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Trihapto Ligation of a Borirene to a Single Metal Atom: A Heterocyclic Analogue of the η 3 ‐Cyclopropenyl Ligand
Author(s) -
Braunschweig Holger,
Dewhurst Rian D.,
Radacki Krzysztof,
Tate Christopher W.,
Vargas Alfredo
Publication year - 2014
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201402815
Subject(s) - diphenylacetylene , ligand (biochemistry) , chromium , ring (chemistry) , yield (engineering) , atom (system on chip) , metal , chemistry , group (periodic table) , center (category theory) , crystallography , stereochemistry , materials science , organic chemistry , metallurgy , catalysis , biochemistry , receptor , computer science , embedded system
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.