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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 34, Number 2
BKCSDE 34(2)
February 20, 2013

Title	Cl4 Activation Mechanisms by Gas-Phase CHBr^•– and CBr2^•–: A Comparative Study
Author	Liang Junxi, Wang Yanbin*, Qimeige Hasi, Geng Zhiyuan
Keywords	Carbene radical anion, C-Cl activation, Density functional theory (DFT)
Abstract	The mechanisms concerning C-Cl activation of CCl4 by CHBr•– and CBr2 •– have been comparatively investigated in theory. Optimized geometries and frequencies of all stationary points on PES are obtained at the BhandHLYP/aug-cc-pVTZ level of theory, and then the energy profiles are refined at the QCISD(T) method with the aug-cc-pVTZ basis by using the BhandHLYP/aug-cc-pVTZ optimized geometries. Our calculated findings suggest that in the title reactions the major mechanisms consist of both Cl-abstraction and SN2 substitution reactions. Also, a succeeding pathway described by electron transfer was revealed before the initial Cl-abstraction products separate. Those are consistent with relevant experimental results.
Page	426 - 432
Full Text	PDF

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