A computational foray into the formation and reactivity of metallabenzenes
Mark A Iron1, André C B Lucassen, Hagai Cohen
1Contribution from the Department of Organic Chemistry and Chemical Research Support Unit, Weizmann Institute of Science, 76100 Rehovot, Israel.
Abstract:
Various metallabenzene complexes, analogues of benzene where one CH unit has been replaced by an organometallic fragment, have been reported in the literature. A detailed theoretical investigation on the chemistry of these complexes is presented here. This includes an evaluation of their aromaticity, the mechanisms of formation of osmium, iridium, and platinum metallabenzene complexes, and one intriguing aspect of their chemistry, the formation of cyclopentadienyl (Cp) complexes. X-ray photoelectron spectroscopy (XPS) measurements on two osmabenzene examples are also presented. In addition, diffuse functions for use with the SDD and SDB-cc-pVDZ basis set-RECP combinations are presented for the transition metals.
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