title: Trihapto ligation of a borirene to a single metal atom: a heterocyclic analogue of the η³-cyclopropenyl ligand.
abstract: The first example of a complex containing an η(3)-coordinated borirene ligand bound to a single metal atom was prepared by photolytic transfer of an arylborylene ligand to diphenylacetylene and loss of three CO ligands from the precursor. The η(3)-borirene complex possesses a chromium(0) atom which is also bound to one phenyl group in an η(6) fashion. The complex was isolated in 15% yield along with the corresponding metal-free borirene, which was isolated in 62% yield. The bonding between the chromium center and the borirene ring was studied computationally by DFT methods.
authors.affiliation: Institut für Anorganische Chemie, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074 Würzburg (Germany) http://www-anorganik.chemie.uni-wuerzburg.de/Braunschweig/. h.braunschweig@uni-wuerzburg.de.
authors.forename: Holger
authors.initials: H
authors.lastname: Braunschweig
authors.forename: Rian D
authors.initials: RD
authors.lastname: Dewhurst
authors.forename: Krzysztof
authors.initials: K
authors.lastname: Radacki
authors.forename: Christopher W
authors.initials: CW
authors.lastname: Tate
authors.forename: Alfredo
authors.initials: A
authors.lastname: Vargas
keywords: borirenes; borylene transfer; chromium; terphenyl; η3 ligands