NCNCO+

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:   E
 Energy 
 (cm-1) 		  Med.   Transition   λmin 
 (nm) 		  λmax 
 (nm) 		  References
Tx = 45990 ± 320 gas Frost, Kroto, et al., 1977

State:   D
 Energy 
 (cm-1) 		  Med.   Transition   λmin 
 (nm) 		  λmax 
 (nm) 		  References
Tx = 26220 T gas Frost, Kroto, et al., 1977

State:   C
 Energy 
 (cm-1) 		  Med.   Transition   λmin 
 (nm) 		  λmax 
 (nm) 		  References
To = 24450 ± 320 gas Frost, Kroto, et al., 1977
Vib. 
sym. 		  No.   Approximate 
 type of mode 		  cm-1   Med.   Method   References
a' 730 ± 60 gas PE Frost, Kroto, et al., 1977

State:   B
 Energy 
 (cm-1) 		  Med.   Transition   λmin 
 (nm) 		  λmax 
 (nm) 		  References
Tx = 15900 ± 320 gas Frost, Kroto, et al., 1977
Vib. 
sym. 		  No.   Approximate 
 type of mode 		  cm-1   Med.   Method   References
a' 2340 ± 60 gas PE Frost, Kroto, et al., 1977
1410 ± 60 gas PE Frost, Kroto, et al., 1977
600 ± 60 gas PE Frost, Kroto, et al., 1977

State:   A
 Energy 
 (cm-1) 		  Med.   Transition   λmin 
 (nm) 		  λmax 
 (nm) 		  References
Tx = 4120 ± 320 gas Frost, Kroto, et al., 1977

State:   X

Vib. 
sym. 		  No.   Approximate 
 type of mode 		  cm-1   Med.   Method   References
a' 2130 ± 60 gas PE Frost, Kroto, et al., 1977
540 ± 60 gas PE Frost, Kroto, et al., 1977

Additional references: Jacox, 1994, page 279

Notes

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

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.

Frost, Kroto, et al., 1977
Frost, D.C.; Kroto, H.W.; McDowell, C.A.; Westwood, N.P.C., The HeI photoelectron spectra of the isoelectronic molecules, cyanogen azide, NCN3, and cyanogen isocyanate, NCNCO, J. Electron Spectrosc. Relat. Phenom., 1977, 11, 147. [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

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