ABINITIO CALCULATION OF THE INVERSION BARRIER IN THE TRICHLOROMETHYL RADICAL

被引:11
作者
MOC, J [1 ]
RUDZINSKI, JM [1 ]
LATAJKA, Z [1 ]
RATAJCZAK, H [1 ]
机构
[1] WROCLAW B BEIRUT UNIV, INST CHEM, F JOLIOT CURIE 14, PL-50383 WROCLAW, POLAND
关键词
D O I
10.1016/0009-2614(90)85106-M
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
The inversion barrier in the CCl3 radical has been calculated by means of the UHF and UMP2 models in conjunction with basis sets of split-valence (6-31G), polarized split-valence (6-31G*), double-zeta plus polarization or triple-zeta plus double polarization quality. For this low-barrier system, the UMP2 correlation corrections appeared to be important in calculating the barrier height. At the UMP2/6-31G, UMP2/6-31G* and UMP2/DZP levels, electron correlation was found to increase the CCl3 barrier, in contrast to the case of the CF3 radical as described recently by Curtiss and Pople. © 1990.
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页码:79 / 83
页数:5
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