Aluminum monoxide
- Formula: AlO
- Molecular weight: 42.9809
- IUPAC Standard InChIKey: AIRCTMFFNKZQPN-UHFFFAOYSA-N
- CAS Registry Number: 14457-64-8
- Chemical structure:
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Gas phase thermochemistry data
Go To: Top, Gas phase ion energetics 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.
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔfH°gas | 16.00 | kcal/mol | Review | Chase, 1998 | Data last reviewed in December, 1979 |
Quantity | Value | Units | Method | Reference | Comment |
S°gas,1 bar | 52.182 | cal/mol*K | Review | Chase, 1998 | Data last reviewed in December, 1979 |
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.
View plot Requires a JavaScript / HTML 5 canvas capable browser.
Temperature (K) | 298. to 2000. | 2000. to 6000. |
---|---|---|
A | 8.493241 | 17.85690 |
B | -0.943590 | -2.253071 |
C | 1.836680 | 0.176814 |
D | -0.388824 | 0.002634 |
E | -0.088778 | -13.23950 |
F | 13.19270 | -6.630830 |
G | 62.16479 | 58.92431 |
H | 16.00000 | 16.00000 |
Reference | Chase, 1998 | Chase, 1998 |
Comment | Data last reviewed in December, 1979 | Data last reviewed in December, 1979 |
Gas phase ion energetics data
Go To: Top, Gas phase thermochemistry 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:
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 AlO+ (ion structure unspecified)
Ionization energy determinations
IE (eV) | Method | Reference | Comment |
---|---|---|---|
9.46 ± 0.06 | END | Armentrout, Halle, et al., 1982 | LBLHLM |
9.5 ± 0.5 | EI | Murad and Hildenbrand, 1980 | LLK |
9.5 ± 0.2 | EI | Ho and Burns, 1980 | LLK |
9.5 | EI | Hildenbrand, 1977 | LLK |
9.9 ± 0.5 | EI | Smoes, Drowart, et al., 1976 | LLK |
10. ± 1. | EI | Paule, 1976 | LLK |
9.53 ± 0.15 | EI | Hildenbrand, 1973 | LLK |
10. ± 1. | EI | Farber, Uy, et al., 1972 | LLK |
10. ± 1. | EI | Farber, Srivastava, et al., 1972 | LLK |
9. ± 1. | EI | Farber, Srivastava, et al., 1971 | LLK |
9.5 ± 0.5 | EI | Drowart, DeMaria, et al., 1960 | RDSH |
Constants of diatomic molecules
Go To: Top, Gas phase thermochemistry 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
Data collected through December, 1975
Symbol | Meaning |
---|---|
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) |
State | Te | ωe | ωexe | ωeye | Be | αe | γe | De | βe | re | Trans. | ν00 |
---|---|---|---|---|---|---|---|---|---|---|---|---|
F 2Σ+ | [47677.3] | [0.5088] | [2.15E-6] | [1.8164] | F → A R | 41843.52 Z | ||||||
↳missing citation | ||||||||||||
41972.36 Z | ||||||||||||
↳missing citation | ||||||||||||
E 2Δi | 45562 1 | (503) | [0.4951] | [1.9E-6] | [1.8444] | E ↔ A R | 39979.81 Z | |||||
↳Coheur and Rosen, 1941; Tyte, 1967; missing citation; missing citation | ||||||||||||
45431 | (503) | [0.4919] | [1.9E-6] | [1.8444] | E ↔ A R | 39977.17 Z | ||||||
↳Coheur and Rosen, 1941; Tyte, 1967; missing citation; missing citation | ||||||||||||
State | Te | ωe | ωexe | ωeye | Be | αe | γe | De | βe | re | Trans. | ν00 |
D 2 Σ+ 4 | 40266.7 | 819.6 Z | 5.8 | 0.5652 2 | 0.0046 | -0.00005 | 1.10E-6 | 1.7234 | D → B 3 R | (19552) | ||
↳Prasad and Narayan, 1969 | ||||||||||||
D ↔ A V | 34841.23 Z | |||||||||||
↳Coheur and Rosen, 1941; Tyte, 1967; missing citation | ||||||||||||
D ↔ A V | 34970.09 Z | |||||||||||
↳Coheur and Rosen, 1941; Tyte, 1967; missing citation | ||||||||||||
D ↔ X R | 40187.2 Z | |||||||||||
↳missing citation; Tyte, 1967; Singh and Narasimham, 1969; missing citation; Singh, 1972; Tawde and Tulasigeri, 1972; Singh and Saksena, 1973 | ||||||||||||
State | Te | ωe | ωexe | ωeye | Be | αe | γe | De | βe | re | Trans. | ν00 |
C 2Πr 4 | 33153 | 856 H | 6 | 5 | (C → B) 6 RV | (12457) | ||||||
↳Goodlett and Innes, 1959; missing citation | ||||||||||||
33079 | 6 | 5 | (C → B) 6 RV | (12383) | ||||||||
↳Goodlett and Innes, 1959; missing citation | ||||||||||||
C ↔ X R | 33092 | |||||||||||
↳Coheur and Rosen, 1941; missing citation; Becart and Declerck, 1960; Tyte, 1967; missing citation; McDonald, Innes, et al., 1969 | ||||||||||||
C ↔ X R | 33018 | |||||||||||
↳Coheur and Rosen, 1941; missing citation; Becart and Declerck, 1960; Tyte, 1967; missing citation; McDonald, Innes, et al., 1969 | ||||||||||||
State | Te | ωe | ωexe | ωeye | Be | αe | γe | De | βe | re | Trans. | ν00 |
B 2Σ+ 9 | 20688.95 | 870.05 Z | 3.52 | 0.60408 7 | 0.00447 | 1.16E-6 | 1.6670 | B ↔ X 8 R | 20635.22 Z | |||
↳Pomeroy, 1927; missing citation; missing citation; missing citation; missing citation; Shimauchi, 1958; Loginov, 1959; Nicholls, 1962; Tawde and Korwar, 1962; Becart and Mahieu, 1963; missing citation; missing citation; Sharma, 1967; Tyte, 1967; Prasad and Narayan, 1969; missing citation; Knight and Weltner, 1971; Gole and Zare, 1972; Liszt and Smith, 1972 | ||||||||||||
A 2Πi | 5470.6 10 | 728.5 H | 4.15 | [0.5374] 11 12 | [1.1E-6] | [1.7708] | A ↔ X 13 R | 5346 | ||||
↳Knight and Weltner, 1971; Rosenwaks, Steele, et al., 1975 | ||||||||||||
5341.7 | 728.5 H | 4.15 | [0.5333] 12 | [1.1E-6] | [1.7708] | A ↔ X 13 R | 5217 | |||||
↳Knight and Weltner, 1971; Rosenwaks, Steele, et al., 1975 | ||||||||||||
X 2Σ+ 9 | 0 | 979.23 Z | 6.97 | 0.64136 14 15 | 0.00580 | 1.08E-6 16 | 1.6179 17 |
Notes
1 | A0 = -64.8. |
2 | Spin splitting constant γ = +0.0060 Mahieu, Jacquinot, et al., 1975. |
3 | Uncertain observation. See also Schamps, 1973. |
4 | Theoretical calculations concerning these states in Schamps, 1973. |
5 | Rotational constants in Goodlett and Innes, 1959 are unreliable; see McDonald, Innes, et al., 1969. Perturbations. |
6 | missing note |
7 | Spin splitting constant γ = -0.0074 Mahieu, Jacquinot, et al., 1975, disagreeing with +0.020 in Lagerqvist, Nilsson, et al., 1956, Goodlett and Innes, 1959. |
8 | Radiative lifetime τ=102 ns Dagdigian, Cruse, et al., 1975, τ=127 ns Johnson, Capelle, et al., 1972. The corresponding B-X oscillator strengths, f00 = 0.027 and f00 = 0.021, resp., are compared in Dagdigian, Cruse, et al., 1975 with additional experimental and theoretical Michels, 1972, Yoshimine, McLean, et al., 1973 results. Relative b. strengths Linton and Nicholls, 1969. |
9 | Theoretica1 calculations concerning these states Yoshimine, McLean, et al., 1973, Das, Janis, et al., 1974. |
10 | A0 = -127.8. |
11 | Λ-type doubling. Δvfe = -0.0128(J+1/2). |
12 | Slightly different constants in Singh, 1973. |
13 | Theoretica1 oscillator strengths in Yoshimine, McLean, et al., 1973. |
14 | Spin splitting constant γ0 = +0.0050 Mahieu, Jacquinot, et al., 1975, smaller than earlier values Lagerqvist, Nilsson, et al., 1956, Goodlett and Innes, 1959 and in better agreement with ESR Knight and Weltner, 1971 and theoretical Mahieu, Jacquinot, et al., 1975 results. |
15 | Perturbations Rosen, 1945, Shimauchi, 1958 by A 2Πi McDonald and Innes, 1969. |
16 | missing note |
17 | IR 21 and ESR 22 sp. |
18 | Lower limit from the laser fluorescence study of AlO formed in the reaction Al+O2 Dagdigian, Cruse, et al., 1975, upper limit from the re-interpretation McDonald and Innes, 1969, Drowart, 1973 of the long-wavelength limit of an absorption continuum Tyte, 1967. Good agreement with the most recent mass-spectrometric results Farber, Srivastava, et al., 1972, Hildenbrand, 1973; slightly lower value by flame photometry Frank and Krauss, 1974. Further references reviewed in Dagdigian, Cruse, et al., 1975. |
19 | Electron impact appearance potential Drowart, DeMaria, et al., 1960, Burns, 1966, Hildenbrand, 1973. |
20 | Uncertain identification Tyte, 1964. See also Schamps, 1973. |
21 | Absorption f-number for the IR fundamental band 0.000033 Sulzmann, 1975. Theoretical values in Yoshimine, McLean, et al., 1973, Das, Janis, et al., 1974, Sulzmann, 1975. |
22 | In rare gas matrices at 4 K Knight and Weltner, 1971. |
References
Go To: Top, Gas phase thermochemistry 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]
Armentrout, Halle, et al., 1982
Armentrout, P.B.; Halle, L.F.; Beauchamp, J.L.,
Reaction of Cr+, Mn+, Fe+, Co+, and Ni+ with O2 and N2O. Examination of the translational energy dependence of the cross sections of endothermic reactions,
J. Chem. Phys., 1982, 76, 2449. [all data]
Murad and Hildenbrand, 1980
Murad, E.; Hildenbrand, D.L.,
Dissociation energies of GdO, HoO, ErO, TmO, and LuO. Correlation of results for the lanthanide monoxide series,
J. Chem. Phys., 1980, 73, 4005. [all data]
Ho and Burns, 1980
Ho, P.; Burns, R.P.,
A mass spectrometric study of the AlO2 molecule,
High Temp. Sci., 1980, 12, 31. [all data]
Hildenbrand, 1977
Hildenbrand, D.L.,
Dissociation energy of samarium monoxide and its relation to that of europium monoxide,
Chem. Phys. Lett., 1977, 48, 340. [all data]
Smoes, Drowart, et al., 1976
Smoes, S.; Drowart, J.; Myers, C.E.,
Determination of the atomization energies of the molecules TaO(g) TaO2(g) by the mass-spectrometric Knudsen-cell method,
J. Chem. Thermodyn., 1976, 8, 225. [all data]
Paule, 1976
Paule, R.C.,
Mass spectrometric studies of Al2O3 vaporization processes,
High Temp. Sci., 1976, 8, 257. [all data]
Hildenbrand, 1973
Hildenbrand, D.L.,
Dissociation energies of the molecules AlO and Al2O,
Chem. Phys. Lett., 1973, 20, 127. [all data]
Farber, Uy, et al., 1972
Farber, M.; Uy, O.M.; Srivastava, R.D.,
Effusion-mass spectrometric determination of the heats of formation of the gaseous molecules V4O10, V4O8, VO2, and VO,
J. Chem. Phys., 1972, 56, 5312. [all data]
Farber, Srivastava, et al., 1972
Farber, M.; Srivastava, R.D.; Uy, O.M.,
Mass spectrometric determination of the thermodynamic properties of the vapour species from alumina,
J. Chem. Soc. Faraday Trans. 1, 1972, 68, 249. [all data]
Farber, Srivastava, et al., 1971
Farber, M.; Srivastava, R.D.; Uy, O.M.,
Mass spectrometric determination of the heat of formation of the AlO2 molecule,
J. Chem. Phys., 1971, 55, 4142. [all data]
Drowart, DeMaria, et al., 1960
Drowart, J.; DeMaria, G.; Burns, R.P.; Inghram, M.G.,
Thermodynamic study of Al2O3 using a mass spectrometer,
J. Chem. Phys., 1960, 32, 1366. [all data]
Coheur and Rosen, 1941
Coheur, F.P.; Rosen, B.,
Le spectre de bandes de l'oxyde d'aluminium,
Bull. Soc. R. Sci. Liege, 1941, 10, 405. [all data]
Tyte, 1967
Tyte, D.C.,
The dissociation energy of aluminium monoxide,
Proc. Phys. Soc. London, 1967, 92, 1134. [all data]
Prasad and Narayan, 1969
Prasad, S.C.; Narayan, M.K.,
New bands of AlO in the visible region,
Indian J. Pure Appl. Phys., 1969, 7, 413. [all data]
Singh and Narasimham, 1969
Singh, M.; Narasimham, N.A.,
Isotope shift studies of the visible and ultra-violet bands of AlO,
J. Phys. B:, 1969, 2, 119. [all data]
Singh, 1972
Singh, G.C.,
Morse Franck-Condon factors and r-centroids for some bands of AlO(C2Σ+-X2Σ+), AuBe(A1/2-X2Σ+) and BiO(B4Σ+-X2Π1/2) systems,
J. Quant. Spectrosc. Radiat. Transfer, 1972, 12, 1343. [all data]
Tawde and Tulasigeri, 1972
Tawde, N.R.; Tulasigeri, V.G.,
Franck-Condon factors and r centroids of the 2Σ+-x2Σ+ band system of AlO using RKR potentials,
J. Phys. B:, 1972, 5, 1681. [all data]
Singh and Saksena, 1973
Singh, M.; Saksena, M.D.,
The D2Σ+-X2Σ+ system of AlO,
Proc. Indian Acad. Sci. Sect. A, 1973, 77, 139. [all data]
Goodlett and Innes, 1959
Goodlett, V.W.; Innes, K.K.,
Hollow-Cathode emission of the AlO spectrum,
Nature (London), 1959, 183, 243. [all data]
Becart and Declerck, 1960
Becart, M.; Declerck, F.,
Spectre de bandes de l'oxyde d'aluminium,
Compt. Rend., 1960, 251, 2153. [all data]
McDonald, Innes, et al., 1969
McDonald, J.K.; Innes, K.K.; Goodlett, V.W.; Tolbert, T.W.,
A regular 2Π state of the AlO molecule,
J. Mol. Spectrosc., 1969, 32, 511. [all data]
Pomeroy, 1927
Pomeroy, W.C.,
The quantum analysis of the band spectrum of aluminium oxide (λ5200-λ4650),
Phys. Rev., 1927, 29, 59. [all data]
Shimauchi, 1958
Shimauchi, M.,
Arc spectra of pure aluminum in various gases,
Sci. Light (Tokyo), 1958, 7, 101. [all data]
Loginov, 1959
Loginov, V.A.,
Production of the absorption spectrum of AlO by the method of electrically exploding a wire in air at atmospheric pressure,
Opt. Spectrosc. Engl. Transl., 1959, 6, 67, In original 111. [all data]
Nicholls, 1962
Nicholls, R.W.,
Franck-Condon factors to high vibrational quantum numbers II: SiO, MgO, SrO, AlO, VO, NO,
J. Res. Nat. Bur. Stand. Sect. A, 1962, 66, 227. [all data]
Tawde and Korwar, 1962
Tawde, N.R.; Korwar, V.M.,
Franck-Condon factors and r-centroids for the aluminium monoxide A2Σ+ - X2Σ+ band system,
Proc. Phys. Soc. London, 1962, 80, 794. [all data]
Becart and Mahieu, 1963
Becart, M.; Mahieu, J.-M.,
Spectre de bandes de l'oxyde d'aluminium,
Compt. Rend., 1963, 256, 5533. [all data]
Sharma, 1967
Sharma, A.,
The true potential energy curves of X2Σ and A2Σ states of the AlO molecule,
J. Quant. Spectrosc. Radiat. Transfer, 1967, 7, 283. [all data]
Knight and Weltner, 1971
Knight, L.B., Jr.; Weltner, W., Jr.,
ESR and optical spectroscopy of the A1O molecule at 4°K; observation of an Al complex and its interaction with krypton,
J. Chem. Phys., 1971, 55, 5066. [all data]
Gole and Zare, 1972
Gole, J.L.; Zare, R.N.,
Determination of D00(AlO) from crossed-beam chemiluminescence of Al + O3,
J. Chem. Phys., 1972, 57, 5331. [all data]
Liszt and Smith, 1972
Liszt, H.S.; Smith, W.H.,
RKR Franck-Condon factors for blue and ultraviolet transitions of some molecules of astrophysical interest and some comments on the interstellar abundance of CH, CH+, and SiH,
J. Quant. Spectrosc. Radiat. Transfer, 1972, 12, 947. [all data]
Rosenwaks, Steele, et al., 1975
Rosenwaks, S.; Steele, R.E.; Broida, H.P.,
Chemiluminescence of AlO,
J. Chem. Phys., 1975, 63, 1963. [all data]
Mahieu, Jacquinot, et al., 1975
Mahieu, J.M.; Jacquinot, D.; Schamps, J.; Hall, J.A.,
Spin doubling in the observed 2Σ+ states of AlO,
J. Phys. B:, 1975, 8, 308. [all data]
Schamps, 1973
Schamps, J.,
The energy spectrum of aluminium monoxide,
Chem. Phys., 1973, 2, 352. [all data]
Lagerqvist, Nilsson, et al., 1956
Lagerqvist, A.; Nilsson, N.E.L.; Barrow, R.F.,
On a supposed predissociation in the spectrum of AlO,
Proc. Phys. Soc. London Sect. A, 1956, 69, 356. [all data]
Dagdigian, Cruse, et al., 1975
Dagdigian, P.J.; Cruse, H.W.; Zare, R.N.,
Laser fluorescence study of AlO formed in the reaction Al + O2: product state distribution, dissociation energy, and radiative lifetime,
J. Chem. Phys., 1975, 62, 1824. [all data]
Johnson, Capelle, et al., 1972
Johnson, S.E.; Capelle, G.; Broida, H.P.,
Laser excited fluorescence and radiative lifetimes of AlO (B2Σ+ - X2Σ+),
J. Chem. Phys., 1972, 56, 663. [all data]
Michels, 1972
Michels, H.H.,
Ab initio calculation of the B2Σ+-X2+ oscillator strengths in A1O,
J. Chem. Phys., 1972, 56, 665. [all data]
Yoshimine, McLean, et al., 1973
Yoshimine, M.; McLean, A.D.; Liu, B.,
Band strengths for electric dipole transitions from ab initio computation: LiO (X2Π-X2Π, (A2Σ+-A2Σ+), (X2Π-A2Σ+); AlO (X2Σ+-X2Σ+), (A2Π-A2Π), (X2Σ+-A2Π), (B2Σ+-B2Σ+), (X2Σ+-B2Σ+),
J. Chem. Phys., 1973, 58, 4412. [all data]
Linton and Nicholls, 1969
Linton, C.; Nicholls, R.W.,
Relative band strengths for the AlO blue-green system,
J. Quant. Spectrosc. Radiat. Transfer, 1969, 9, 1. [all data]
Das, Janis, et al., 1974
Das, G.; Janis, T.; Wahl, A.C.,
Ground and excited states of the diatoms CN and A1O,
J. Chem. Phys., 1974, 61, 1274. [all data]
Singh, 1973
Singh, M.,
A new electronic transition F2Σ+-A2Πi of AlO,
J. Phys. B:, 1973, 6, 521. [all data]
Rosen, 1945
Rosen, B.,
Special cases of predissociation,
Phys. Rev., 1945, 68, 124. [all data]
McDonald and Innes, 1969
McDonald, J.K.; Innes, K.K.,
A low-lying excited electronic state of the AlO molecule and the ground-state dissociation energy,
J. Mol. Spectrosc., 1969, 32, 501. [all data]
Drowart, 1973
Drowart,
Private communication cited in Huber and Herzberg, 1979, 1973, 31. [all data]
Frank and Krauss, 1974
Frank, P.; Krauss, L.,
Spektroskopische Bestimmung der Dissoziationsenergie von AlO aus Gleichgewichtsmessungen in Flammen,
Z. Naturforsch. A, 1974, 29, 742. [all data]
Burns, 1966
Burns, R.P.,
Systematics of the evaporation coefficient Al2O3, Ga2O3, In2O3,
J. Chem. Phys., 1966, 44, 3307. [all data]
Tyte, 1964
Tyte, D.C.,
Red (B2Π-A2Σ) band system of aluminium monoxide,
Nature (London), 1964, 202, 383. [all data]
Sulzmann, 1975
Sulzmann, K.G.P.,
Shock-tube measurements of the f-number for the fundamental vibration-rotation bands of AlO in the X2Σ+ electronic ground-state,
J. Quant. Spectrosc. Radiat. Transfer, 1975, 15, 313. [all data]
Huber and Herzberg, 1979
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
Go To: Top, Gas phase thermochemistry data, Gas phase ion energetics data, Constants of diatomic molecules, References
- Symbols used in this document:
S°gas,1 bar Entropy of gas at standard conditions (1 bar) ΔfH°gas Enthalpy of formation of gas at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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