Dibromomethylene

• Formula: CBr₂
• Molecular weight: 171.819
• IUPAC Standard InChI: InChI=1S/CBr2/c2-1-3 Copy

  
• IUPAC Standard InChIKey: WNLFIUJNNYMFIZ-UHFFFAOYSA-N Copy
• CAS Registry Number: 4371-77-1
• Chemical structure:
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• Information on this page:
  • Gas phase ion energetics data
  • Vibrational and/or electronic energy levels
  • References
  • Notes
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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:
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron
B - John E. Bartmess

View reactions leading to CBr₂⁺ (ion structure unspecified)

Electron affinity determinations

Ionization energy determinations

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:   A

State:   a

State:   X

Additional references: Jacox, 1994, page 100; Jacox, 2003, page 139

Notes

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.

Wren, Vogelhuber, et al., 2009
Wren, S.W.; Vogelhuber, K.M.; Ervin, K.M.; Lineberger, W.C., The photoelectron spectrum of CCl2-: the convergence of theory and experiment after a decade of debate, Phys. Chem. Chem. Phys., 2009, 11, 23, 4745-4753, https://doi.org/10.1039/b822690c . [all data]

Schwartz, Davico, et al., 1999
Schwartz, R.L.; Davico, G.E.; Ramond, T.M.; Lineberger, W.C., Singlet-triplet splittings in CX2 (X = F, Cl, Br, I) dihalocarbenes via negative ion photoelectron spectroscopy, J. Phys. Chem. A, 1999, 103, 41, 8213-8221, https://doi.org/10.1021/jp992214c . [all data]

Born, Ingemann, et al., 2000
Born, M.; Ingemann, S.; Nibbering, N.M.M., Thermochemical properties of halogen-substituted methanes, methyl radicals, and carbenes in the gas phase, Int. J. Mass Spectrom., 2000, 194, 2-3, 103-113, https://doi.org/10.1016/S1387-3806(99)00125-6 . [all data]

Reed and Snedden, 1958
Reed, R.I.; Snedden, W., Studies in electron impact methods. Part 2. The latent heat of sublimation of carbon, J. Chem. Soc. Faraday Trans., 1958, 54, 301. [all data]

Zhou, Zhan, et al., 1990
Zhou, S.K.; Zhan, M.S.; Shi, J.L.; Wang, C.X., Gas phase spectrum of dibromocarbene studied by laser-induced fluorescence, Chem. Phys. Lett., 1990, 166, 5-6, 547, https://doi.org/10.1016/0009-2614(90)87149-L . [all data]

Xu and Harmony, 1993
Xu, S.; Harmony, M.D., LIF excitation spectrum of dibromocarbene in a supersonic free-jet expansion, J. Phys. Chem., 1993, 97, 29, 7465, https://doi.org/10.1021/j100131a013 . [all data]

Lee, Liu, et al., 2003
Lee, C.-L.; Liu, M.-L.; Chang, B.-C., Electronic spectroscopy of bromomethylenes in a supersonic free jet expansion, Phys. Chem. Chem. Phys., 2003, 5, 18, 3859, https://doi.org/10.1039/b307449h . [all data]

Hsu, Chang, et al., 2005
Hsu, H.-J.; Chang, W.-Z.; Chang, B.-C., Dispersed fluorescence spectroscopy of the CBr2Ã1B1--X1A1 transition, Phys. Chem. Chem. Phys., 2005, 7, 12, 2468, https://doi.org/10.1039/b505434f . [all data]

Tao, Mukarakate, et al., 2006
Tao, C.; Mukarakate, C.; Brusse, D.; Mishchenko, Y.; Reid, S.A., Reassignment of the electronic origin in the system of dibromocarbene, J. Mol. Spectrosc., 2006, 240, 1, 139, https://doi.org/10.1016/j.jms.2006.09.006 . [all data]

Tao, Mukarakate, et al., 2007
Tao, C.; Mukarakate, C.; Reid, S.A., Single vibronic level emission spectroscopy of the system of dibromocarbene, J. Mol. Spectrosc., 2007, 241, 2, 136, https://doi.org/10.1016/j.jms.2006.11.009 . [all data]

Tao, Mukarakate, et al., 2007, 2
Tao, C.; Mukarakate, C.; Brusse, D.; Mishchenko, Y.; Reid, S.A., Electronic spectroscopy, lifetimes, and barrier to linearity in the system of dibromocarbene, J. Mol. Spectrosc., 2007, 241, 2, 180, https://doi.org/10.1016/j.jms.2006.12.005 . [all data]

Al-Samra and Western, 2010
Al-Samra, E.H.; Western, C.M., High resolution spectroscopy of the Ã1B1--A1 transition of CBr2, J. Mol. Spectrosc., 2010, 260, 2, 135, https://doi.org/10.1016/j.jms.2010.02.001 . [all data]

Tevault and Andrews, 1975
Tevault, D.E.; Andrews, L., Laser-induced fluorescence studies of alkali metal atom-carbon tetrahalide matrix reaction products. Fluorescence spectra of dibromome thylene and bromochloromethylene in solid argon at 15.deg.K, J. Am. Chem. Soc., 1975, 97, 7, 1707, https://doi.org/10.1021/ja00840a014 . [all data]

Bondybey and English, 1980
Bondybey, V.E.; English, J.H., Laser excitation spectra and lifetimes of CBrCl and CBr2 in solid Ar, J. Mol. Spectrosc., 1980, 79, 2, 416, https://doi.org/10.1016/0022-2852(80)90222-2 . [all data]

Wren, Vogelhuber, et al., 2009, 2
Wren, S.W.; Vogelhuber, K.M.; Ervin, K.M.; Lineberger, W.C., The photoelectron spectrum of CCl2-: the convergence of theory and experiment after a decade of debate, Phys. Chem. Chem. Phys., 2009, 11, 23, 4745, https://doi.org/10.1039/b822690c . [all data]

Andrews and Carver, 1968
Andrews, L.; Carver, T.G., Reactions of Alkali-Metal Atoms with Carbon Tetrabromide. Infrared Spectra and Bonding in the Tribromomethyl Radical and Dibromocarbene in Solid Argon, J. Chem. Phys., 1968, 49, 2, 896, https://doi.org/10.1063/1.1670158 . [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]

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]

Notes

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• Symbols used in this document:
  

  EA	Electron affinity

• Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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