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Dibromomethyl radical


Gas phase ion energetics data

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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 as indicated in comments:
LBLHLM - Sharon G. Lias, John E. Bartmess, Joel F. Liebman, John L. Holmes, Rhoda D. Levin, and W. Gary Mallard
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron

View reactions leading to CHBr2+ (ion structure unspecified)

Ionization energy determinations

IE (eV) Method Reference Comment
8.30 ± 0.03PEAndrews, Dyke, et al., 1984LBLHLM
8.13 ± 0.16EIReed and Snedden, 1956RDSH
8.41 ± 0.03PEAndrews, Dyke, et al., 1984Vertical value; LBLHLM

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:   X


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

a' 2 CBr s-stretch 633 w m Ar IR Carver and Andrews, 1969
520 ± 30 gas PE Vogelhuber, Wren, et al., 2011
a 5 HCBr deform. 1165 s Ar IR Carver and Andrews, 1969
Rogers, Abramowitz, et al., 1970
Andrews, Wight, et al., 1978
Andrews, Prochaska, et al., 1979
6 CBr a-stretch 778 vs Ar IR Carver and Andrews, 1969
Rogers, Abramowitz, et al., 1970
Andrews, Wight, et al., 1978
Andrews, Prochaska, et al., 1979
Kelsall and Andrews, 1983

Additional references: Jacox, 1994, page 178

Notes

wWeak
mMedium
sStrong
vsVery strong

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.

Andrews, Dyke, et al., 1984
Andrews, L.; Dyke, J.M.; Jonathan, N.; Keddar, N.; orris, A., The first bands in the photoelectron spectra of the CH2Br, CD2Br, CHBr2, and CH2I free radicals, J. Phys. Chem., 1984, 88, 1950. [all data]

Reed and Snedden, 1956
Reed, R.I.; Snedden, W., Studies in electron impact methods. Part 6.-The formation of the methine and carbon ions, J. Chem. Soc. Faraday Trans., 1956, 55, 876. [all data]

Carver and Andrews, 1969
Carver, T.G.; Andrews, L., Matrix Infrared Spectrum and Bonding in the Dibromomethyl Radical, J. Chem. Phys., 1969, 50, 10, 4223, https://doi.org/10.1063/1.1670887 . [all data]

Vogelhuber, Wren, et al., 2011
Vogelhuber, K.M.; Wren, S.W.; McCoy, A.B.; Ervin, K.M.; Lineberger, W.C., Photoelectron spectra of dihalomethyl anions: Testing the limits of normal mode analysis, J. Chem. Phys., 2011, 134, 18, 184306, https://doi.org/10.1063/1.3585606 . [all data]

Rogers, Abramowitz, et al., 1970
Rogers, E.E.; Abramowitz, S.; Jacox, M.E.; Milligan, D.E., Matrix-Isolation Studies of the Infrared Spectra of the Free Radicals CCl3 and CBr3, J. Chem. Phys., 1970, 52, 5, 2198, https://doi.org/10.1063/1.1673285 . [all data]

Andrews, Wight, et al., 1978
Andrews, L.; Wight, C.A.; Prochaska, F.T.; McDonald, S.A.; Ault, B.S., Vacuum-ultraviolet photoionization of bromoform and its chlorine substituted counterparts during condensation with argon at 15 K, J. Mol. Spectrosc., 1978, 73, 1, 120, https://doi.org/10.1016/0022-2852(78)90199-6 . [all data]

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]

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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