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Dibromomethylene


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

EA (eV) Method Reference Comment
1.78 ± 0.10LPESWren, Vogelhuber, et al., 2009 Schwartz, Davico, et al., 1999 contaminated with HCBr2-. Here, Vertical Detachment Energy = 2.25 eV; Triplet >3 kcal/mol up, but uncertain; B
1.928 ± 0.082IMRBBorn, Ingemann, et al., 2000B
1.880 ± 0.070LPESSchwartz, Davico, et al., 1999triplet 2±3 kcal/mol up from singlet; B

Ionization energy determinations

IE (eV) Method Reference Comment
10.11 ± 0.09EIReed and Snedden, 1958RDSH

References

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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]


Notes

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