Aluminum oxide

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-20.60kcal/molReviewChase, 1998Data last reviewed in December, 1979
Quantity Value Units Method Reference Comment
S°gas,1 bar60.189cal/mol*KReviewChase, 1998Data 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.

View table.

Temperature (K) 298. to 1000.1000. to 6000.
A 9.42409215.58052
B 13.94749-0.639388
C -13.640060.188535
D 4.767161-0.012862
E -0.051019-0.685120
F -24.08987-27.00215
G 67.7120076.65990
H -20.60000-20.60000
ReferenceChase, 1998Chase, 1998
Comment Data last reviewed in December, 1979 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:   C
 Energy 
 (cm-1) 		  Med.   Transition   λmin 
 (nm) 		  λmax 
 (nm) 		  References
To = 17465 Ar A-X 495 620 Rozhanskii, Serebrennikov, et al., 1988
Vib. 
sym. 		  No.   Approximate 
 type of mode 		  cm-1   Med.   Method   References
Σg+ 1 Sym. stretch 790 Ar LF Rozhanskii, Serebrennikov, et al., 1988
Πu 2 Bend 70 Ar LF Rozhanskii, Serebrennikov, et al., 1988

State:   B
 Energy 
 (cm-1) 		  Med.   Transition   λmin 
 (nm) 		  λmax 
 (nm) 		  References
To = 6860 ± 180 gas Desai, Wu, et al., 1997

State:   A
 Energy 
 (cm-1) 		  Med.   Transition   λmin 
 (nm) 		  λmax 
 (nm) 		  References
To = 5240 ± 180 gas Desai, Wu, et al., 1997
Vib. 
sym. 		  No.   Approximate 
 type of mode 		  cm-1   Med.   Method   References
Σu+ 3 Asym. stretch 1015 Ar LF Rozhanskii, Serebrennikov, et al., 1988
Σg+ 1 Sym. stretch 810 ± 60 gas PE Desai, Wu, et al., 1997
Πu 2 Bend 70 Ar LF Rozhanskii, Serebrennikov, et al., 1988
Σu+ 3 Asym. stretch 1129.5 Ar IR Andrews, Burkholder, et al., 1992

State:   X

Vib. 
sym. 		  No.   Approximate 
 type of mode 		  cm-1   Med.   Method   References
Σg+ 1 Sym. stretch 635 Ar LF Rozhanskii, Serebrennikov, et al., 1988

Additional references: Jacox, 1994, page 75; Jacox, 1998, page 183

Notes

oEnergy separation between the v = 0 levels of the excited and electronic ground states.

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]

Rozhanskii, Serebrennikov, et al., 1988
Rozhanskii, I.L.; Serebrennikov, L.V.; Shevel'kov, V.F., Vestn. Mosk. Univ., 1988, Khim., 43, 560. [all data]

Desai, Wu, et al., 1997
Desai, S.R.; Wu, H.; Rohlfing, C.M.; Wang, L.-S., A Study of the Structure and Bonding of Small Aluminum Oxide Clusters by Photoelectron Spectroscopy: AlxOy- (x=1-2, y=1-5), J. Chem. Phys., 1997, 106, 4, 1309, https://doi.org/10.1063/1.474085 . [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]

Jacox, 1994
Jacox, M.E., Vibrational and electronic energy levels of polyatomic transient molecules, American Chemical Society, Washington, DC, 1994, 464. [all data]

Jacox, 1998
Jacox, M.E., Vibrational and electronic energy levels of polyatomic transient molecules: supplement A, J. Phys. Chem. Ref. Data, 1998, 27, 2, 115-393, https://doi.org/10.1063/1.556017 . [all data]

Notes

Go To: Top, Gas phase thermochemistry data, Vibrational and/or electronic energy levels, References