Al3

Vibrational and/or electronic energy levels

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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: Marilyn E. Jacox

State:   ?
 Energy 
 (cm-1) 		  Med.   Transition   λmin 
 (nm) 		  λmax 
 (nm) 		  References
To = 16610 T gas A-X 516 602 Fu, Lemire, et al., 1988

State:   2B2
 Energy 
 (cm-1) 		  Med.   Transition   λmin 
 (nm) 		  λmax 
 (nm) 		  References
To = 5690 ± 40 gas Villalta and Leopold, 2009

State:   4A2
 Energy 
 (cm-1) 		  Med.   Transition   λmin 
 (nm) 		  λmax 
 (nm) 		  References
To = 2420 ± 30 gas Villalta and Leopold, 2009
Vib. 
sym. 		  No.   Approximate 
 type of mode 		  cm-1   Med.   Method   References
a1 1 315 ± 15 gas PE Villalta and Leopold, 2009
2 140 ± 10 gas PE Villalta and Leopold, 2009

State:   2A2
 Energy 
 (cm-1) 		  Med.   Transition   λmin 
 (nm) 		  λmax 
 (nm) 		  References
To = 1550 ± 30 gas Villalta and Leopold, 2009
To = 1770.4 ± 0.3 Ne Li, Van Zee, et al., 1996
To = 1756.9 ± 0.3 Ar Li, Van Zee, et al., 1996
Vib. 
sym. 		  No.   Approximate 
 type of mode 		  cm-1   Med.   Method   References
a1' 1 Breathing 315 ± 15 gas PE Villalta and Leopold, 2009
1 Breathing 319 ± 2 Ne IR Li, Van Zee, et al., 1996
1 Breathing 317 Ar IR Li, Van Zee, et al., 1996
e' 2 Deformation 197 ± 10 gas PE Villalta and Leopold, 2009

State:   ?

Vib. 
sym. 		  No.   Approximate 
 type of mode 		  cm-1   Med.   Method   References
1 270.6 gas MPI Fu, Lemire, et al., 1988

State:   ?

Vib. 
sym. 		  No.   Approximate 
 type of mode 		  cm-1   Med.   Method   References
2 205 gas MPI Fu, Lemire, et al., 1988

State:   X

Vib. 
sym. 		  No.   Approximate 
 type of mode 		  cm-1   Med.   Method   References
a1' 1 Breathing 357 ± 10 gas PE Villalta and Leopold, 2009
e' 2 Deformation 240 ± 10 gas PE Villalta and Leopold, 2009
2 Deformation 245 ± 2 Ne IR Li, Van Zee, et al., 1996
2 Deformation 245 Ar IR Li, Van Zee, et al., 1996

Additional references: Jacox, 1994, page 62; Jacox, 1998, page 162; Hamrick, Van Zee, et al., 1992

Notes

TTentative assignment or approximate value
oEnergy separation between the v = 0 levels of the excited and electronic ground states.

References

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

Fu, Lemire, et al., 1988
Fu, Z.; Lemire, G.W.; Hamrick, Y.M.; Taylor, S.; Shui, J.-C.; Morse, M.D., Spectroscopic studies of the jet-cooled aluminum trimer, J. Chem. Phys., 1988, 88, 6, 3524, https://doi.org/10.1063/1.453900 . [all data]

Villalta and Leopold, 2009
Villalta, P.W.; Leopold, D.G., A study of the ground and excited states of Al-3 and Al-3(-). I. 488 nm anion photoelectron spectrum, J. Chem. Phys., 2009, 130, 2, 024303, https://doi.org/10.1063/1.2973625 . [all data]

Li, Van Zee, et al., 1996
Li, S.; Van Zee, R.J.; Weltner, W., Jr., Infrared observations of the B3 and Al3 molecules in inert-gas matrices at 4 K, Chem. Phys. Lett., 1996, 262, 3-4, 298, https://doi.org/10.1016/0009-2614(96)01094-9 . [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]

Hamrick, Van Zee, et al., 1992
Hamrick, Y.M.; Van Zee, R.J.; Weltner, W., Jr., Electron-spin resonance and ground states of the boron and aluminum trimers, J. Chem. Phys., 1992, 96, 3, 1767, https://doi.org/10.1063/1.462132 . [all data]

Notes

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