title: Synthesis of the First Example of the 12-Vertex-closo/12-Vertex-nido Biscarborane Cluster by a Metal-Free B-H Activation at a Phosphorus(III) Center.
abstract: An unusual 12-vertex-closo-C2 B10 /12-vertex-nido-C2 B10 biscarborane cluster was synthesized through an unprecedented regioselective metal-free B-H activation by a sterically hindered P(III) center under mild conditions accompanied by cage-opening rearrangement. A combination of the electron-accepting properties of a carborane cage and steric enforcement of close interatomic contacts represent a new synthetic strategy for the activation of strong B-H bonds in carboranes.
authors.affiliation: Department of Chemistry and Biochemistry, University of South Carolina, 631 Sumter St., Columbia, SC, 29208, USA.
authors.forename: Yuen Onn
authors.initials: YO
authors.lastname: Wong
authors.affiliation: Department of Chemistry and Biochemistry, University of South Carolina, 631 Sumter St., Columbia, SC, 29208, USA.
authors.forename: Mark D
authors.initials: MD
authors.lastname: Smith
authors.affiliation: Department of Chemistry and Biochemistry, University of South Carolina, 631 Sumter St., Columbia, SC, 29208, USA. peryshkov@sc.edu.
authors.forename: Dmitry V
authors.initials: DV
authors.lastname: Peryshkov
keywords: B−H activation; boron; cage compounds; metal-free reaction; phosphanes