As4+

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:   B
 Energy 
 (cm-1) 		  Med.   Transition   λmin 
 (nm) 		  λmax 
 (nm) 		  References
To = 25710 ± 100 gas Elbel, tom Dieck, et al., 1981
Vib. 
sym. 		  No.   Approximate 
 type of mode 		  cm-1   Med.   Method   References
a1 1 350 ± 6 gas PE Wang, Niu, et al., 1990

State:   A
 Energy 
 (cm-1) 		  Med.   Transition   λmin 
 (nm) 		  λmax 
 (nm) 		  References
To = 13500 ± 900 gas Elbel, tom Dieck, et al., 1981
Vib. 
sym. 		  No.   Approximate 
 type of mode 		  cm-1   Med.   Method   References
f2 3 240 T gas PE Wang, Niu, et al., 1990

Additional references: Jacox, 1994, page 187; Dyke, Elbel, et al., 1986; Wang, Niu, et al., 1990, 2

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.

Elbel, tom Dieck, et al., 1981
Elbel, S.; tom Dieck, H.; Walther, H.; Krizek, J., Photoelectron spectra of group V compounds, As4 and As2, Inorg. Chim. Acta, 1981, 53, L101, https://doi.org/10.1016/S0020-1693(00)84756-8 . [all data]

Wang, Niu, et al., 1990
Wang, L.-S.; Niu, B.; Lee, Y.T.; Shirley, D.A.; Ghelichkhani, E.; Grant, E.R., Photoelectron spectroscopy and electronic structure of clusters of the group V elements. III. Tetramers: The 2T2 and 2A1 excited states of P+4, As+4, and Sb+4, J. Chem. Phys., 1990, 93, 9, 6327, https://doi.org/10.1063/1.458975 . [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]

Dyke, Elbel, et al., 1986
Dyke, J.M.; Elbel, S.; Morris, A.; Stevens, J.C.H., J. Chem. Soc., 1986, Faraday Trans. 2 82, 637. [all data]

Wang, Niu, et al., 1990, 2
Wang, L.-S.; Niu, B.; Lee, Y.T.; Shirley, D.A.; Ghelichkhani, E.; Grant, E.R., Photoelectron spectroscopy and electronic structure of clusters of the group V elements. II. Tetramers: Strong Jahn--Teller coupling in the tetrahedral 2E ground states of P+4, As+4, and Sb+4, J. Chem. Phys., 1990, 93, 9, 6318, https://doi.org/10.1063/1.459698 . [all data]

Notes

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