NH2+

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 = 20490 ± 160 U gas Dunlavey, Dyke, et al., 1980
Vib. 
sym. 		  No.   Approximate 
 type of mode 		  cm-1   Med.   Method   References
a1 2 Bend 920 ± 150 gas PE Dunlavey, Dyke, et al., 1980

State:   a
 Energy 
 (cm-1) 		  Med.   Transition   λmin 
 (nm) 		  λmax 
 (nm) 		  References
To = 10222 gas Gibson, Greene, et al., 1985
Willitsch, Merkt, et al., 2006
Vib. 
sym. 		  No.   Approximate 
 type of mode 		  cm-1   Med.   Method   References
a1 1 Sym. stretch 3044.2 ± 0.2 gas TPE Willitsch, Dyke, et al., 2004
2 Bend 1350 ± 50 gas PE Dunlavey, Dyke, et al., 1980

State:   X

Vib. 
sym. 		  No.   Approximate 
 type of mode 		  cm-1   Med.   Method   References
Σg+ 1 Sym. stretch 3090.31 gas PF Dopfer, Nizkorodov, et al., 1998
1 Sym. stretch 2803.65 A gas PF Dopfer, Nizkorodov, et al., 1998
Πu 2 Bend 319.1 ± 0.5 gas TPE Willitsch, Jungen, et al., 2006
Σu+ 3 Asym. stretch 3359.94 gas LD Okumura, Rehfuss, et al., 1989
Kabbadj, Huet, et al., 1996
3 Asym. stretch 3352.9 H gas PF Dopfer, Roth, et al., 1999
3 Asym. stretch 3335 T gas PF Roth, Dopfer, et al., 2000

Additional references: Jacox, 1994, page 20; Jacox, 1998, page 132

Notes

H(1/2)(2ν)
UUpper bound
TTentative assignment or approximate value
oEnergy separation between the v = 0 levels of the excited and electronic ground states.
A0~1 cm-1 uncertainty

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.

Dunlavey, Dyke, et al., 1980
Dunlavey, S.J.; Dyke, J.M.; Jonathan, N.; Morris, A., Vacuum ultraviolet photoelectron spectroscopy of transient species. Part 11. The NH2(X(2)B1) radical, Mol. Phys., 1980, 39, 1121. [all data]

Gibson, Greene, et al., 1985
Gibson, S.; Greene, J.; Berkowitz, J., Photoionization of the amidogen radical, J. Chem. Phys., 1985, 83, 4319. [all data]

Willitsch, Merkt, et al., 2006
Willitsch, S.; Merkt, F.; Kallay, M.; Gauss, J., Thermochemical properties of small open-shell systems: experimental and high-level, Mol. Phys., 2006, 104, 9, 1456, https://doi.org/10.1080/13895260500518551 . [all data]

Willitsch, Dyke, et al., 2004
Willitsch, S.; Dyke, J.M.; Merkt, F., Rotationally resolved photoelectron spectrum of the lowest singlet electronic state of NH, Mol. Phys., 2004, 102, 14-15, 1543, https://doi.org/10.1080/00268970410001725855 . [all data]

Dopfer, Nizkorodov, et al., 1998
Dopfer, O.; Nizkorodov, S.A.; Olkhov, R.V.; Maier, J.P.; Harada, K., Infrared Spectrum of the Ar-NH, J. Phys. Chem. A, 1998, 102, 49, 10017, https://doi.org/10.1021/jp983132b . [all data]

Willitsch, Jungen, et al., 2006
Willitsch, S.; Jungen, Ch.; Merkt, F., Bending energy level structure and quasilinearity of the X[sup +] [sup 3]B[sub 1] ground electronic state of NH[sub 2][sup +], J. Chem. Phys., 2006, 124, 20, 204312, https://doi.org/10.1063/1.2193519 . [all data]

Okumura, Rehfuss, et al., 1989
Okumura, M.; Rehfuss, B.D.; Dinelli, B.M.; Bawendi, M.G.; Oka, T., Difference frequency laser spectroscopy of the ν3 fundamental band of NH+2, J. Chem. Phys., 1989, 90, 11, 5918, https://doi.org/10.1063/1.456357 . [all data]

Kabbadj, Huet, et al., 1996
Kabbadj, Y.; Huet, T.R.; Uy, D.; Oka, T., Infrared Spectroscopy of the Amidogen Ion, NH+2, J. Mol. Spectrosc., 1996, 175, 2, 277, https://doi.org/10.1006/jmsp.1996.0033 . [all data]

Dopfer, Roth, et al., 1999
Dopfer, O.; Roth, D.; Maier, J.P., Infrared spectrum and ab initio calculations of the He--HNH+ open-shell ionic complex, Chem. Phys. Lett., 1999, 310, 1-2, 201, https://doi.org/10.1016/S0009-2614(99)00731-9 . [all data]

Roth, Dopfer, et al., 2000
Roth, D.; Dopfer, O.; Maier, J.P., Infrared spectrum and ab initio calculations of the HNH+--Ne open-shell ionic dimer, Phys. Chem. Chem. Phys., 2000, 2, 22, 5013, https://doi.org/10.1039/b006555m . [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

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