Hydroxyl radical

Formula: HO
Molecular weight: 17.0073
IUPAC Standard InChI: InChI=1S/HO/h1H
IUPAC Standard InChIKey: TUJKJAMUKRIRHC-UHFFFAOYSA-N
CAS Registry Number: 3352-57-6
Chemical structure:
This structure is also available as a 2d Mol file or as a computed 3d SD file
The 3d structure may be viewed using Java or Javascript.
Isotopologues:
- Hydroxyl-d
- hydroxyl-t
Permanent link for this species. Use this link for bookmarking this species for future reference.
Information on this page:
Other data available:
- Gas phase thermochemistry data
Data at other public NIST sites:
- Microwave spectra (on physics lab web site)
- Gas Phase Kinetics Database
Options:
- Switch to SI units

Data at NIST subscription sites:

NIST / TRC Web Thermo Tables, professional edition (thermophysical and thermochemical data)

NIST subscription sites provide data under the NIST Standard Reference Data Program, but require an annual fee to access. The purpose of the fee is to recover costs associated with the development of data collections included in such sites. Your institution may already be a subscriber. Follow the links above to find out more about the data in these sites and their terms of usage.

Reaction thermochemistry data

Go To: Top, Henry's Law data, Gas phase ion energetics data, Ion clustering data, Constants of diatomic molecules, References, Notes

Data compiled by: John E. Bartmess

Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. A general reaction search form is also available. Future versions of this site may rely on reaction search pages in place of the enumerated reaction displays seen below.

Individual Reactions

O^- + = Hydroxyl radical

By formula: O^- + H⁺ = HO

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	382.600 ± 0.010	kcal/mol	D-EA	Neumark, Lykke, et al., 1985	gas phase; Given: 1.461122(3) eV; revised to 1.4611107(17) eV, 95BLO, based on missing term+86CODATA
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	376.73 ± 0.15	kcal/mol	H-TS	Neumark, Lykke, et al., 1985	gas phase; Given: 1.461122(3) eV; revised to 1.4611107(17) eV, 95BLO, based on missing term+86CODATA

+ Hydroxyl radical = HFO^-

By formula: F^- + HO = HFO^-

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	32.4 ± 2.3	kcal/mol	LPES	Deyerl and Continetti, 2005	gas phase; affinity at 0 K

+ Hydroxyl radical = ( • )

By formula: H^- + HO = (H^- • HO)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	51.8 ± 4.1	kcal/mol	Ther	de Koening and Nibbering, 1984	gas phase

Henry's Law data

Go To: Top, Reaction thermochemistry data, Gas phase ion energetics data, Ion clustering data, Constants of diatomic molecules, References, Notes

Data compiled by: Rolf Sander

Henry's Law constant (water solution)

k_H(T) = k°_H exp(d(ln(k_H))/d(1/T) ((1/T) - 1/(298.15 K)))
k°_H = Henry's law constant for solubility in water at 298.15 K (mol/(kg*bar))
d(ln(k_H))/d(1/T) = Temperature dependence constant (K)

k°_H (mol/(kg*bar))	d(ln(k_H))/d(1/T) (K)	Method	Reference	Comment
30.	4500.	T	N/A
25.		C	N/A
200.		C	N/A
9000.		C	N/A
25.	5300.	C	N/A	missing citation assumed the temperature dependence to be the same as for water.
32.		T	N/A
29.	3100.	T	N/A	Calculated from correlation between the polarizabilities and solubilities of stable gases. The temperature dependence is an estimate of the upper limit.

Gas phase ion energetics data

Go To: Top, Reaction thermochemistry data, Henry's Law data, Ion clustering data, Constants of diatomic molecules, References, Notes

Data evaluated as indicated in comments:
HL - Edward P. Hunter and Sharon G. Lias
L - Sharon G. Lias

Data compiled as indicated in comments:
B - John E. Bartmess
LL - Sharon G. Lias and Joel F. Liebman
LBLHLM - Sharon G. Lias, John E. Bartmess, Joel F. Liebman, John L. Holmes, Rhoda D. Levin, and W. Gary Mallard
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron

View reactions leading to HO⁺ (ion structure unspecified)

Quantity	Value	Units	Method	Reference	Comment
IE (evaluated)	13.017 ± 0.002	eV	N/A	N/A	L
Quantity	Value	Units	Method	Reference	Comment
Proton affinity (review)	141.8	kcal/mol	N/A	Hunter and Lias, 1998	HL
Quantity	Value	Units	Method	Reference	Comment
Gas basicity	134.8	kcal/mol	N/A	Hunter and Lias, 1998	HL

Electron affinity determinations

EA (eV)	Method	Reference	Comment
1.82767	LPD	Smith, Kim, et al., 1997	Given: 14741.02(3) cm-1. dHacid(0K) = 389.11±0.014; B
1.827669 ± 0.000044	LPD	Schulz, Mead, et al., 1982	Given: 1.82767±0.00021 eV; B
1.829 ± 0.010	LPES	Celotta, Bennett, et al., 1974	B
1.8250 ± 0.0020	LPD	Hotop, Patterson, et al., 1974	B
1.830 ± 0.040	PD	Branscomb, 1966	B
1.80 ± 0.20	EIAE	Tsuda and Hamill, 1964	From MeOH,EtOH,nPrOH; B
1.80321	N/A	Check, Faust, et al., 2001	MnBr3-; ; ΔS(EA)=1.7; B
1.89 ± 0.12	SI	Page and Goode, 1969	The Magnetron method, lacking mass analysis, is not considered reliable.; B

Ionization energy determinations

IE (eV)	Method	Reference	Comment
13.0170 ± 0.0002	TE	Wiedmann, Tonkyn, et al., 1992	LL
13.01	PE	Van Lonkhuyzen and De Lange, 1984	LBLHLM
12.88	DER	Berkowitz, Appelman, et al., 1973	LLK
13.5 ± 1.0	EI	Uy, Srivastava, et al., 1971	LLK
12.94	DER	Dibeler, Walker, et al., 1966	RDSH
13.2 ± 0.1	EI	Foner and Hudson, 1956	RDSH
13.01	PE	Katsumata and Lloyd, 1977	Vertical value; LLK

De-protonation reactions

O^- + = Hydroxyl radical

By formula: O^- + H⁺ = HO

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	382.600 ± 0.010	kcal/mol	D-EA	Neumark, Lykke, et al., 1985	gas phase; Given: 1.461122(3) eV; revised to 1.4611107(17) eV, 95BLO, based on missing term+86CODATA; B
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	376.73 ± 0.15	kcal/mol	H-TS	Neumark, Lykke, et al., 1985	gas phase; Given: 1.461122(3) eV; revised to 1.4611107(17) eV, 95BLO, based on missing term+86CODATA; B

Ion clustering data

Go To: Top, Reaction thermochemistry data, Henry's Law data, Gas phase ion energetics data, Constants of diatomic molecules, References, Notes

Data compiled by: John E. Bartmess

Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. Searches may be limited to ion clustering reactions. A general reaction search form is also available.

Clustering reactions

+ Hydroxyl radical = HFO^-

By formula: F^- + HO = HFO^-

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	32.4 ± 2.3	kcal/mol	LPES	Deyerl and Continetti, 2005	gas phase; affinity at 0 K

+ Hydroxyl radical = ( • )

By formula: H^- + HO = (H^- • HO)

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	51.8 ± 4.1	kcal/mol	Ther	de Koening and Nibbering, 1984	gas phase

Constants of diatomic molecules

Go To: Top, Reaction thermochemistry data, Henry's Law data, Gas phase ion energetics data, Ion clustering data, References, Notes

Data compiled by: Klaus P. Huber and Gerhard H. Herzberg

Data collected through May, 1977

Symbols used in the table of constants
Symbol	Meaning
State	electronic state and / or symmetry symbol
T_e	minimum electronic energy (cm^-1)
ω_e	vibrational constant – first term (cm^-1)
ω_ex_e	vibrational constant – second term (cm^-1)
ω_ey_e	vibrational constant – third term (cm^-1)
B_e	rotational constant in equilibrium position (cm^-1)
α_e	rotational constant – first term (cm^-1)
γ_e	rotation-vibration interaction constant (cm^-1)
D_e	centrifugal distortion constant (cm^-1)
β_e	rotational constant – first term, centrifugal force (cm^-1)
r_e	internuclear distance (Å)
Trans.	observed transition(s) corresponding to electronic state
ν₀₀	position of 0-0 band (units noted in table)

Diatomic constants for ¹⁶O¹H
State	T_e	ω_e	ω_ex_e	ω_ey_e	B_e	α_e	γ_e	D_e	β_e	r_e	Trans.	ν₀₀
Theoretical potential functions for 48 states Easson and Pryce, 1973; for X ²Π and A ²Σ⁺ see Stevens, Das, et al., 1974 Chu, Yoshimine, et al., 1974 Meyer and Rosmus, 1975.
C ²Σ⁺	89459.₁	1232.9 Z	19.1		4.247 1 2	0.078		2E-4		2.046₁	C → A 3 4 R	55820.7 Z
C ²Σ⁺	↳Michel, 1957; Felenbok, 1963; missing citation
C ²Σ⁺ 5											(C → X) 3	(88223)
C ²Σ⁺ 5	↳Michel, 1957; missing citation
D ²Σ^-	(82130)	(2954)			[15.2179] 6			[16.16E-4]		[1.0809₃]	D ← X 7 R	81759.7₈ 8 Z
D ²Σ^-	↳Douglas, 1974
State	T_e	ω_e	ω_ex_e	ω_ey_e	B_e	α_e	γ_e	D_e	β_e	r_e	Trans.	ν₀₀
B ²Σ⁺	69774	[660.0] Z	9		[5.086] 10 2	11		[9.29E-4] 12		[1.869₈]	B → A 4 R	35965.5 Z
B ²Σ⁺	↳Barrow, 1956; Michel, 1957; Herman, Felenbok, et al., 1961; missing citation; missing citation; missing citation; Czarny, Felenbok, et al., 1971
A ²Σ⁺	32684.1	3178.8₆ Z	92.91₇ 13		17.358 14 15 16 2	0.786₈ 17	-0.016	[20.39E-4] 18		1.0121	A ↔ X 19 20 R	32402.3₉ 8 Z
A ²Σ⁺	↳Dieke and Crosswhite, 1948; Stoebner and Delbourgo, 1967; missing citation
X ²Π_i	0 21	3737.76₁ Z	84.881₃ 22		18.910₈ 23 2	0.7242 24		19.38E-4 25		0.96966	1/2 ← 3/2 26	126.23
	↳Evenson, Wells, et al., 1970; Mizushima, 1972
	Rotational-vibration band 27 28
	1-0 sequence
	↳Allen, Blaine, et al., 1957; Charters and Polanyi, 1960; Maillard, Chauville, et al., 1976
	2-0 sequence
	↳Benedict, Plyler, et al., 1953; Charters and Polanyi, 1960; Rogge, Yarger, et al., 1960; Maillard, Chauville, et al., 1976
	3-0 sequence
	↳Bass and Garvin, 1962; Maillard, Chauville, et al., 1976
	4-0 sequence
	↳Herman and Hornbeck, 1953; Chamberlain and Roesler, 1955; McKinley, Garvin, et al., 1955; Bass and Garvin, 1962
	other sequences
	↳Chamberlain and Roesler, 1955; McKinley, Garvin, et al., 1955; Blackwell, Ingham, et al., 1960; Bass and Garvin, 1962
	Rotation sp.
	↳Madden and Benedict, 1955; Ducas and Javan, 1974; Downey, Robinson, et al., 1977
	Hf Λ-doubling sp. 29 30 31
	↳Dousmanis, Sanders, et al., 1955; Ehrenstein, 1963; Poynter and Beaudet, 1968; Destombes, Marliere, et al., 1974; Destombes and Marliere, 1975; Meerts and Dymanus, 1975; Meerts, 1977
	EPR sp. 32
	↳Radford, 1961; Churg and Levy, 1970; Clough, Curran, et al., 1971; Lee, Tam, et al., 1971; Hinkley, Walker, et al., 1973; Lee and Tam, 1974

Notes

Spin splitting constants γ₀ ...γ₃ = +1.09...+0.67 Michel, 1957, Carlone and Dalby, 1969.

RKR potential functions Fallon, Tobias, et al., 1961, Horsley and Richards, 1969.

Lifetime of the upper state of the C→A system ~ 6 ns; measurements in the 1700-1900 region give τ ~2 ns which, in spite of the poor agreement, is not inconsistent with the assignment of at least part of these bands to C→X Smith and Stella, 1975. Much longer lifetimes (~ 80 ns) have been reported by Remy, 1971.

Franck-Condon factors Felenbok, 1963.

Strong many-line spectrum 1900-1700 Å, tentative identification.

Spin splitting constant γ₀ = -0.293.

Theoretical oscillator strength f₀₀ = 0.0036 Ray and Kelly, 1975.

Energy of N'=0 relative to the zero-point of the Hill-Van Vleck expression for the ground state.

Using isotope relations Barrow, 1956 estimates ω_e = 940, ω_ex_e = 105, ω_ey_e = -21.₅.

Spin splitting constant γ<0.03 Carlone and Dalby, 1969. Predissociation by rotation in v=0 above N=15, in v=1 above N=9; dissociation products ¹S + ²S Felenbok, 1963, Carlone and Dalby, 1969.

B₁ = 4.119. Constants for the B state are from Carlone and Dalby, 1969.

D₁ ~ 29.1E-4, H₁= -15E-5.

-1.791₅(v+1/2)³ + 0.3236₂(v+1/2)⁴ - 0.03585(v+1/2)⁵ Barrow, 1956. Energy levels and improved ΔG(v+1/2) values are listed in Carlone and Dalby, 1969.

Spin splitting constants γ₀ ... γ₃ = 0.201, 0.196, 0.192, 0.193 Moore and Richards, 1971; see also Dieke and Crosswhite, 1948.

Predissociation in v=0 above N=23, in v=1 above N=14, and of all levels in v=2; from the lifetime measurements of Elmergreen and Smith, 1972, Anderson and Sutherland, 1973, German, 1975. A sharp decrease in the intensity of emission lines originating from the predissociated levels has been observed at or slightly above threshold in low pressure flames and discharges Gaydon and Wolfhard, 1951, Broida and Kane, 1953, Naegeli and Palmer, 1967; Charton and Gaydon, 1958 report corresponding intensity increases due to inverse predissociation in hydrogen flames; see also Gutman, Lutz, et al., 1968. The predissociation is noticeably stronger for the F₁ than for the F₂ levels; according to Palmer and Naegeli, 1968, Michels and Harris, 1969, Gaydon and Kopp, 1971, Anderson and Sutherland, 1973, Palmer and Naegeli, 1973, Smith, Elmergreen, et al., 1974, German, 1975 it is caused by the ⁴Σ^- state arising from ³P + ²S, but the possibility of predissociation by the ²Π ground state has also been considered Durmaz and Murrell, 1971, Julienne, Krauss, et al., 1971. A much stronger predissociation of A ²Σ⁺ leading to diffuseness in the B→A bands has been observed Michel, 1957, Czarny and Felenbok, 1968, Carlone and Dalby, 1969 for v=5, 6, 7 at all N levels and for v=8 above N=6; according to Czarny, Felenbok, et al., 1971 it is produced by the ⁴Π state arising from ³P + ²S.

μ_el(v=0) = 1.98 D from high-field Stark effects on the A→X transition Scarl and Dalby, 1971.

The equilibrium constants were derived by Barrow, 1956 to fit B_v from v=0 to 4. Improved B_v values (v=0.. .3) have been obtained by Moore and Richards, 1971 from the data of Dieke and Crosswhite, 1948; additional B_v values for v≤9 are listed in Barrow, 1956, Michel, 1957, Felenbok, 1963, Carlone and Dalby, 1969. For term values (v=0...3) see Moore and Richards, 1971.

Other D_v values in Moore and Richards, 1971 and Barrow, 1956, Michel, 1957, Felenbok, 1963, Carlone and Dalby, 1969; H₀ = 8.7₁E-8 Moore and Richards, 1971.

Radiative lifetimes τ(v=0,N=1) = 693 ± 10 ns, τ(v=l,N=1) = 736 ± 11 ns German, 1975. The increase from v=0 to v=1 and a similar variation with increasing rotation in v=0 [ German, 1975, see also Elmergreen and Smith, 1972, Anderson and Sutherland, 1973] are explained by the dependence on r of the transition moment [see German, 1975 and references given there]. Hogan and Davis, 1974 using a method very similar to German, 1975 obtain 720 765 ns for the average lifetimes of several low-lying rotational levels in v=0 and 1, respectively. Earlier apparently less accurate determinations Elmergreen and Smith, 1972, Becker and Haaks, 1973, Anderson and Sutherland, 1973, Becker, Haaks, et al., 1974, Brophy, Silver, et al., 1974 gave somewhat higher τ values [see also Bennett and Dalby, 1964]; Hanle effect measurements de Zafra, Marshall, et al., 1971, German, Bergeman, et al., 1973 are slightly lower. The decay time of the predissociated v=2 level (see 15) is 203 ± 13 ns for N=0 and decreases rapidly at higher N German, 1975; estimated non- radiative lifetime for N=1 ~ 270 ns. High-resolution line absorption measurements by Rouse and Engleman, 1973 [see also Golden, Del Greco, et al., 1963] give f₀₀ = 0.00095 for the rotationless molecule in reasonable agreement with lifetime measurements but in sharp contrast to f₀₀ = 0.0014₈ obtained by Anketell and Pery-Thorne, 1967 using the hook method; f₁₀ values are, respectively, 0.00024 and 0.0008₉.

Observed in emission in all kinds of electric discharges (often as an impurity), in flames Krishnamachari and Broida, 1961 and in the heads of comets; in absorption in H₂O vapour at high temperature Bonhoeffer and Reichardt, 1928 and in electric discharges Oldenberg, 1935, in flames Gaydon, Spokes, et al., 1960, in the flash photolysis of H₂O, O₃ + H₂O, and other mixtures Basco and Norrish, 1961, Black and Porter, 1962, Horne and Norrish, 1967, and in stellar spectra, especially the solar spectrum Moore and Broida, 1959. Emission and absorption in solid neon Tinti, 1968. Atlas of A-X bands Bass and Broida, 1953, new measurements of the 0-0 and 1-0 bands Engleman, 1972. Magnetic rotation spectrum Nanes and Robinson, 1971. Franck-Condon factors Nicholls, 1956, Nicholls, Fraser, et al., 1959, Felenbok, 1963. Vibrational intensity distribution Dieke and Crosswhite, 1948, Crosley and Lengel, 1975; rotational intensity distribution Learner, 1962, Meinel, 1967; effect of variation of transition moment with r and dependence on J Anketell and Learner, 1967, Crosley and Lengel, 1975.

A_v = -139.21 - 0.27₅v Maillard, Chauville, et al., 1976.

+0.540₉(v+1/2)³ - 0.0213₄(v+1/2)⁴ - 0.0011₃(v+1/2)⁵, representing the vibrational levels up to v=5 Maillard, Chauville, et al., 1976; see also Herman and Hornbeck, 1953, Chamberlain and Roesler, 1955. ΔG(1/2) = 3569.64₀ Maillard, Chauville, et al., 1976.

Λ-type doubling parameters p_v = 0.235 - 0.006v, q_v = -0.0391 + 0.0018v, see Maillard, Chauville, et al., 1976 who give also centrifugal distortion terms. See 24.

+0.0070₆(v+1/2)² - 0.00050(v+1/2)³, representing B₀ ...B₅ Maillard, Chauville, et al., 1976; slightly different constants in Herman and Hornbeck, 1953, Moore and Richards, 1971, Veseth, 1971, Mizushima, 1972. Term values for v≤3 tabulated in Dieke and Crosswhite, 1948, Moore and Richards, 1971, for v=4, 5, 6 in Herman and Hornbeck, 1953, for v=7, 8, 9 in Bass and Garvin, 1962.

-0.43₂E-4(v+1/2) + 0.024E-4(v+1/2)²; H₀ = 14.2E-8 Maillard, Chauville, et al., 1976, see 24.

The 79 μm electric dipole spectrum (²Π_1/2,J=1/2 ← ²Π_3/2, J=3/2) has been measured by the laser magnetic resonance method.

Observed in emission in the spectrum of the night sky Meinel, 1950, Chamberlain and Roesler, 1955, Jones, 1955, Connes and Gush, 1959, Blackwell, Ingham, et al., 1960, in the H + O₃ reaction McKinley, Garvin, et al., 1955, Kraus, 1957, Bass and Garvin, 1962, Murphy, 1971, in the H + O₂ reaction Charters and Polanyi, 1960, and in oxyacetylene flames Benedict, Plyler, et al., 1953, Allen, Blaine, et al., 1957, Rogge, Yarger, et al., 1960, Maillard, Chauville, et al., 1976. In absorption in rare gas matrices Acquista, Schoen, et al., 1968.

Radiative lifetimes derived from observed intensities: τ(v=1) = 24 ms, τ(v=2) = 12 ms Roux, d'Incan, et al., 1973; from the decay rate of the 9→7 radiation: τ(v=9) = 64 ms Potter, Coltharp, et al., 1971. The dipole moment function has been studied by many authors, most recently by Ferguson and Parkinson, 1963, d'Incan, Effantin, et al., 1971, Murphy, 1971 and Roux, d'Incan, et al., 1973 from measured band strengths and transition probabilities. An extensive ab initio calculation of the dipole moment function is given by Stevens, Das, et al., 1974 [see also Chu, Yoshimine, et al., 1974]. Mies, 1974 has used this ab initio function to predict absolute intensities of a large array of vibration-rotation transitions taking account of spin uncoupling and vibration-rotation interaction [see also the early work of Heaps and Herzberg, 1952 and Cashion, 1963].

The 18 cm transition (²Π_3/2,J=3/2) consists of four components Ehrenstein, Townes, et al., 1959, Radford, 1964, ter Meulen and Dymanus, 1972: F'=1←F"=2 1612.2310₁ MHz F'=1←F"=1 1665.4018₄ MHz F'=2←F"=2 1667.3590₃ MHz F'=2←F"=1 1720.5299₈ MHz Einstein A coefficients for these transitions have been calculated by Turner, 1966. Calculated frequencies for ¹⁷OH Valtz and Soglasnova, 1973.

Hfs and Λ-doubling constants. From Stark shifts of the hf Λ-doubling transitions Powell and Lide, 1965, Meerts and Dymanus, 1973 determine μ_el(v=0) = 1.6676 D.

Also observed in interstellar clouds, see the reviews in Barrett, 1967, Robinson and McGee, 1967, Cook, 1969. In some clouds there is strong evidence for maser action. In the laboratory population inversion between Λ-doublet states was recently observed by ter Meulen, Meerts, et al., 1976.

Observed in v=0...9. Hyperfine and Λ-doubling constants. EPR spectrum of ¹⁷OH Carrington and Lucas, 1970.

Short extrapolation of the vibrational levels in A ²Σ⁺, assuming that this state has no potential maximum; confirmed by the observed predissociation in B ²Σ⁺ Carlone and Dalby, 1969. D_e = 4.621 eV, in complete agreement with the most recent theoretical value Arnold, Whiting, et al., 1976.

Photoionization mass-spectrometry of HOF Berkowitz, Appelman, et al., 1973; 13.01 eV from the photoelectron spectrum Katsumata and Lloyd, 1977.

References

Go To: Top, Reaction thermochemistry data, Henry's Law data, Gas phase ion energetics data, Ion clustering data, Constants of diatomic molecules, Notes

Neumark, Lykke, et al., 1985
Neumark, D.M.; Lykke, K.R.; Andersen, T.; Lineberger, W.C., Laser photodetachment measurement of the electron affinity of atomic oxygen, Phys. Rev. A:, 1985, 32, 1890. [all data]

Deyerl and Continetti, 2005
Deyerl, H.J.; Continetti, R.E., Photoelectron-photofragment coincidence study of OHF-: transition state dynamics of the reaction OH+F - O+HF, Phys. Chem. Chem. Phys., 2005, 7, 5, 855-860, https://doi.org/10.1039/b414604b . [all data]

de Koening and Nibbering, 1984
de Koening, L.J.; Nibbering, N.M.M., Formation of the Long-Lived H₂O^-. Ion in the Gas Phase, J. Am. Chem. Soc., 1984, 106, 25, 7971, https://doi.org/10.1021/ja00337a054 . [all data]

Hunter and Lias, 1998
Hunter, E.P.; Lias, S.G., Evaluated Gas Phase Basicities and Proton Affinities of Molecules: An Update, J. Phys. Chem. Ref. Data, 1998, 27, 3, 413-656, https://doi.org/10.1063/1.556018 . [all data]

Smith, Kim, et al., 1997
Smith, J.R.; Kim, J.B.; Lineberger, W.C., High-resolution Threshold Photodetachment Spectroscopy of OH-, Phys. Rev. A, 1997, 55, 3, 2036, https://doi.org/10.1103/PhysRevA.55.2036 . [all data]

Schulz, Mead, et al., 1982
Schulz, P.A.; Mead, R.D.; Jones, P.L.; Lineberger, W.C., OH- and OD- threshold photodetachment, J. Chem. Phys., 1982, 77, 1153. [all data]

Celotta, Bennett, et al., 1974
Celotta, R.S.; Bennett, R.A.; Hall, J.L., Laser Photodetachment Determination of the Electron Affinities of OH, NH₂, NH, SO₂, and S₂, J. Chem. Phys., 1974, 60, 5, 1740, https://doi.org/10.1063/1.1681268 . [all data]

Hotop, Patterson, et al., 1974
Hotop, H.; Patterson, T.A.; Lineberger, W.C., High resolution photodetachment study of OH- and OD- in the threshold region 7000-6450 Å, J. Chem. Phys., 1974, 60, 1806. [all data]

Branscomb, 1966
Branscomb, L.M., Photodetachment Cross Section, Electron Affinity, and Structure of the Negative Hydroxyl Ion, Phys. Rev., 1966, 148, 1, 11, https://doi.org/10.1103/PhysRev.148.11 . [all data]

Tsuda and Hamill, 1964
Tsuda, S.; Hamill, W.H., Ionization Efficiency Measurements by the Retarding Potential Difference Method, Adv. Mass Spectrom., 1964, 3, 249. [all data]

Check, Faust, et al., 2001
Check, C.E.; Faust, T.O.; Bailey, J.M.; Wright, B.J.; Gilbert, T.M.; Sunderlin, L.S., Addition of Polarization and Diffuse Functions to the LANL2DZ Basis Set for P-Block Elements, J. Phys. Chem. A,, 2001, 105, 34, 8111, https://doi.org/10.1021/jp011945l . [all data]

Page and Goode, 1969
Page, F.M.; Goode, G.C., Negative Ions and the Magnetron., Wiley, NY, 1969. [all data]

Wiedmann, Tonkyn, et al., 1992
Wiedmann, R.T.; Tonkyn, R.G.; White, M.G.; Wang, K.; McKoy, V., Rotationally resolved threshold photoelectron spectra of OH and OD, J. Chem. Phys., 1992, 97, 768. [all data]

Van Lonkhuyzen and De Lange, 1984
Van Lonkhuyzen, H.; De Lange, C.A., U. V. photoelectron spectroscopy of OH and OD radicals, Mol. Phys., 1984, 51, 551. [all data]

Berkowitz, Appelman, et al., 1973
Berkowitz, J.; Appelman, E.H.; Chupka, W.A., Photoionization of HOF with mass analysis, J. Chem. Phys., 1973, 58, 1950. [all data]

Uy, Srivastava, et al., 1971
Uy, O.M.; Srivastava, R.D.; Farber, M., Mass spectrometric determination of the heats of formation of gaseous BO₂ BOF₂, High Temp. Sci., 1971, 3, 462. [all data]

Dibeler, Walker, et al., 1966
Dibeler, V.H.; Walker, J.A.; Rosenstock, H.M., Mass spectrometric study of photoionization. V.Water and ammonia, J.Res. NBS, 1966, 70A, 459. [all data]

Foner and Hudson, 1956
Foner, S.N.; Hudson, R.L., Ionization potential of the OH free radical by mass spectrometry, J. Chem. Phys., 1956, 25, 602. [all data]

Katsumata and Lloyd, 1977
Katsumata, S.; Lloyd, D.R., The photoelectron spectra of the OH and OD radicals, Chem. Phys. Lett., 1977, 45, 519. [all data]

Easson and Pryce, 1973
Easson, I.; Pryce, M.H.L., Calculated potential energy curves of OH, Can. J. Phys., 1973, 51, 518. [all data]

Stevens, Das, et al., 1974
Stevens, W.J.; Das, G.; Wahl, A.C.; Krauss, M.; Neumann, D., Study of the ground state potential curve and dipole moment of OH by the method of optimized valence configurations, J. Chem. Phys., 1974, 61, 3686. [all data]

Chu, Yoshimine, et al., 1974
Chu, S.-I.; Yoshimine, M.; Liu, B., Ab initio study of the X²Π and A²Σ⁺ states of OH. I. Potential curves and properties, J. Chem. Phys., 1974, 61, 5389. [all data]

Meyer and Rosmus, 1975
Meyer, W.; Rosmus, P., PNO-Cl and CEPA studies of electron correlation effects. III. Spectroscopic constants and dipole moment functions for the ground states of the first-row and second-row diatomic hydrides, J. Chem. Phys., 1975, 63, 2356. [all data]

Michel, 1957
Michel, A., Das C²Σ⁺ → A²Σ⁺-Bandensystem von OH, Z. Naturforsch. A, 1957, 12, 887. [all data]

Felenbok, 1963
Felenbok, P., Contribution a l'etude du spectre moleculaire des radicaux OH et OD, Ann. Astrophys., 1963, 26, 393. [all data]

Douglas, 1974
Douglas, A.E., Absorption of OH in the 1200 Å region, Can. J. Phys., 1974, 52, 318. [all data]

Barrow, 1956
Barrow, R.F., The B²Σ⁺-A²Σ⁺ band-systems of OH and OD, Ark. Fys., 1956, 11, 281. [all data]

Herman, Felenbok, et al., 1961
Herman, L.; Felenbok, P.; Herman, R., Spectre d'emission des radicaux OH et OD, J. Phys. Radium, 1961, 22, 83. [all data]

Czarny, Felenbok, et al., 1971
Czarny, J.; Felenbok, P.; Lefebvre-Brion, H., High vibrational level predissociation in the A²Σ⁺ state of OD, J. Phys. B:, 1971, 4, 124. [all data]

Dieke and Crosswhite, 1948
Dieke; Crosswhite, Bumblebee Series, Johns Hopkins University (reference not verified), Rpt. No. 87, 1948, 1. [all data]

Stoebner and Delbourgo, 1967
Stoebner, A.; Delbourgo, R., Contribution a l'etude spectrographique de la sequence 0=2 de la transition A²Σ⁺ - X²Π du radical OH, J. Chim. Phys. Phys.-Chim. Biol., 1967, 64, 1115. [all data]

Evenson, Wells, et al., 1970
Evenson, K.M.; Wells, J.S.; Radford, H.E., Infrared resonance of OH with the H₂O laser: a galactic maser pump?, Phys. Rev. Lett., 1970, 25, 199. [all data]

Mizushima, 1972
Mizushima, M., Molecular parameters of OH free radical, Phys. Rev. A: Gen. Phys., 1972, 5, 143. [all data]

Allen, Blaine, et al., 1957
Allen, H.C., Jr.; Blaine, L.R.; Plyler, E.K., The emission spectrum of OH from 2-8 to 4-1 μ, Spectrochim. Acta, 1957, 9, 126. [all data]

Charters and Polanyi, 1960
Charters, P.E.; Polanyi, J.C., An improved technique for the observation of infrared chemiluminescence: resolved infrared emission of OH arising from the system H + O₂, Can. J. Chem., 1960, 38, 1742. [all data]

Maillard, Chauville, et al., 1976
Maillard, J.P.; Chauville, J.; Mantz, A.W., High-resolution emission spectrum of OH in an oxyacetylene flame from 3.7 to 0.9 μm, J. Mol. Spectrosc., 1976, 63, 120. [all data]

Benedict, Plyler, et al., 1953
Benedict, W.S.; Plyler, E.K.; Humphreys, C.J., The emission spectrum of OH from 1.4 to 1.7 μ, J. Chem. Phys., 1953, 21, 398. [all data]

Rogge, Yarger, et al., 1960
Rogge, W.H.; Yarger, F.L.; Dickey, F.P., Emission spectrum of the OH radical in an oxyacetylene flame in the 1.5-μ region, J. Chem. Phys., 1960, 33, 453. [all data]

Bass and Garvin, 1962
Bass, A.M.; Garvin, D., Analysis of the hydroxyl radical vibration rotation spectrum between 3900 Å and 11500 Å, J. Mol. Spectrosc., 1962, 9, 114. [all data]

Herman and Hornbeck, 1953
Herman, R.C.; Hornbeck, G.A., Vibration-rotation bands of OH, Astrophys. J., 1953, 118, 214. [all data]

Chamberlain and Roesler, 1955
Chamberlain, J.W.; Roesler, F.L., The OH bands in the infrared airglow, Astrophys. J., 1955, 121, 541. [all data]

McKinley, Garvin, et al., 1955
McKinley, J.D., Jr.; Garvin, D.; Boudart, M.J., Production of excited hydroxyl radicals in the hydrogen atom-ozone reaction, J. Chem. Phys., 1955, 23, 784. [all data]

Blackwell, Ingham, et al., 1960
Blackwell, D.E.; Ingham, M.F.; Rundle, H.N., The night-sky spectrum λλ 5000-6500 A, Astrophys. J., 1960, 131, 15. [all data]

Madden and Benedict, 1955
Madden, R.P.; Benedict, W.S., Pure rotation lines of OH, J. Chem. Phys., 1955, 23, 408. [all data]

Ducas and Javan, 1974
Ducas, T.W.; Javan, A., Measurement of microwave fine structure in OH infrared transitions using frequency mixing with metal-to-metal infrared diodes, J. Chem. Phys., 1974, 60, 1677. [all data]

Downey, Robinson, et al., 1977
Downey, G.D.; Robinson, D.W.; Smith, J.H., A pure-rotational collisionally pumped OH laser, J. Chem. Phys., 1977, 66, 1685. [all data]

Dousmanis, Sanders, et al., 1955
Dousmanis, G.C.; Sanders, T.M., Jr.; Townes, C.H., Microwave spectra of the free radicals OH and OD, Phys. Rev., 1955, 100, 1735. [all data]

Ehrenstein, 1963
Ehrenstein, G., Hyperfine structure in O¹⁷H and the OH dipole moment, Phys. Rev., 1963, 130, 669. [all data]

Poynter and Beaudet, 1968
Poynter, R.L.; Beaudet, R.A., Predictions of several OH λ doubling transitions suitable for radio astronomy, Phys. Rev. Lett., 1968, 21, 305. [all data]

Destombes, Marliere, et al., 1974
Destombes, J.-L.; Marliere, C.; Rohart, F.; Burie, J., Nouvelle analyse du spectre hertzien du radical hydroxyl, C.R. Acad. Sci. Paris, Ser. B, 1974, 278, 275. [all data]

Destombes and Marliere, 1975
Destombes, J.L.; Marliere, C., Measurement of hyperfine splitting in the OH radical by a radio-frequency microwave double resonance method, Chem. Phys. Lett., 1975, 34, 532. [all data]

Meerts and Dymanus, 1975
Meerts, W.L.; Dymanus, A., A molecular beam electric resonance study of the hyperfine Λ doubling spectrum of OH, OD, SH, and SD, Can. J. Phys., 1975, 53, 2123. [all data]

Meerts, 1977
Meerts, W.L., On the microwave spectrum of the X²Π state of the hydroxyl radical, Chem. Phys. Lett., 1977, 46, 24. [all data]

Radford, 1961
Radford, H.E., Microwave Zeeman effect of free hydroxyl radicals, Phys. Rev., 1961, 122, 114. [all data]

Churg and Levy, 1970
Churg, A.; Levy, D.H., The magnetic resonance spectrum of vibrationally excited OH and A prediciton of the radio-astronomy spectrum, Astrophys. J., 1970, 162, 161. [all data]

Clough, Curran, et al., 1971
Clough, P.N.; Curran, A.H.; Thrush, B.A., The e.p.r. spectrum of vibrationally excited hydroxyl radicals, Proc. R. Soc. London A, 1971, 323, 541. [all data]

Lee, Tam, et al., 1971
Lee, K.P.; Tam, W.G.; Larouche, R.; Woonton, G.A., Electron resonance of vibrationally excited OH radicals, Can. J. Phys., 1971, 49, 2207. [all data]

Hinkley, Walker, et al., 1973
Hinkley, R.K.; Walker, T.E.H.; Richards, W.G., On the e.p.r. spectrum of vibrationally excited hydroxyl radicals, Proc. R. Soc. London A, 1973, 331, 553. [all data]

Lee and Tam, 1974
Lee, K.P.; Tam, W.G., Molecular constants of vibrationally excited hydroxyl radical from electron paramagnetic resonance, Chem. Phys., 1974, 4, 434. [all data]

Carlone and Dalby, 1969
Carlone, C.; Dalby, F.W., Spectrum of the hydroxyl radical, Can. J. Phys., 1969, 47, 1945. [all data]

Fallon, Tobias, et al., 1961
Fallon, R.J.; Tobias, I.; Vanderslice, J.T., Potential energy curves for OH, J. Chem. Phys., 1961, 34, 167. [all data]

Horsley and Richards, 1969
Horsley, J.A.; Richards, W.G., Les forces interatomiques a grandes distances dans les etats excites du radical OH, J. Chim. Phys. Phys.-Chim. Biol., 1969, 66, 41. [all data]

Smith and Stella, 1975
Smith, Wm.H.; Stella, G., Lifetimes for OH and OD electronic states with resonance transitions in the region between 1700 and 1950 Å, J. Chem. Phys., 1975, 63, 2395. [all data]

Remy, 1971
Remy, F., Time resolved spectroscopy of a pulsed discharge through water vapor: observation of emissions from the C²Σ⁺ state of OH, Spectrosc. Lett., 1971, 4, 319. [all data]

Ray and Kelly, 1975
Ray, S.; Kelly, H.P., Oscillator strength for the D²Σ^--X²Π transition in OH, Astrophys. J., 1975, 202, 57. [all data]

Moore and Richards, 1971
Moore, E.A.; Richards, W.G., A reanalysis of the A²Σ⁺ - X²Π_i system of OH, Phys. Scr., 1971, 3, 223. [all data]

Elmergreen and Smith, 1972
Elmergreen, B.G.; Smith, W.H., Direct measurement of the lifetimes and predissociation probabilities for rotational levels of the OH and OD A²Σ⁺ states, Astrophys. J., 1972, 178, 557. [all data]

Anderson and Sutherland, 1973
Anderson, R.A.; Sutherland, R.A., Erratum: Radiative and predissociative lifetimes of the A²Σ⁺ state of OH [Ref.: J. Chem. Phys., 1973, Vol. 58, 1226], J. Chem. Phys., 1973, 59, 6690. [all data]

German, 1975
German, K.R., Direct measurement of the radiative lifetimes of the A²Σ⁺ (V' = 0) states of OH and OD, J. Chem. Phys., 1975, 62, 2584. [all data]

Gaydon and Wolfhard, 1951
Gaydon, A.G.; Wolfhard, H.G., Predissociation in the spectrum of OH; the vibrational and rotational intensity distribution in flames, Proc. R. Soc. London A, 1951, 208, 63. [all data]

Broida and Kane, 1953
Broida, H.P.; Kane, W.R., Rotational intensity distributions of OH and OD in an electrodeless discharge through water vapor, Phys. Rev., 1953, 89, 1053. [all data]

Naegeli and Palmer, 1967
Naegeli, D.W.; Palmer, H.B., Predissociation in the chemiluminescent emission spectrum of OH, J. Mol. Spectrosc., 1967, 23, 44. [all data]

Charton and Gaydon, 1958
Charton, M.; Gaydon, A.G., Excitation of spectra of OH in hydrogen flames and its relation to excess concentrations of free atoms, Proc. R. Soc. London A, 1958, 245, 84. [all data]

Gutman, Lutz, et al., 1968
Gutman, D.; Lutz, R.W.; Jacobs, N.F.; Hardwidge, E.A., Shock-tube study of OH chemiluminescence in the hydrogen-oxygen reaction, J. Chem. Phys., 1968, 48, 5689. [all data]

Palmer and Naegeli, 1968
Palmer, H.B.; Naegeli, D.W., Predissociation of chemiluminescent OH and OD, J. Mol. Spectrosc., 1968, 28, 417-421. [all data]

Michels and Harris, 1969
Michels, H.H.; Harris, F.E., Predissociation effects in the A²Σ⁺ state of the OH radical, Chem. Phys. Lett., 1969, 3, 441. [all data]

Gaydon and Kopp, 1971
Gaydon, A.G.; Kopp, I., Predissociation in the spectrum of OH; a reinterpretation, J. Phys. B:, 1971, 4, 752. [all data]

Palmer and Naegeli, 1973
Palmer, H.B.; Naegeli, D.W., On the crossing of the ⁴Σ^- and A²Σ⁺ states of OH, J. Chem. Phys., 1973, 59, 994. [all data]

Smith, Elmergreen, et al., 1974
Smith, W.H.; Elmergreen, B.G.; Brooks, N.H., Interactions among the lower valence states of the OH radical, J. Chem. Phys., 1974, 61, 2793. [all data]

Durmaz and Murrell, 1971
Durmaz, S.; Murrell, J.N., Predissociation by the continuum of a bound state without curve crossing. Application to the spectrum of OH, Trans. Faraday Soc., 1971, 67, 3395. [all data]

Julienne, Krauss, et al., 1971
Julienne, P.S.; Krauss, M.; Donn, B., Formation of OH through inverse predissociation, Astrophys. J., 1971, 170, 65. [all data]

Czarny and Felenbok, 1968
Czarny, J.; Felenbok, P., Etude a tres haute resolution de la transition B²Σ⁺ → A²Σ⁺ de OH et OD a l'aide d'une source haute frequence mise au point a cet effet, Ann. Astrophys., 1968, 31, 141. [all data]

Scarl and Dalby, 1971
Scarl, E.A.; Dalby, F.W., High-field Stark effects on the near ultraviolet spectrum of the hydroxyl radical, Can. J. Phys., 1971, 49, 2825. [all data]

Hogan and Davis, 1974
Hogan, P.; Davis, D.D., OH lifetime measurements of several K levels in the v' = 1 manifold of the A²Σ⁺ electronic state: excitation via A tunable UV laser, Chem. Phys. Lett., 1974, 29, 555. [all data]

Becker and Haaks, 1973
Becker, K.H.; Haaks, D., Measurement of the natural lifetimes and quenching rate constants of OH(²Σ⁺, v = 0,1) and OD(²Σ⁺, v = 0,1) radicals, Z. Naturforsch. A, 1973, 28, 249. [all data]

Becker, Haaks, et al., 1974
Becker, K.H.; Haaks, D.; Tatarczyk, T., The natural lifetime of OH (²Σ⁺, v=0, N=2, J=3/2) and its quenching by atomic hydrogen, Chem. Phys. Lett., 1974, 25, 564. [all data]

Brophy, Silver, et al., 1974
Brophy, J.H.; Silver, J.A.; Kinsey, J.L., Direct measurement of the radiative lifetime of the A²Σ⁺(v' = 0, K' = 1, J' = 3/2) state of OH and OD, Chem. Phys. Lett., 1974, 28, 418. [all data]

Bennett and Dalby, 1964
Bennett, R.G.; Dalby, F.W., Experimental determination of the oscillator strength of the violet system of OH, J. Chem. Phys., 1964, 40, 1414. [all data]

de Zafra, Marshall, et al., 1971
de Zafra, R.L.; Marshall, A.; Metcalf, H., Measurement of lifetime and g factors by level crossing and optical double resonance in the OH and OD free radicals, Phys. Rev. A: Gen. Phys., 1971, 3, 1557. [all data]

German, Bergeman, et al., 1973
German, K.R.; Bergeman, T.H.; Weinstock, E.M.; Zare, R.N., Zero-field level crossing and optical radio-frequency double resonance studies of the A²Σ⁺ states of OH and OD, J. Chem. Phys., 1973, 58, 4304. [all data]

Rouse and Engleman, 1973
Rouse, P.E.; Engleman, R., Jr., Oscillator strengths from line absorption in a high-temperature furnace. I. The (0,0) and (1,0) bands of the A²Σ⁺-X²Π_i transition in OH and OD, J. Quant. Spectrosc. Radiat. Transfer, 1973, 13, 1503. [all data]

Golden, Del Greco, et al., 1963
Golden, D.M.; Del Greco, F.P.; Kaufman, F., Experimental oscillator strength of OH, ²Σ⁺ → ²Π, by a chemical method, J. Chem. Phys., 1963, 39, 3034. [all data]

Anketell and Pery-Thorne, 1967
Anketell, J.; Pery-Thorne, A., Oscillator strengths in the ²Σ⁺-²Π band system of OH by the hook method, Proc. R. Soc. London A, 1967, 301, 343. [all data]

Krishnamachari and Broida, 1961
Krishnamachari, S.L.N.G.; Broida, H.P., Effect of molecular oxygen on the emission spectra of atomic oxygen-acetylene flames, J. Chem. Phys., 1961, 34, 1709. [all data]

Bonhoeffer and Reichardt, 1928
Bonhoeffer, K.F.; Reichardt, H., Zerfall von erhitztem wasserdampf in wasserstoff und freies hydroxyl, Z. Phys. Chem. Abt. A, 1928, 139, 75. [all data]

Oldenberg, 1935
Oldenberg, O., The lifetime of free hydroxyl, J. Chem. Phys., 1935, 3, 266. [all data]

Gaydon, Spokes, et al., 1960
Gaydon, A.G.; Spokes, G.N.; Suchtelen, J.V., Absorption spectra of low-pressure flames, Proc. R. Soc. London A, 1960, 256, 323. [all data]

Basco and Norrish, 1961
Basco, N.; Norrish, R.G.W., The production of vibrationally excited hydroxyl radicals under isothermal conditions by flash photolysis, Proc. R. Soc. London A, 1961, 260, 293. [all data]

Black and Porter, 1962
Black, G.; Porter, G., Vacuum ultra-violet flash photolysis of water vapour, Proc. R. Soc. London A, 1962, 266, 185. [all data]

Horne and Norrish, 1967
Horne, D.G.; Norrish, R.G.W., Rate of H-abstraction by OH from hydrocarbons, Nature (London), 1967, 215, 1373. [all data]

Moore and Broida, 1959
Moore, C.E.; Broida, H.P., OH in the solar spectrum, J. Res. Nat. Bur. Stand. Sect. A, 1959, 63, 279. [all data]

Tinti, 1968
Tinti, D.S., Absorption and emission spectra of OH and OD in solid Ne. Evidence for rotation, J. Chem. Phys., 1968, 48, 1459. [all data]

Bass and Broida, 1953
Bass, A.M.; Broida, H.P., A spectrophotometric atlas of the ²Σ⁺-²Π transition of OH, National Bureau of Standards Circular 541, Washington, D.C., 1953, 1. [all data]

Engleman, 1972
Engleman, R., Jr., Accurate wavenumbers of the A²Σ → X²Π (0, 0) and (1, 0) bands of OH and OD, J. Quant. Spectrosc. Radiat. Transfer, 1972, 12, 1347. [all data]

Nanes and Robinson, 1971
Nanes, R.; Robinson, D.W., Magnetic rotation spectra of the A²Σ⁺-X²Π_i transition of OH and OD, J. Chem. Phys., 1971, 55, 963. [all data]

Nicholls, 1956
Nicholls, R.W., The interpretation of intensity distributions in the CN violet, C₂ Swan, OH violet and O₂ Schumann-Runge band systems by use of their r-Centroids and Franck-Condon factors, Proc. Phys. Soc. London Sect. A, 1956, 69, 741. [all data]

Nicholls, Fraser, et al., 1959
Nicholls, R.W.; Fraser, P.A.; Jarmain, W.R., Transition probability parameters of molecular spectra arising from combustion processes, Combust. Flame, 1959, 3, 13. [all data]

Crosley and Lengel, 1975
Crosley, D.R.; Lengel, R.K., Relative transition probabilities and the electronic transition moment in the A-X system of OH, J. Quant. Spectrosc. Radiat. Transfer, 1975, 15, 579. [all data]

Learner, 1962
Learner, R.C.M., The influence of vibration-rotation interaction on intensities in the electronic spectra of diatomic molecules. I. The hydroxyl radical, Proc. R. Soc. London A, 1962, 269, 311. [all data]

Meinel, 1967
Meinel, H., Spektroskopischer Nachweis zweier OH-Gruppen bei nichtthermischer Anregugn, Z. Naturforsch. A, 1967, 22, 977. [all data]

Anketell and Learner, 1967
Anketell, J.; Learner, R.C.M., Vibration rotation interaction in OH and the transition moment, Proc. R. Soc. London A, 1967, 301, 355. [all data]

Veseth, 1971
Veseth, L., Corrections to the spin-orbit splitting in ²Π states of diatomic molecules, J. Mol. Spectrosc., 1971, 38, 228. [all data]

Meinel, 1950
Meinel, A.B., OH emission bands in the spectrum of the night sky. I., Astrophys. J., 1950, 111, 555. [all data]

Jones, 1955
Jones, A.V., Infra-red spectrum of the night sky near 10000 A, Nature (London), 1955, 175, 950. [all data]

Connes and Gush, 1959
Connes, M.J.; Gush, H.P., Spectroscopie du ciel nocturne dans l'infrarouge par transformation de fourier, J. Phys. Radium, 1959, 20, 915. [all data]

Kraus, 1957
Kraus, F., Uber die Anregungsbedingungen und die Intensitatsverhaltnisse der Infraroten OH-Banden, Z. Naturforsch. A, 1957, 12, 479. [all data]

Murphy, 1971
Murphy, R.E., Infrared emission of OH in the fundamental and first overtone bands, J. Chem. Phys., 1971, 54, 4852. [all data]

Acquista, Schoen, et al., 1968
Acquista, N.; Schoen, L.J.; Lide, D.R., Jr., Infrared spectrum of the matrix-isolated OH radical, J. Chem. Phys., 1968, 48, 1534. [all data]

Roux, d'Incan, et al., 1973
Roux, F.; d'Incan, J.; Cerny, D., Experimental oscillator strengths in the infrared vibration-rotation spectrum of the hydroxyl radical, Astrophys. J., 1973, 186, 1141. [all data]

Potter, Coltharp, et al., 1971
Potter, A.E., Jr.; Coltharp, R.N.; Worley, S.D., Mean radiative lifetime of vibrationally excited (v=9) hydroxyl. Rate of the reaction of vibrationally excited hydroxyl (v=9) with ozone, J. Chem. Phys., 1971, 54, 992. [all data]

Ferguson and Parkinson, 1963
Ferguson, A.F.; Parkinson, D., The hydroxyl bands in the nightglow, Planet. Space Sci., 1963, 11, 149. [all data]

d'Incan, Effantin, et al., 1971
d'Incan, J.; Effantin, C.; Roux, F., Intensites absolues et forces d'oscillateur de quelques raies des bandes de vibration-rotation 1-0 et 2-1 du radical OH, J. Quant. Spectrosc. Radiat. Transfer, 1971, 11, 1215. [all data]

Mies, 1974
Mies, F.H., Calculated vibrational transition probabilities of OH(X²Π), J. Mol. Spectrosc., 1974, 53, 150. [all data]

Heaps and Herzberg, 1952
Heaps, H.S.; Herzberg, G., Intensity distribution in the rotation-vibration spectrum of the OH molecule, Z. Phys., 1952, 133, 48. [all data]

Cashion, 1963
Cashion, K., A method for calculating vibrational transition probabilities, J. Mol. Spectrosc., 1963, 10, 182. [all data]

Ehrenstein, Townes, et al., 1959
Ehrenstein, G.; Townes, C.H.; Stevenson, M.J., Ground state Λ-doubling transitions of OH radical, Phys. Rev. Lett., 1959, 3, 40. [all data]

Radford, 1964
Radford, H.E., 18-cm Spectrum of OH, Phys. Rev. Lett., 1964, 13, 534. [all data]

ter Meulen and Dymanus, 1972
ter Meulen, J.J.; Dymanus, A., Beam-maser measurements of the ground-state transition frequencies of OH, Astrophys. J., 1972, 172, 21. [all data]

Turner, 1966
Turner, B.E., Einstein A coefficient for the λ doublet transitions of the ground state of OH, Nature (London), 1966, 212, 184-185. [all data]

Valtz and Soglasnova, 1973
Valtz, I.E.; Soglasnova, V.A., Lambda-doubling of the O¹⁷H molecule at microwave frequencies, Astrophys. Lett., 1973, 13, 23. [all data]

Powell and Lide, 1965
Powell, F.X.; Lide, D.R., Jr., Improved measurement of the electric-dipole moment of the hydroxyl radical, J. Chem. Phys., 1965, 42, 4201. [all data]

Meerts and Dymanus, 1973
Meerts, W.L.; Dymanus, A., Electric dipole moments of OH and OD by molecular beam electric resonance, Chem. Phys. Lett., 1973, 23, 45. [all data]

Barrett, 1967
Barrett, A.H., Radio observations of interstellar hydroxyl radicals, Science, 1967, 157, 881. [all data]

Robinson and McGee, 1967
Robinson, B.J.; McGee, R.X., OH molecules in the interstellar medium, Annu. Rev. Astron. Astrophys., 1967, 5, 183. [all data]

Cook, 1969
Cook, A.H., The hydroxyl molecule in interstellar space, Physica (Amsterdam), 1969, 41, 1. [all data]

ter Meulen, Meerts, et al., 1976
ter Meulen, J.J.; Meerts, W.L.; van Mierlo, G.W.M.; Dymanus, A., Observations of population inversion between the Λ-doublet states of OH, Phys. Rev. Lett., 1976, 36, 1031. [all data]

Carrington and Lucas, 1970
Carrington, A.; Lucas, J.D., Electron resonance of gaseous diatomic hydrides. I. ¹⁷O hyperfine and quadrupole interactions in OH and OD, Proc. R. Soc. London A, 1970, 314, 567. [all data]

Arnold, Whiting, et al., 1976
Arnold, J.O.; Whiting, E.E.; Sharbaugh, L.F., A nearly exact MCSCF + Cl calculation of the dissociation energy of OH, J. Chem. Phys., 1976, 64, 3251. [all data]

Notes

Go To: Top, Reaction thermochemistry data, Henry's Law data, Gas phase ion energetics data, Ion clustering data, Constants of diatomic molecules, References

Symbols used in this document:

EA	Electron affinity
IE (evaluated)	Recommended ionization energy
d(ln(k_H))/d(1/T)	Temperature dependence parameter for Henry's Law constant
k°_H	Henry's Law constant at 298.15K
Δ_rG°	Free energy of reaction at standard conditions
Δ_rH°	Enthalpy of reaction at standard conditions

Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
The National Institute of Standards and Technology (NIST) uses its best efforts to deliver a high quality copy of the Database and to verify that the data contained therein have been selected on the basis of sound scientific judgment. However, NIST makes no warranties to that effect, and NIST shall not be liable for any damage that may result from errors or omissions in the Database.
Customer support for NIST Standard Reference Data products.