deuterium hydride

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Gas phase thermochemistry data

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Quantity Value Units Method Reference Comment
ΔfH°gas0.076kcal/molReviewChase, 1998Data last reviewed in June, 1977
Quantity Value Units Method Reference Comment
S°gas,1 bar34.369cal/mol*KReviewChase, 1998Data last reviewed in June, 1977

Gas Phase Heat Capacity (Shomate Equation)

Cp° = A + B*t + C*t2 + D*t3 + E/t2
H° − H°298.15= A*t + B*t2/2 + C*t3/3 + D*t4/4 − E/t + F − H
S° = A*ln(t) + B*t + C*t2/2 + D*t3/3 − E/(2*t2) + G
    Cp = heat capacity (cal/mol*K)
    H° = standard enthalpy (kcal/mol)
    S° = standard entropy (cal/mol*K)
    t = temperature (K) / 1000.

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View table.

Temperature (K) 298. to 1000.1000. to 6000.
A 7.4689116.745450
B -1.8138601.093540
C 2.153771-0.131852
D -0.4575560.007418
E -0.011423-0.414024
F -2.126271-2.615761
G 43.7928141.66941
H 0.0764820.076482
ReferenceChase, 1998Chase, 1998
Comment Data last reviewed in June, 1977 Data last reviewed in June, 1977

Phase change data

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Data compiled by: Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director

Quantity Value Units Method Reference Comment
Ttriple16.6KN/AClusius and Weigand, 1940Uncertainty assigned by TRC = 0.2 K; see property X for dP/dT for c-l equil.

In addition to the Thermodynamics Research Center (TRC) data available from this site, much more physical and chemical property data is available from the following TRC products:

Gas phase ion energetics data

Go To: Top, Gas phase thermochemistry data, Phase change data, Constants of diatomic molecules, References, Notes

Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Data compiled as indicated in comments:
LL - Sharon G. Lias and Joel F. Liebman
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 HD+ (ion structure unspecified)

Ionization energy determinations

IE (eV) Method Reference Comment
15.44465EVALShiner, Gilligan, et al., 1993LL
15.44466EVALHuber and Herzberg, 1979LLK
15.44477 ± 0.00007STakezawa and Tanaka, 1972LLK
15.46PIDibeler, Reese, et al., 1965RDSH

Constants of diatomic molecules

Go To: Top, Gas phase thermochemistry data, Phase change data, Gas phase ion energetics data, References, Notes

Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

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

Symbols used in the table of constants
SymbolMeaning
State electronic state and / or symmetry symbol
Te minimum electronic energy (cm-1)
ωe vibrational constant – first term (cm-1)
ωexe vibrational constant – second term (cm-1)
ωeye vibrational constant – third term (cm-1)
Be rotational constant in equilibrium position (cm-1)
αe rotational constant – first term (cm-1)
γe rotation-vibration interaction constant (cm-1)
De centrifugal distortion constant (cm-1)
βe rotational constant – first term, centrifugal force (cm-1)
re internuclear distance (Å)
Trans. observed transition(s) corresponding to electronic state
ν00 position of 0-0 band (units noted in table)
Diatomic constants for HD
StateTeωeωexeωeyeBeαeγeDeβereTrans.ν00
k 3Πu 4pπ (118384.2) 2030.56 50.36 1  20.548 0.951  .0092  1.0550 k → a R 22295.24
↳Cunningham and Dieke, 1950
d 3Πu 3pπ (112717.4) 2054.59 2 49.74 3  22.810 2 4 1.020  [.0116]  1.0489 d → a R 16640.6
↳Dieke and Blue, 1935
e 3Σu+ 3pσ (107776.6) 1905.17 51.70 5  20.766 1.010  [.0089]  1.0993 e → a R 11624.6
↳Dieke, 1935
a 3Σg+ 2sσ (95947.1) 6 2308.44 53.77 7  25.685 1.099  [.0128]  .9885 (a-X) (925201.5) 6
c 3Πu 2pπNo constants of this state have yet been determined. 8
StateTeωeωexeωeyeBeαeγeDeβereTrans.ν00
b 3Σu+ 2pσ 9           a → b 
Ionization continua joining on to Rydberg series. 10
Rydberg series of rotational levels observed in low temperature absorption from X 1Σg+ (v=0) and converging to:
N=2 (v=1) of HD+J=1 (v=1) levels of npπ 1Πu+ (n=36...46) 11 12;
N=2 (v=1) of HD+ 13           R(0) lines 
↳Takezawa and Tanaka, 1972
N=1 (v=0) of HD+J=1 (v=0) levels of npπ 1Πu- (n=6...23, joining on to C, D, D', D");
StateTeωeωexeωeyeBeαeγeDeβereTrans.ν00
N=1 (v=0) of HD+ 14           Q(1) lines 
↳Takezawa and Tanaka, 1972
N=0 (v=0) of HD+J=1 (v=0) levels of npσ 1Σu+ (n=5...48, joining on to B, B', B") 12 ;
N=0 (v=0) of HD+ 15           R(0) lines 
↳Takezawa and Tanaka, 1972
B bar 1Σu+see 1H2.
↳Dabrowski and Herzberg, 1974; Chupka, Dehmer, et al., 1975
StateTeωeωexeωeyeBeαeγeDeβereTrans.ν00
D" 1Πu 5pπ 121231.2 16 2006.17 17 45.801 17  [22.865] 18 19  [0.021]  [1.0477] D" ← X R 120332.6 16
↳Monfils, 1965; Monfils, 1968
121216.3 16 2006.17 45.801  [22.144]   [0.013]  [1.0646] D" ← X R 120317.7 16
↳Monfils, 1965; Monfils, 1968
D' 1Πu 4pπ 118879.2 17 2014.91 17 47.018 0.1266 22.35 20 18 1.25 -0.05 [0.022] 20  1.06 D' ← X R 117984.7
↳Monfils, 1965; Monfils, 1968
B" 1Σu+ 4pσ 117980.4 1896.60 48.924  20.34 21 0.398 21  [0.025]  1.111 B" ← X R 117026.2
↳Monfils, 1965; Monfils, 1968
StateTeωeωexeωeyeBeαeγeDeβereTrans.ν00
M 1Σg+ [115073]    [10.4]     [1.55] M → B R 22782.5
↳Dieke and Lewis, 1937
D 1Πu 3pπ 113901.7 22 2039.13 17 48.917 23 0.2171 22.91 24 18 0.97 25  (0.012) 26  1.047 D ← X 27 R 113018.84 28
↳Monfils, 1965; Monfils, 1968
J 1Δg 3dδ (113536) [1832.8] 29         J → B V 22162.3 29
↳Dieke and Lewis, 1937
I 1Πg 3dπ (113110) 1962.14 24 58.21 30  22.36 24 1.21  [0.007]  1.059 I → B V 21786.2 31
↳Dieke and Lewis, 1937
StateTeωeωexeωeyeBeαeγeDeβereTrans.ν00
G 1Σg+ 3dσ (112843) [1879.9] 32         G → B R 21492.4
↳Dieke and Lewis, 1937
K (1Σg+) (112663) [(1981)] 33         K → B R (21363.2) 34
↳Dieke and Lewis, 1937
B' 1Σu+ 3pσ 111649.7 35 1775.2 67.66 36 30 3.66 20 37 18 1.28 37  [0.0016] 37  1.120 B' ← X 27 R 110632.58
↳Monfils, 1965; Monfils, 1968; Dabrowski and Herzberg, 1976
F 1Σg+ 2pσ2 100927.5 38 39 (1087.9) 40 (21.6) 40 41        E → B V 8901.72
↳Dieke, 1936; Dabrowski and Herzberg, 1976
StateTeωeωexeωeyeBeαeγeDeβereTrans.ν00
E 1Σg+ 2sσ 100120.4 38 39 2204.4 42 81.6 42  24.568 42 1.288 42  [0.0123]  1.0107 E,F ← X 43 R 99301.59 44
↳missing citation
C 1Πu 2pπ 100092.9 45 2119.65 53.31 46 0.656 23.522 47 1.096 48  0.0149 49 -0.00077 1.0329 C ↔ X 50 51 R 99252.86
↳Monfils, 1965; Monfils, 1968; missing citation
B 1Σu+ 2pσ 91698.3 45 1177.16 15.59 52  15.071 47 0.82 53  0.00882 -0.000505 1.2904 B ↔ X 54 51 R 90399.86
↳missing citation; missing citation
X 1Σg+ 1sσ2 0 3813.15 91.65 55  45.655 56 1.986 57  0.02605 58 -0.00054 0.74142 59  
↳Durie and Herzberg, 1960; McKellar, Goetz, et al., 1976
Pure rotation sp. 60
↳Trefler and Gush, 1968
Raman sp.
↳Stoicheff, 1957
Field- and
↳Brannon, Church, et al., 1968
collision induced sp.
↳Prasad and Reddy, 1975
Rf magn. reson. sp. 61
↳Kellogg, Rabi, et al., 1940; Ramsey, 1940

Notes

1missing note
2Refers to 3Π-; 3Π+ is strongly perturbed.
3missing note
4The Λ-type doubling is large and irregular Dieke, 1935. Breaking-off of P and R branches for v'>3 on account of predissociation Dieke and Blue, 1935.
5ωeze = +0.091.
6The energy of none of the triplet states above X 1Σg+(v=0,J=0) has not yet been experimentally established. The Te value in the table is the average of those of H2 and D2; the electronic isotopic shift is fairly large. T0 is calculated from this Te value taking account of Y'00 = 3.85. The theoretical TeC = 95950 cm-1 is based on the observed dissociation limit and De from Kolos and Wolniewicz, 1968.
7missing note
8The levels of c 3Πu+ are strongly predissociated by the b 3Σu+ state missing citation; the levels of c 3Πu- are either very weakly affected by a forbidden predissociation to b 3Σu+ Dalgarno and Wright, 1972, Takezawa and Tanaka, 1972 or decay radiatively (by magnetic dipole radiation) to the b 3Σu+ state as suggested by the lifetime measurements of missing citation, τ(v=0) = 1.02 μs missing citation independent of spin component and isotope. missing citation observed quenching of c 3Πu- in an electric field. The Stark effect is large (~ E+4 times greater than for the ground state) and has been studied experimentally by missing citation and compared with the theoretical values of missing citation.
9Repulsive, lower state of hydrogen continuum.
10Cross sections for photoionization into the various vibrational levels of HD+ and the adjoining continuum (dissociative photoionization) calculated by Itikawa, 1973, Ford, Docken, et al., 1975, observed by Berkowitz and Spohr, 1973. Photoionization near I.P. studied by Dibeler, Reese, et al., 1965.
11Except for n=2...5 (i.e. C...D") only the diffuse (preionized) members above n=35 have been observed. The corresponding v'= 0 series has not been found for n>5.
12There are strong perturbations between npσ 1Σu+ and npπ 1Πu+ similar to those in H2, but in HD they have not yet been studied in detail.
13ν = 126606.4 64 - RHD/(n+0.082)2.
14ν = 124613.3 64 - RHD/(n+0.082)2. Similar series with v'=1,2,3.
15ν = 124568.6 64 - RHD/(n-0.203)2. Similar series with v'=1
16Large J=0 splitting Monfils, 1968, Π+ above Π-.
17Average of Π+ and Π- which differ for HD much more than for H2 and D2.
18RKR potential functions Monfils, 1968, 2.
19B1(Π+)= 22.618, B1(Π-)= 22.310.
20The rotational constants refer to Π-; Π+ is perturbed (see 12); B0(Π+) = 22.289, B1(Π+) = 21.901.
21The rotational constants represent B0 and B1 only; strongly non-linear Bv curve.
22Y'00 not included. Monfils, 1968 gives ll3900.75.
23missing note
24Refers to Π-.
25missing note
26The Dv values show considerable scatter. The Hv values Monfils, 1965 are hardly significant.
27Franck-Condon factors from electron energy loss spectra in Geiger and Schmoranzer, 1969.
28Average of Π+ and Π-, extrapolated to J=0. The Λ-type doubling for J=1, v=0; ΛD= 3.52 cm-1 with Π+ above Π-.
29Referred to J=2 of 1Δ-.
30There are two dissociation limits with adjoining continua at 118665.9 and 118687.4 cm-1 corresponding to H(n=2) + D(n=1) and H(n=1) + D(n=2), respectively Herzberg, 1970. It appears Dabrowski and Herzberg, 1976 that the first limit corresponds to B 1Σu+, E , F 1Σg+. and C 1Πu, while the second corresponds to B' 1Σu+, G 1Σg+, and I 1Πu; see also Throson, 1971. The C 1Πu state, unlike H2 or D2, apparently does not have a potential maximum.
31Refers to J=1 of Π-; J=1 of Π+ lies 28.0 cm-1 higher.
32Vibrational perturbations for v>0. 30
33only fragmentary data.
34Refers to the J=1 level.
35Takes account of Y00 in the upper as well as in the lower state. For the states B, C, and B' Y'00(B) = 7.1, Y'00(C) = 3.7 and Y'00(B')= 2.0.
36ωeze = -0.65: five-level fit. All levels up to the last (v=11) have been observed.
37Five-level fit. The deviations for v>2 are large and irregular because of numerous perturbations. The Bv values of Monfils, 1965 deviate by up to l cm-1 from those of Dabrowski and Herzberg, 1976 used here. The latter are effective, non-deperturbed values. Higher Dv values show considerable irregularities because of local perturbations.
38The states E and F may be considered as forming one double-minimum state. The potential maximum is at 104480 cm-1 above X(v=0,J=0) Kolos and Wolniewicz, 1969. See also H2 66.
39Derived by extrapolation of differences between observed vibrationa1 levels Dabrowski and Herzberg, 1976 and those calculated from the double-minimum potential function of Kolos and Wolniewicz, 1969.
40From the theoretical energy levels assuming an independent (outer) potential minimum Dabrowski and Herzberg, 1976. The lowest observed level is v=1 and the observed intervals are ΔG(3/2)= 1002.6, ΔG(5/2)= 956.0, ΔG(7/2)= 916.7, respectively. Higher levels show the effects of interaction with E 1Σg+. See 38
41See HD 30.
42These constants Dieke, 1936 are from the lowest vibrational levels (v ≤ 2 of the inner minimum) neglecting the interaction with the F state; see HD 38.
43This transition, forbidden in H2 and D2, is weakly allowed in HD since the g,u symmetry is no longer rigorous.
44The 0-0 band has not been observed in VUV absorption but is obtained by adding v00(E-B) Dieke, 1936 to v00(B-X). The first observed VUV absorption band is at 100618.50 cm-1 and corresponds to the transition to the second lowest level in the outer minimum (1-0).
45Takes account of Y00 in the upper as well as in the lower state. For the states B, C, and B' Y'00(B) = 7.1, Y'00(C) = 3.7 and Y'00(B')= 2.0. Note, that the Te value for C 1Πu and v00(C-X) exclude the term -BΛ2 of the rotational energy expression.
46ωeze = -0.033; eight-level fit. Only Π- levels have been included in the fit since many of the Π+ levels are strongly perturbed by B 1Σu+. After deperturbation the Π+ levels agree fairly well with corresponding Π- levels. Levels up to v=15 have been observed; this level is within 42 cm-1 of the lower of the two dissociation limits, see HD 30.
47RKR potential functions Monfils, 1968, 2.
48αv= +0.037(v+1/2)2 - 0.0053(v+1/2)3, eight-level fit of Bv values of Π-.
49missing note
50Selective enhancement of v'=0 of C 1Π in Ar-H2 mixtures studied by Takezawa, Innes, et al., 1967. Franck-Condon factors from electron energy loss spectra Geiger and Schmoranzer, 1969.
51Theoretical band oscillator strengths, transition probabilities and photodissociation cross sections in Allison and Dalgarno, 1969.
52ωexe= +0.427(v+1/2)3 - 0.029(v+1/2)4 + 0.0008(v+1/2)5, fit of first eight levels; all levels up to v=43 have been observed Dabrowski and Herzberg, 1976.
53αv= +0.116(v+1/2)2 - 0.0216(v+1/2)3 + 0.0024(v+1/2)4 - 0.00011(v+1/2)5; eight-level fit, see HD 52.
54Selective enhancement of v'=3 and 5 of B 1Σu+ in Ar-H2 mixtures studied by Takezawa, Innes, et al., 1967. Franck-Condon factors from electron energy loss spectra Geiger and Schmoranzer, 1969, from fluorescence spectra Fink, Akins, et al., 1969: large vibration-rotation interaction effects Fink, Akins, et al., 1969, Allison, 1970, Becker and Fink, 1971.
55ωexe= +0.723(v+1/2)3 - 0.0133(v+1/2)4 + 0.00165(v+1/2)5; ten- level fit. The zero-point energy (Y00 = 6.51 included) is 1890.26. All levels up to the last, v=17, have been observed. This level lies 5.1 cm-1 below the dissociation limit.
56Theoretical values for all bound and quasibound levels in the ground state of HD are given by LeRoy, 1971.
57av= +0.0315(v+1/2)2 - 0.00221(v+1/2)3; ten-level fit Dabrowski and Herzberg, 1976. Somewhat more accurate Bv values than used by Dabrowski and Herzberg, 1976 for v = 0....6 have been derived from the rotation-vibration spectrum by McKellar, Goetz, et al., 1976.
58Hv = 2.2E-5 has been assumed.
59Rotation-vibration sp. 65
60From the rotation spectrum Trefler and Gush, 1968 have obtained a dipole moment in the lowest vibrational level of 5.8E-4 D, or, after a small correction for rotation Karl, 1968, 5.5E-4 D; see also Bunker, 1973. Predicted IR emissivities in the pure rotation lines Dalgarno and Wright, 1972.
61Rotational magnetic moment for J=1 0.662 μN Ramsey, 1940, Ramsey, 1956.
62D00= 36406.2 cm-1 Herzberg, 1970. From ab initio calculations Kolos and Wolniewicz, 1968, 2 obtain D00= 36405.5 cm-1 Kolos and Wolniewicz, 1968, 2, Bunker, 1979, including a very small non-adiabatic correction by Bunker, 1979.
63From the Rydberg series of Takezawa and Tanaka, 1972 and corrected for pressure shift, see Herzberg and Jungen, 1972.
64The Rydberg limits are from Takezawa and Tanaka, 1972 but corrected for pressure shift; see Herzberg and Jungen, 1972. The quantum defects, given only for the Q(1) series by Takezawa and Tanaka, 1972, are taken from the corresponding series in H2 Herzberg and Jungen, 1972.
65The transition moments for the 1-0, 2-0, 3-0, 4-0 and 5-0 vibration bands are observed to be 5.0, 1.9, 0.80, 0.42 and 0.21E-5 D, respectively McKellar, 1973, Bejar and Gush, 1974, McKellar, 1974, McKellar, Goetz, et al., 1976; for theoretical discussions see Bunker, 1973, Bunker, 1976, Wolniewicz, 1975. In addition to the electric dipole infrared spectrum one line of the quadrupole component of the fundamental, S(0), has been observed McKellar, 1974.
66missing note

References

Go To: Top, Gas phase thermochemistry data, Phase change data, Gas phase ion energetics data, Constants of diatomic molecules, Notes

Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Chase, 1998
Chase, M.W., Jr., NIST-JANAF Themochemical Tables, Fourth Edition, J. Phys. Chem. Ref. Data, Monograph 9, 1998, 1-1951. [all data]

Clusius and Weigand, 1940
Clusius, K.; Weigand, K., Melting Curves of the Gases A, Kr, Xe, CH4, CH3D, CD4, C2H4, C2H6, COS, and PH3 to 200 Atmospheres Pressure. The Chane of Volume on Melting, Z. Phys. Chem., Abt. B, 1940, 46, 1-37. [all data]

Shiner, Gilligan, et al., 1993
Shiner, D.; Gilligan, J.M.; Cook, B.M.; Lichten, W., H2, D2, and HD ionization potentials by accurate calibration of several iodine lines, Phys. Rev. A, 1993, 47, 4042. [all data]

Huber and Herzberg, 1979
Huber, K.P.; Herzberg, G., Molecular Spectra and Molecular Structure. IV. Constants of Diatomic Molecules,, Van Nostrand Reinhold Co., 1979, ,1. [all data]

Takezawa and Tanaka, 1972
Takezawa, S.; Tanaka, Y., Absorption spectrum of HD in the vacuum-uv region. Rydberg states and ionization energy, J. Chem. Phys., 1972, 56, 6125. [all data]

Dibeler, Reese, et al., 1965
Dibeler, V.H.; Reese, R.M.; Krauss, M., Massspectrometric study of photoionization. II. H2, HD, and D2, J. Chem. Phys., 1965, 42, 2045. [all data]

Cunningham and Dieke, 1950
Cunningham; Dieke, Johns Hopkins University, Department of Physics, Rpt. NYO-692, 1950, 1. [all data]

Dieke and Blue, 1935
Dieke, G.H.; Blue, R.W., The Fulcher bands of HD and D2, Phys. Rev., 1935, 47, 261. [all data]

Dieke, 1935
Dieke, G.H., The 3p3Σ→2s3Σ bands of HD and D2, Phys. Rev., 1935, 48, 606. [all data]

Dabrowski and Herzberg, 1974
Dabrowski, I.; Herzberg, G., The absorption spectrum of D2 from 1100 to 840 Å, Can. J. Phys., 1974, 52, 1110. [all data]

Chupka, Dehmer, et al., 1975
Chupka, W.A.; Dehmer, P.M.; Jivery, W.T., High resolution photoionization study of ion-pair formation in H2, HD, and D2, J. Chem. Phys., 1975, 63, 3929. [all data]

Monfils, 1965
Monfils, A., The absorption spectra of the molecules H2, HD, and D2. Part VI. Rotational analysis of the B', B", D, D', and D" states, J. Mol. Spectrosc., 1965, 15, 265. [all data]

Monfils, 1968
Monfils, A., Absorption spectra of molecules H2, HD, and D2. VII. Vibrational constants of the B, B', B", C, D, D', and D" states, J. Mol. Spectrosc., 1968, 25, 513. [all data]

Dieke and Lewis, 1937
Dieke, G.H.; Lewis, M.N., Bands of HD and D2 ending on the 2p1Σ state, Phys. Rev., 1937, 52, 100. [all data]

Dabrowski and Herzberg, 1976
Dabrowski, I.; Herzberg, G., The absorption and emission spectra of HD in the vacuum ultraviolet, Can. J. Phys., 1976, 54, 525. [all data]

Dieke, 1936
Dieke, G.H., The 2s1Σ→2p1Σ bands of the hydrogen molecule, Phys. Rev., 1936, 50, 797. [all data]

Durie and Herzberg, 1960
Durie, R.A.; Herzberg, G., Forbidden transitions in diatomic molecules. V. The rotation-vibration spectrum of the hydrogen-deuteride (HD) molecule, Can. J. Phys., 1960, 38, 806. [all data]

McKellar, Goetz, et al., 1976
McKellar, A.R.W.; Goetz, W.; Ramsay, D.A., The rotation-vibration spectrum of HD: wavelength and intensity measurements of the 3-0, 4-0, 5-0, and 6-0 electric dipole bands, Astrophys. J., 1976, 207, 663. [all data]

Trefler and Gush, 1968
Trefler, M.; Gush, H.P., Electric dipole moment of HD, Phys. Rev. Lett., 1968, 20, 703. [all data]

Stoicheff, 1957
Stoicheff, B.P., High resolution Raman spectroscopy of gases. IX. Spectra of H2, HD, and D2, Can. J. Phys., 1957, 35, 730. [all data]

Brannon, Church, et al., 1968
Brannon, P.J.; Church, C.H.; Peters, C.W., Electric field induced spectra of molecular hydrogen, deuterium and deuterium hydride, J. Mol. Spectrosc., 1968, 27, 44. [all data]

Prasad and Reddy, 1975
Prasad, R.D.G.; Reddy, S.P., Infrared absorption spectra of gaseous HD. I. Collision-induced fundamental band of HD in the pure gas and HD-He mixtures at room temperature, J. Chem. Phys., 1975, 62, 3582. [all data]

Kellogg, Rabi, et al., 1940
Kellogg, J.M.B.; Rabi, I.I.; Ramsey, N.F., Jr.; Zacharias, J.R., An electrical quadrupole moment of the deuteron. The radiofrequency spectra of HD and D2 molecules in a magnetic field, Phys. Rev., 1940, 57, 677. [all data]

Ramsey, 1940
Ramsey, N.F., Jr., The rotational magnetic moments of H2, D2, and HD molecules. The rotational radiofrequency spectra of H2, D2, and HD in magnetic fields, Phys. Rev., 1940, 58, 226. [all data]

Kolos and Wolniewicz, 1968
Kolos, W.; Wolniewicz, L., Vibrational and rotational energies of the B1Σu+, C1Πu, C1Πu, and a3Σg+ states of the hydrogen molecule, J. Chem. Phys., 1968, 48, 3672. [all data]

Dalgarno and Wright, 1972
Dalgarno, A.; Wright, E.L., Infrared emissivities of H2 and HD, Astrophys. J., 1972, 174, 49. [all data]

Itikawa, 1973
Itikawa, Y., Calculation of the cross sections for the photoionization of H2 and D2 into different vibrational states of the ion, J. Electron Spectrosc. Relat. Phenom., 1973, 2, 125. [all data]

Ford, Docken, et al., 1975
Ford, A.L.; Docken, K.K.; Dalgarno, A., Cross sections for photoionization of vibrationally excited molecular hydrogen, Astrophys. J., 1975, 200, 788. [all data]

Berkowitz and Spohr, 1973
Berkowitz, J.; Spohr, R., Comparison of photoelectron intensities and Franck-Condon factors in the photoionization of H2, HD and D2, J. Electron Spectrosc. Relat. Phenom., 1973, 2, 143. [all data]

Monfils, 1968, 2
Monfils, A., Calcul des fonctions potentielles de divers etats signulets excites des molecules H2, HD et D2, Bull. Cl. Sci. Acad. R. Belg., 1968, 54, 44. [all data]

Geiger and Schmoranzer, 1969
Geiger, J.; Schmoranzer, H., Electronic and vibrational transition probabilities of isotopic hydrogen molecules H2, HD, and D2 based on electron energy loss spectra, J. Mol. Spectrosc., 1969, 32, 39. [all data]

Herzberg, 1970
Herzberg, G., The dissociation energy of the hydrogen molecule, J.Mol. Spectry., 1970, 33, 147. [all data]

Throson, 1971
Throson, W.R., Absorption edge doubling in the HD dissociation continuum, J. Mol. Spectrosc., 1971, 37, 199. [all data]

Kolos and Wolniewicz, 1969
Kolos, W.; Wolniewicz, L., Theoretical investigation of the lowest double-minimum state E, F1Σg+ of the hydrogen molecule, J. Chem. Phys., 1969, 50, 3228. [all data]

Takezawa, Innes, et al., 1967
Takezawa, S.; Innes, F.R.; Tanaka, Y., Selective enhancement in hydrogenlike molecules with the rare gases. II. HD and D2 with Ar and Kr, J. Chem. Phys., 1967, 46, 4555. [all data]

Allison and Dalgarno, 1969
Allison, A.C.; Dalgarno, A., Photodissociation of vibrationally excited H2, HD, and D2 by absorption into the continua of the Lyman and Werner systems, At. Data, 1969, 1, 91. [all data]

Fink, Akins, et al., 1969
Fink, E.H.; Akins, D.L.; Moore, C.B., Relative line intensities in the Lyman bands of HD, Chem. Phys. Lett., 1969, 4, 283. [all data]

Allison, 1970
Allison, A.C., Note on the Lyman system of HD, J. Chem. Phys., 1970, 52, 4909. [all data]

Becker and Fink, 1971
Becker, K.H.; Fink, E.H., Relative line intensities in the Lyman bands of HD and H2, Z. Naturforsch. A, 1971, 26, 319. [all data]

LeRoy, 1971
LeRoy, R.J., Eigenvalues and certain expectation values for all bound and quasibound levels of ground-state (X1Σg+)H2, HD, and D2, J. Chem. Phys., 1971, 54, 5433. [all data]

Karl, 1968
Karl, G., On the electric dipole moment of HD, Can. J. Phys., 1968, 46, 1973. [all data]

Bunker, 1973
Bunker, P.R., Forbidden transitions in homopolar isotopically unsymmetric diatomic molecules and the dipole moment of HD, J. Mol. Spectrosc., 1973, 46, 119. [all data]

Ramsey, 1956
Ramsey, Molecular Beams, Clarendon Press, Oxford, 1956, 239. [all data]

Kolos and Wolniewicz, 1968, 2
Kolos, W.; Wolniewicz, L., Improved theoretical ground-state energy of the hydrogen molecule, J. Chem. Phys., 1968, 49, 404. [all data]

Bunker, 1979
Bunker, Unpublished cited in Huber and Herzberg, 1979, 2, 1979, 261. [all data]

Herzberg and Jungen, 1972
Herzberg, G.; Jungen, Ch., Rydberg series and ionization potential of the H2 molecule, J. Mol. Spectrosc., 1972, 41, 425. [all data]

McKellar, 1973
McKellar, A.R.W., Intensities and the Fano line shape in the infrared spectrum of HD, Can. J. Phys., 1973, 51, 389. [all data]

Bejar and Gush, 1974
Bejar, J.; Gush, H.P., Fundamental absorption band of HD, Can. J. Phys., 1974, 52, 1669. [all data]

McKellar, 1974
McKellar, A.R.W., Intensities of the dipole and quadrupole rotation-vibration spectra of HD, Can. J. Phys., 1974, 52, 1144. [all data]

Bunker, 1976
Bunker, P.R., The rotational dependence of the intensities in the fundamental and overtone bands of HD, J. Mol. Spectrosc., 1976, 61, 319. [all data]

Wolniewicz, 1975
Wolniewicz, L., On the computation of dipole transitions in the HD molecule, Can. J. Phys., 1975, 53, 1207. [all data]

Huber and Herzberg, 1979, 2
Huber, K.P.; Herzberg, G., Molecular Spectra and Molecular Structure. IV. Constants of Diatomic Molecules, Van Nostrand Reinhold Company, New York, 1979, 716. [all data]

Notes

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