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H2CBr-Br


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

Txd = 28000 Ar Andrews, Prochaska, et al., 1979

State:   ?


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

Td = 17500 U Ar Andrews, Prochaska, et al., 1979

State:   X


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

CH2 stretch 3156.3 w Ar IR Maier, Reisenauer, et al., 1990
CH2 stretch 3030.4 w Ar IR Maier, Reisenauer, et al., 1990
CH2 scissors 1333.6 w Ar IR Maier, Reisenauer, et al., 1990
1129 m T Ar IR Andrews, Prochaska, et al., 1979
695.2 w m Ar IR Andrews, Prochaska, et al., 1979
Maier, Reisenauer, et al., 1990
CBr stretch 684.4 vs Ar IR Andrews, Prochaska, et al., 1979
Kelsall and Andrews, 1983
Maier, Reisenauer, et al., 1990

Additional references: Jacox, 1994, page 264

Notes

wWeak
mMedium
vsVery strong
UUpper bound
TTentative assignment or approximate value
xEnergy separation between the band maximum of the excited electronic state and the v = 0 level of the ground state.
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.

Andrews, Prochaska, et al., 1979
Andrews, L.; Prochaska, F.T.; Ault, B.S., Matrix photoionization and radiolysis of dichloromethane and dibromomethane. Infrared and ultraviolet absorption spectra and photolysis of CH2Cl2+ and CH2Br2+, J. Am. Chem. Soc., 1979, 101, 1, 9, https://doi.org/10.1021/ja00495a002 . [all data]

Maier, Reisenauer, et al., 1990
Maier, G.; Reisenauer, H.P.; Hu, J.; Schaad, L.J.; Hess, B.A., Jr., Photochemical isomerization of dihalomethanes in argon matrixes, J. Am. Chem. Soc., 1990, 112, 13, 5117, https://doi.org/10.1021/ja00169a020 . [all data]

Kelsall and Andrews, 1983
Kelsall, B.J.; Andrews, L., FTIR spectroscopic studies of the matrix photoionization and photolysis products of methylene halides, J. Mol. Spectrosc., 1983, 97, 2, 362, https://doi.org/10.1016/0022-2852(83)90274-6 . [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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