ICN+

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:   C
 Energy 
 (cm-1) 		  Med.   Transition   λmin 
 (nm) 		  λmax 
 (nm) 		  References
To = 46600 ± 200 gas Heilbronner, Hornung, et al., 1970
Lake and Thompson, 1970

State:   B
 Energy 
 (cm-1) 		  Med.   Transition   λmin 
 (nm) 		  λmax 
 (nm) 		  References
To = 19630 ± 160 gas B-X 568 644 Fulara, Klapstein, et al., 1985
To = 20023 ± 16 Ne B-X 446 522 Leutwyler, Maier, et al., 1985
Vib. 
sym. 		  No.   Approximate 
 type of mode 		  cm-1   Med.   Method   References
Σ+ 1 CN stretch 2100 ± 40 gas PE Kovac, 1987
Π 2 Bend 300 ± 40 gas PE Kovac, 1987
Σ+ 3 CI stretch 473 ± 2 gas EF Fulara, Klapstein, et al., 1985
3 CI stretch 400 ± 20 Ne AB Leutwyler, Maier, et al., 1985

State:   A
 Energy 
 (cm-1) 		  Med.   Transition   λmin 
 (nm) 		  λmax 
 (nm) 		  References
To = 18262 ± 1 gas A-X 537 758 Allan and Maier, 1976
Fulara, Klapstein, et al., 1985
To = 19135 ± 15 Ne A-X 499 499 Leutwyler, Maier, et al., 1985
Vib. 
sym. 		  No.   Approximate 
 type of mode 		  cm-1   Med.   Method   References
Π 2 Bend 274 ± 2 gas EF Fulara, Klapstein, et al., 1985

State:   X

Vib. 
sym. 		  No.   Approximate 
 type of mode 		  cm-1   Med.   Method   References
Π 2 Bend 253 ± 2 gas EF Fulara, Klapstein, et al., 1985
Σ+ 3 CI stretch 559 ± 2 gas EF Fulara, Klapstein, et al., 1985
1 CN stretch 2082 ± 2 gas EF Fulara, Klapstein, et al., 1985
Π 2 Bend 239 ± 2 gas EF Fulara, Klapstein, et al., 1985
Σ+ 3 CI stretch 535 ± 2 gas EF Fulara, Klapstein, et al., 1985

Additional references: Jacox, 1994, page 81; Braitbart, Castellucci, et al., 1985

Notes

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

References

Go To: Top, 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.

Heilbronner, Hornung, et al., 1970
Heilbronner, E.; Hornung, V.; Muszkat, K.A., Die Photoelektron-Spektren von Chlor-, Brom- und Jodcyan, Helv. Chim. Acta, 1970, 53, 347. [all data]

Lake and Thompson, 1970
Lake, R.F.; Thompson, H., The photoelectron spectra of some molecules containing the C N group, Proc. Roy. Soc. (London), 1970, A317, 187. [all data]

Fulara, Klapstein, et al., 1985
Fulara, J.; Klapstein, D.; Kuhn, R.; Maier, J.P., Emission spectra of supersonically cooled halocyanide cations, XCN+ (X = Cl, Br, I): ~A2.SIGMA.+ .fwdarw. ~B2.PI. and ~B2.PI. .fwdarw. ~X2.PI. band systems, J. Phys. Chem., 1985, 89, 20, 4213, https://doi.org/10.1021/j100266a014 . [all data]

Leutwyler, Maier, et al., 1985
Leutwyler, S.; Maier, J.P.; Spittel, U., The electronic absorption spectra of ClCN+, BrCN+, and ICN+ in neon matrices, J. Chem. Phys., 1985, 83, 2, 506, https://doi.org/10.1063/1.449513 . [all data]

Kovac, 1987
Kovac, B., High-resolution photoelectron spectra of cyanogen bromide and cyanogen iodide: vibronic mixing, J. Phys. Chem., 1987, 91, 16, 4231, https://doi.org/10.1021/j100300a005 . [all data]

Allan and Maier, 1976
Allan, M.; Maier, J.P., The emission spectra of CICN+, BrCN+, ICN+ radical cations: 2Π→2Π and 2Σ+ → 2Π band systems, Chem. Phys. Lett., 1976, 41, 2, 231, https://doi.org/10.1016/0009-2614(76)80799-3 . [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]

Braitbart, Castellucci, et al., 1985
Braitbart, O.; Castellucci, E.; Dujardin, G.; Leach, S., Nonradiative transitions and unimolecular dissociation of excited electronic states of cyanogen chloride(1+) (ClCN+), cyanogen bromide(1+) (BrCN+), and cyanogen iodide(1+) (ICN+), J. Phys. Chem., 1985, 89, 15, 3252, https://doi.org/10.1021/j100261a018 . [all data]

Notes

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