Computational Study of the Halogen Atom−Benzene Complexes

Autor: Meng-Lin Tsao, Matthew S. Platz, Christopher M. Hadad
Rok vydání: 2003
Předmět:
Zdroj: Journal of the American Chemical Society. 125:8390-8399
ISSN: 1520-5126
0002-7863
DOI: 10.1021/ja035095u
Popis: The structures of halogen atom-benzene complexes were investigated by modern DFT and ab initio computational methods. The spectroscopic properties of the complexes are also predicted and are in good agreement with experiment where such data have been reported. The fluorine atom-benzene complex is predicted to be a sigma complex due to the strength of a C-F bond. The chlorine atom-benzene complex is predicted to have an eta(1) pi complex structure, which is only slightly more favorable (1.1 kcal/mol with the BH&HLYP/6-311++G method including the ZPE correction) than a sigma complex but is significantly more stable (4.4 kcal/mol with the BH&HLYP/6-311++G method including the ZPE correction) than the eta(6) pi complex. The bromine and iodine benzene complexes are also predicted to prefer an eta(1) pi complex structure.
Databáze: OpenAIRE