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CH3 anion


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:   ?


 Energy 
 (cm-1
 Med.   Transition   «lambda»min 
 (nm) 
 «lambda»max 
 (nm) 
 References

Td = 645 ± 240 gas Ellison, Engelking, et al., 1978

State:   X


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

a1 1 CH3 stretch 3206.25 gas PD Mitchell, Conklin, et al., 2003
2 Umbrella 460 ± 40 gas PE Ellison, Engelking, et al., 1978

Additional references: Jacox, 1994, page 129

Notes

dPhotodissociation threshold

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.

Ellison, Engelking, et al., 1978
Ellison, G.B.; Engelking, P.C.; Lineberger, W.C., An experimental determination of the geometry and electron affinity of CH3, J. Am. Chem. Soc., 1978, 100, 2556. [all data]

Mitchell, Conklin, et al., 2003
Mitchell, S.E.; Conklin, P.M.; Farley, J.W., First observation of autodetachment lifetimes of methide, CH[sub 3][sup -], J. Chem. Phys., 2003, 118, 24, 11017, https://doi.org/10.1063/1.1574017 . [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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