Home Symbol which looks like a small house Up Solid circle with an upward pointer in it

Amidogen, methylene-


Gas phase ion energetics data

Go To: Top, Vibrational and/or electronic energy levels, References, Notes

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

Data compiled as indicated in comments:
LL - Sharon G. Lias and Joel F. Liebman
B - John E. Bartmess

View reactions leading to CH2N+ (ion structure unspecified)

Electron affinity determinations

EA (eV) Method Reference Comment
0.5110 ± 0.0080LPESCowles, Travers, et al., 1991B
0.510 ± 0.069IMRBKass and DePuy, 1985EA: between O2 and cyclooctatetraene; B

Ionization energy determinations

IE (eV) Method Reference Comment
9.4 ± 0.1PINesbitt, Marston, et al., 1991LL

Vibrational and/or electronic energy levels

Go To: Top, Gas phase ion energetics data, References, Notes

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   «lambda»min 
 (nm) 
 «lambda»max 
 (nm) 
 References

To = 35047 gas B-X 280 285 Ogilvie and Horne, 1968
Horne and Norrish, 1970
Ogilvie, 1974
Bernard, Strazisar, et al., 1999
Nizamov and Dagdigian, 2003
Teslja, Dagdigian, et al., 2006
To = 34990 ± 25 Ar B-X 270 285 Jacox, 1987


Vib. 
sym. 
 No.   Approximate 
 type of mode 
 cm-1   Med.   Method   References

a1 1 CH2 s-stretch 2774 ± 50 T Ar AB Jacox, 1987
2 CN stretch 1883 ± 50 Ar AB Jacox, 1987
3 CH2 scissors 1413 ± 50 Ar AB Jacox, 1987
b1 4 OPLA 270 H gas CR Teslja, Dagdigian, et al., 2006
4 OPLA 223 H Ar AB Jacox, 1987

State:   X


Vib. 
sym. 
 No.   Approximate 
 type of mode 
 cm-1   Med.   Method   References

a1 1 CH2 s-stretch 2820 T gas PE Cowles, Travers, et al., 1991
2 CN stretch 1725.4 w Ar IR Jacox, 1987
3 CH2 scissors 1337 T gas PE Cowles, Travers, et al., 1991
3 CH2 scissors 1336.6 m Ar IR Jacox, 1987
3 CH2 scissors 1332.7 Kr IR Pettersson, Lundell, et al., 1998
3 CH2 scissors 1328.7 Xe IR Pettersson, Lundell, et al., 1998
b1 4 OPLA 954.1 w m Ar IR Jacox, 1987
4 OPLA 950.3 Kr IR Pettersson, Lundell, et al., 1998
b2 5 CH2 a-stretch 3103.2 m Ar IR Jacox, 1987
6 CH2 rock 912.8 w Ar IR Jacox, 1987
6 CH2 rock 909.0 Kr IR Pettersson, Lundell, et al., 1998

Additional references: Jacox, 1994, page 140; Jacox, 2003, page 171; Cochran, Adrian, et al., 1962; Banks and Gordy, 1973; Yamamoto and Saito, 1992

Notes

wWeak
mMedium
H(1/2)(2nu)
TTentative assignment or approximate value
oEnergy separation between the v = 0 levels of the excited and electronic ground states.

References

Go To: Top, Gas phase ion energetics data, 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.

Cowles, Travers, et al., 1991
Cowles, D.C.; Travers, M.J.; Frueh, J.L.; Ellison, G.B., Photoelectron Spectroscopy of CH2N-, J. Chem. Phys., 1991, 94, 5, 3517, https://doi.org/10.1063/1.459773 . [all data]

Kass and DePuy, 1985
Kass, S.R.; DePuy, C.H., Gas phase ion chemistry of azides. The generation of CH=N- and CH2=NCH2-, J. Org. Chem., 1985, 50, 2874. [all data]

Nesbitt, Marston, et al., 1991
Nesbitt, F.L.; Marston, G.; Stief, L.J.; Wickramaaratchi, M.A.; Tao, W.; Klemm, R.B., Measurement of the photoionization spectra and ionization thresholds of the H2CN and D2CN radicals, J. Phys. Chem., 1991, 95, 7613. [all data]

Ogilvie and Horne, 1968
Ogilvie, J.F.; Horne, D.G., Electronic Absorption Spectra of Methanal Azine and the Methyleniminyl Free Radical, J. Chem. Phys., 1968, 48, 5, 2248, https://doi.org/10.1063/1.1669419 . [all data]

Horne and Norrish, 1970
Horne, D.G.; Norrish, R.G.W., The Photolysis of Acyclic Azines and the Electronic Spectra of RFormulaRFormulaCNFormula Radicals, Proc. Roy. Soc. (London) A315, 1970, 315, 1522, 301, https://doi.org/10.1098/rspa.1970.0045 . [all data]

Ogilvie, 1974
Ogilvie, J.F., Can. J. Spectrosc., 1974, 19, 89. [all data]

Bernard, Strazisar, et al., 1999
Bernard, E.J.; Strazisar, B.R.; Davis, H.F., Excited state dynamics of H2CN radicals, Chem. Phys. Lett., 1999, 313, 3-4, 461, https://doi.org/10.1016/S0009-2614(99)01062-3 . [all data]

Nizamov and Dagdigian, 2003
Nizamov, B.; Dagdigian, P.J., Spectroscopic and Kinetic Investigation of Methylene Amidogen by Cavity Ring-Down Spectroscopy, J. Phys. Chem. A, 2003, 107, 13, 2256, https://doi.org/10.1021/jp022197i . [all data]

Teslja, Dagdigian, et al., 2006
Teslja, A.; Dagdigian, P.J.; Banck, M.; Eisfeld, W., Experimental and Theoretical Study of the Electronic Spectrum of the Methylene Amidogen Radical (H, J. Phys. Chem. A, 2006, 110, 25, 7826, https://doi.org/10.1021/jp061578j . [all data]

Jacox, 1987
Jacox, M.E., Vibrational and electronic spectra of the hydrogen atom + hydrogen cyanide reaction products trapped in solid argon, J. Phys. Chem., 1987, 91, 27, 6595, https://doi.org/10.1021/j100311a008 . [all data]

Pettersson, Lundell, et al., 1998
Pettersson, M.; Lundell, J.; Khriachtchev, L.; Rasanen, M., Neutral rare-gas containing charge-transfer molecules in solid matrices. III. HXeCN, HXeNC, and HKrCN in Kr and Xe, J. Chem. Phys., 1998, 109, 2, 618, https://doi.org/10.1063/1.476599 . [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, 2003
Jacox, M.E., Vibrational and electronic energy levels of polyatomic transient molecules: supplement B, J. Phys. Chem. Ref. Data, 2003, 32, 1, 1-441, https://doi.org/10.1063/1.1497629 . [all data]

Cochran, Adrian, et al., 1962
Cochran, E.L.; Adrian, F.J.; Bowers, V.A., ESR Detection of the Cyanogen and Methylene Imino Free Radicals, J. Chem. Phys., 1962, 36, 7, 1938, https://doi.org/10.1063/1.1701294 . [all data]

Banks and Gordy, 1973
Banks, D.; Gordy, W., Electron spin resonance and bond structure of H, Mol. Phys., 1973, 26, 6, 1555, https://doi.org/10.1080/00268977300102721 . [all data]

Yamamoto and Saito, 1992
Yamamoto, S.; Saito, S., The microwave spectrum of the CH2N radical in the X 2B2 ground electronic state, J. Chem. Phys., 1992, 96, 6, 4157, https://doi.org/10.1063/1.461871 . [all data]


Notes

Go To: Top, Gas phase ion energetics data, Vibrational and/or electronic energy levels, References