Neopentyl radical

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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:
LBLHLM - Sharon G. Lias, John E. Bartmess, Joel F. Liebman, John L. Holmes, Rhoda D. Levin, and W. Gary Mallard
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron
B - John E. Bartmess

View reactions leading to C5H11+ (ion structure unspecified)

Electron affinity determinations

EA (eV) Method Reference Comment
0.23 ± 0.12D-EADePuy, Gronert, et al., 1989B

Ionization energy determinations

IE (eV) Method Reference Comment
7.88 ± 0.05PESchultz, Houle, et al., 1984LBLHLM
7.91EILossing and Maccoll, 1976LLK
8.3 ± 0.1EITaubert and Lossing, 1962RDSH
8.25 ± 0.03PESchultz, Houle, et al., 1984Vertical value; LBLHLM

Vibrational and/or electronic energy levels

Go To: Top, Gas phase ion energetics data, References, Notes

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

1-CH stretch 3105 Ar IR Pacansky, Brown, et al., 1981
1-CH stretch 3020 Ar IR Pacansky, Brown, et al., 1981
(C4H9)CCH2 OPLA 565 vs Ar IR Pacansky, Brown, et al., 1981
555 vs Ar IR Pacansky, Brown, et al., 1981

Additional references: Jacox, 1994, page 386

Notes

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.

DePuy, Gronert, et al., 1989
DePuy, C.H.; Gronert, S.; Barlow, S.E.; Bierbaum, V.M.; Damrauer, R., The Gas Phase Acidities of the Alkanes, J. Am. Chem. Soc., 1989, 111, 6, 1968, https://doi.org/10.1021/ja00188a003 . [all data]

Schultz, Houle, et al., 1984
Schultz, J.C.; Houle, F.A.; Beauchamp, J.L., Photoelectron spectroscopy of 1-propyl, 1-butyl, isobutyl, neopentyl and 2-butyl radicals: Free radical precursors to high energy carbonium ion isomers, J. Am. Chem. Soc., 1984, 106, 3917. [all data]

Lossing and Maccoll, 1976
Lossing, F.P.; Maccoll, A., Free radicals by mass spectrometry, XLVII. Ionization potentials ionic and heats of formation of C5-C7 alkyl radicals, Can. J. Chem., 1976, 54, 990. [all data]

Taubert and Lossing, 1962
Taubert, R.; Lossing, F.P., Free radicals by mass spectrometry. XXVII. Ionization potentials of four pentyl radicals, J. Am. Chem. Soc., 1962, 84, 1523. [all data]

Pacansky, Brown, et al., 1981
Pacansky, J.; Brown, D.W.; Chang, J.S., Infrared spectra of the isobutyl and neopentyl radicals. Characteristic spectra of primary, secondary, and tertiary alkyl radicals, J. Phys. Chem., 1981, 85, 17, 2562, https://doi.org/10.1021/j150617a029 . [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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