title: Synthesis of silicon-functionalized dibenzosilaborins by intramolecular B-H/C-H dehydrogenative cyclization and their tunable photophysical and chemical properties by silyl groups.
abstract: A bit borane: Silicon-functionalized dibenzosilaborins were prepared by intramolecular B-H/C-H dehydrogenative cyclization of o-(silyl)(hydroboryl)benzenes. The hydrosilyl derivative (X=H) can be converted into the fluorosilane (X=F) and chlorosilane (X=Cl). UV/Vis and fluorescence spectra are influenced by the functional groups X on the silicon atom through σ*-π* conjugation.
authors.affiliation: Department of Chemistry, Graduate School of Science, Hiroshima University, Kagamiyama 1-3-1, Higashi-Hiroshima 739-8526 (Japan). kawachi@sci.hiroshima-u.ac.jp.
authors.forename: Atsushi
authors.initials: A
authors.lastname: Kawachi
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Morisaki
authors.forename: Tatsuya
authors.initials: T
authors.lastname: Hirofuji
authors.forename: Yohsuke
authors.initials: Y
authors.lastname: Yamamoto
keywords: boranes; conjugation; dehydrogenation; ring construction; silanes