title: Isolation of a hydrogen-bridged bis(silylene) tungsten complex: a snapshot of a transition state for 1,3-hydrogen migration.
abstract: A hydrogen-bridged bis(silylene) complex, which can be viewed as a snapshot of a transition state for 1,3-hydrogen migration, was isolated, and its unprecedented WSi2H four-membered-ring structure with a short diagonal Si-Si distance was revealed by X-ray crystallography. NMR studies including determination of the W-Si, Si-Si, and Si-H coupling constants and theoretical calculations suggest that a novel multicenter bond is formed in the WSi2H system, in which the bridging hydrogen takes on a hydridic nature.
authors.affiliation: Departmet of Chemistry, Graduate School of Science, Tohoku University , Sendai 980-8578, Japan.
authors.forename: Hisako
authors.initials: H
authors.lastname: Hashimoto
authors.forename: Yuto
authors.initials: Y
authors.lastname: Odagiri
authors.forename: Yasuhiro
authors.initials: Y
authors.lastname: Yamada
authors.forename: Nozomi
authors.initials: N
authors.lastname: Takagi
authors.forename: Shigeyoshi
authors.initials: S
authors.lastname: Sakaki
authors.forename: Hiromi
authors.initials: H
authors.lastname: Tobita