title: Transition-Metal-Mediated Cleavage of a Si=Si Double Bond.
abstract: Reaction of carbene-stabilized disilicon (1) with Fe(CO)5 gives the 1:1 adduct L:Si=Si[Fe(CO)4 ]:L (L:=C{N(2,6-Pr(i) 2 C6 H3 )CH}2 ) (2) at room temperature. At raised temperature, however, 2 may react with another equivalent of Fe(CO)5 to give L:Si[μ-Fe2 (CO)6 ](μ-CO)Si:L (3) through insertion of both CO and Fe2 (CO)6 into the Si2 core, which represents the first experimental realization of transition metal-carbonyl-mediated cleavage of a Si=Si double bond. The structures and bonding of both 2 and 3 have been investigated by spectroscopic, crystallographic, and computational methods.
authors.affiliation: Department of Chemistry and the Center for Computational Chemistry, The University of Georgia, Athens, GA 30602-2556 (USA).
authors.forename: Hunter P
authors.initials: HP
authors.lastname: Hickox
authors.affiliation: Department of Chemistry and the Center for Computational Chemistry, The University of Georgia, Athens, GA 30602-2556 (USA).
authors.forename: Yuzhong
authors.initials: Y
authors.lastname: Wang
authors.affiliation: Department of Chemistry and the Center for Computational Chemistry, The University of Georgia, Athens, GA 30602-2556 (USA).
authors.forename: Yaoming
authors.initials: Y
authors.lastname: Xie
authors.affiliation: Department of Chemistry and the Center for Computational Chemistry, The University of Georgia, Athens, GA 30602-2556 (USA).
authors.forename: Mingwei
authors.initials: M
authors.lastname: Chen
authors.affiliation: Department of Chemistry and the Center for Computational Chemistry, The University of Georgia, Athens, GA 30602-2556 (USA).
authors.forename: Pingrong
authors.initials: P
authors.lastname: Wei
authors.affiliation: Department of Chemistry and the Center for Computational Chemistry, The University of Georgia, Athens, GA 30602-2556 (USA).
authors.forename: Henry F
authors.initials: HF
authors.lastname: Schaefer
authors.affiliation: Department of Chemistry and the Center for Computational Chemistry, The University of Georgia, Athens, GA 30602-2556 (USA). robinson@uga.edu.
authors.forename: Gregory H
authors.initials: GH
authors.lastname: Robinson
keywords: carbenes; cleavage reactions; insertion; iron; silicon