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Design, Syntheses and Characterizations of New Functionalized Tricarbadecaborane Anion Ligands and Their Transition Metal Coordination Chemistry

Bhaskar M. Ramachandran

出版	University of Pennsylvania, 2003
URL	http://books.google.com.hk/books?id=6Wi7PgAACAAJ&hl=&source=gbs_api

註釋

The tricarbadecaboranyl anions, (6-R-nido-5,6,9-C 3B7H9)-, [R = Ph, Me] have been employed to produce a series of metallatricarbadecaboranyl analogs of the group VIII metallocenes. Electrochemical studies revealed that RC 3B7H9 analogs of Cp metal complexes were oxidatively more stable and underwent facile reduction reactions. Reaction of 1-(eta 5-C5H5)-2-Ph-closo-1,2,3,4-FeC 3B7H9 with Cr(CO)6 resulted in the formation of the arene-substituted complex 1-(eta5-C 5H5)-2-[(eta6-C6H5)Cr(CO) 3]-closo-1,2,3,4-FeC3B7H 9. Complexes 1-(eta5-C10H15)-2-Me- closo-1,2,3,4-RuC3B7H9 and 1-(eta5-C5H5)-2-Ph-closo -1,2,3,4-FeC3B7H9 were found to undergo reversible cage-slippages between the eta6--eta 4 coordination modes during the association-dissociation reaction with t-BuNC to produce 8-(eta5-C5Me 5)-8-(CNBut)-9-Me-nido-8,7,9,10-RuC 3B7H9 and 8-(eta5-C5H 5)-8-(CNBut)-9-Ph-nido-8,7,9,10-FeC 3B7H9, respectively.