Dialuminum monoxide
- Formula: Al2O
- Molecular weight: 69.9625
- CAS Registry Number: 12004-36-3
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Gas phase thermochemistry data
Go To: Top, Vibrational and/or electronic energy levels, 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 | -34.701 | kcal/mol | Review | Chase, 1998 | Data last reviewed in December, 1979 |
| Quantity | Value | Units | Method | Reference | Comment |
| S°gas,1 bar | 60.287 | 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.
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| Temperature (K) | 298. to 6000. |
|---|---|
| A | 14.09900 |
| B | 0.703994 |
| C | -0.205933 |
| D | 0.020352 |
| E | -0.173347 |
| F | -39.51410 |
| G | 76.17340 |
| H | -34.70010 |
| Reference | Chase, 1998 |
| Comment | Data last reviewed in December, 1979 |
Vibrational and/or electronic energy levels
Go To: Top, Gas phase thermochemistry 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: Marilyn E. Jacox
State: ?
| Energy (cm-1) |
Med. | Transition | λmin (nm) |
λmax (nm) |
References | ||
|---|---|---|---|---|---|---|---|
| Tx | Ar | 210 | 212 | Abe and Kolb, 1983 | |||
State: ?
| Energy (cm-1) |
Med. | Transition | λmin (nm) |
λmax (nm) |
References | ||
|---|---|---|---|---|---|---|---|
| Tx | Kr | 202 | 217 | Abe and Kolb, 1983 | |||
State: ?
| Energy (cm-1) |
Med. | Transition | λmin (nm) |
λmax (nm) |
References | ||
|---|---|---|---|---|---|---|---|
| Tx | Xe | 207 | 225 | Abe and Kolb, 1983 | |||
State: B
| Energy (cm-1) |
Med. | Transition | λmin (nm) |
λmax (nm) |
References | ||
|---|---|---|---|---|---|---|---|
| To = 37121 ± 15 | Ar | C-X | 263 | 270 | Douglas, Hauge, et al., 1983 | ||
| To = 36444 ± 15 | Kr | C-X | 267 | 283 | Douglas, Hauge, et al., 1982 | ||
| Douglas, Hauge, et al., 1983, 2 | |||||||
| Douglas, Hauge, et al., 1983 | |||||||
| Hebert, Schriever, et al., 1992 | |||||||
| gas | B-X | 248 | 262 | Cai, Carter, et al., 1991 | |||
| Vib. sym. |
No. | Approximate type of mode |
cm-1 | Med. | Method | References | |
|---|---|---|---|---|---|---|---|
| 1 | Sym. stretch | 451 ± 15 | Ar | AB | Douglas, Hauge, et al., 1983 | ||
| 1 | Sym. stretch | 454 ± 15 | Kr | AB | Douglas, Hauge, et al., 1982 Douglas, Hauge, et al., 1983, 2 Douglas, Hauge, et al., 1983 | ||
| 2 | Bend | 156 ± 15 | Ar | AB | Douglas, Hauge, et al., 1983 | ||
| 2 | Bend | 186 ± 15 | Kr | AB | Douglas, Hauge, et al., 1982 Douglas, Hauge, et al., 1983, 2 Douglas, Hauge, et al., 1983 | ||
State: A
| Energy (cm-1) |
Med. | Transition | λmin (nm) |
λmax (nm) |
References | ||
|---|---|---|---|---|---|---|---|
| To = 23286 ± 15 | Kr | A-X | 415 | 430 | Douglas, Hauge, et al., 1983 | ||
| Vib. sym. |
No. | Approximate type of mode |
cm-1 | Med. | Method | References | |
|---|---|---|---|---|---|---|---|
| 1 | Sym. stretch | 482 ± 15 | Kr | AB | Douglas, Hauge, et al., 1983 | ||
| 2 | Bend | 133 ± 15 | Kr | AB | Douglas, Hauge, et al., 1983 | ||
State: X
| Vib. sym. |
No. | Approximate type of mode |
cm-1 | Med. | Method | References | |
|---|---|---|---|---|---|---|---|
| Σg+ | 1 | Sym. stretch | 525 | gas | LF | Cai, Carter, et al., 1991 | |
| 1 | Sym. stretch | 472 | Ar | Ra | Ovchinnikov, Serebrennikov, et al., 1985 Rozhanskii, Serebrennikov, et al., 1990 | ||
| 1 | Sym. stretch | 471 ± 15 | Kr | LF | Douglas, Hauge, et al., 1983 | ||
| 1 | Sym. stretch | 475 | N2 | Ra | Rozhanskii, Serebrennikov, et al., 1990 | ||
| Πu | 2 | Bend | 99 | gas | LF | Cai, Carter, et al., 1991 | |
| Σu+ | 3 | Asym. stretch | 992 | gas | LF | Cai, Carter, et al., 1991 | |
| 3 | Asym. stretch | 992.8 | Ar | IR | Linevsky, White, et al., 1964 Makowiecki, Lynch, et al., 1971 Lynch, Zehe, et al., 1974 Finn, Gruen, et al., 1976 Andrews, Burkholder, et al., 1992 | ||
| 3 | Asym. stretch | 989.4 | Kr | IR | Linevsky, White, et al., 1964 Makowiecki, Lynch, et al., 1971 | ||
| 3 | Asym. stretch | 991 | N2 | IR | Sonchik, Andrews, et al., 1983 Andrews, Burkholder, et al., 1992 | ||
Additional references: Jacox, 1994, page 63
Notes
| o | Energy separation between the v = 0 levels of the excited and electronic ground states. |
| x | Energy separation between the band maximum of the excited electronic state and the v = 0 level of the ground state. |
References
Go To: Top, Gas phase thermochemistry data, Vibrational and/or electronic energy levels, 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]
Abe and Kolb, 1983
Abe, H.; Kolb, D.M.,
Optical Spectra of Matrix-Isolated Aluminium,
Ber. Bunsenges. Phys. Chem., 1983, 87, 6, 523, https://doi.org/10.1002/bbpc.19830870613
. [all data]
Douglas, Hauge, et al., 1983
Douglas, M.A.; Hauge, R.H.; Margrave, J.L.,
High Temp. Sci., 1983, 16, 35. [all data]
Douglas, Hauge, et al., 1982
Douglas, M.A.; Hauge, R.H.; Margrave, J.L.,
ACS Symposium Ser. 179, American Chemical Society, Washington, D. C., 1982. [all data]
Douglas, Hauge, et al., 1983, 2
Douglas, M.A.; Hauge, R.H.; Margrave, J.L.,
J. Chem. Soc., 1983, Faraday Trans. 1 79, 1533. [all data]
Hebert, Schriever, et al., 1992
Hebert, T.; Schriever, U.; Kolb, D.M.,
VIS-VUV spectroscopic study of the reaction between Al and N2O isolated in solid krypton,
Chem. Phys. Lett., 1992, 200, 3, 258, https://doi.org/10.1016/0009-2614(92)80007-X
. [all data]
Cai, Carter, et al., 1991
Cai, M.; Carter, C.C.; Miller, T.A.; Bondybey, V.E.,
Fluorescence excitation and resolved emission spectra of supersonically cooled Al2O,
J. Chem. Phys., 1991, 95, 1, 73, https://doi.org/10.1063/1.461427
. [all data]
Ovchinnikov, Serebrennikov, et al., 1985
Ovchinnikov, I.V.; Serebrennikov, L.V.; Mal'tsev, A.A.,
Zh. Fiz. Khim., 1985, 59, 1558. [all data]
Rozhanskii, Serebrennikov, et al., 1990
Rozhanskii, I.L.; Serebrennikov, L.V.; Shevel'kov, A.F.,
Zh. Fiz. Khim., 1990, 64, 521. [all data]
Linevsky, White, et al., 1964
Linevsky, M.J.; White, D.; Mann, D.E.,
Infrared Spectrum and Structure of Gaseous Al2O,
J. Chem. Phys., 1964, 41, 2, 542, https://doi.org/10.1063/1.1725905
. [all data]
Makowiecki, Lynch, et al., 1971
Makowiecki, D.M.; Lynch, D.A.; Carlson, K.D.,
Infrared spectra of the aluminum family suboxides,
J. Phys. Chem., 1971, 75, 1963. [all data]
Lynch, Zehe, et al., 1974
Lynch, D.A., Jr.; Zehe, M.J.; Carlson, K.D.,
Reinvestigation of the symmetric stretching mode of matrix-isolated dialuminum monoxide,
J. Phys. Chem., 1974, 78, 3, 236, https://doi.org/10.1021/j100596a009
. [all data]
Finn, Gruen, et al., 1976
Finn, P.A.; Gruen, D.M.; Page, D.L.,
Advan. Chem. Ser. 158, Amer. Chem. Soc., Washington, D. C., 1976. [all data]
Andrews, Burkholder, et al., 1992
Andrews, L.; Burkholder, T.R.; Yustein, J.T.,
Reactions of pulsed-laser evaporated aluminum atoms with oxygen: infrared spectra of the reaction products in solid argon,
J. Phys. Chem., 1992, 96, 25, 10182, https://doi.org/10.1021/j100204a018
. [all data]
Sonchik, Andrews, et al., 1983
Sonchik, S.M.; Andrews, L.; Carlson, K.D.,
Matrix reactions of molecular oxygen and ozone with aluminum atoms,
J. Phys. Chem., 1983, 87, 11, 2004, https://doi.org/10.1021/j100234a033
. [all data]
Jacox, 1994
Jacox, M.E.,
Vibrational and electronic energy levels of polyatomic transient molecules, American Chemical Society, Washington, DC, 1994, 464. [all data]
Notes
Go To: Top, Gas phase thermochemistry data, Vibrational and/or electronic energy levels, 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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