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Synthesis and Structure of the First Terminal Borylene Complexes
Author(s) -
Braunschweig Holger,
Kollann Carsten,
Englert Ulli
Publication year - 1998
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/(sici)1521-3773(19981204)37:22<3179::aid-anie3179>3.0.co;2-z
Subject(s) - boron , crystallography , tungsten , terminal (telecommunication) , chemistry , atom (system on chip) , ligand (biochemistry) , metal , stereochemistry , crystal structure , organic chemistry , telecommunications , biochemistry , receptor , computer science , embedded system
A nearly linear arrangement is observed for the three atoms in the central W‐B‐N unit of the tungsten complex [(CO) 5 WBN(SiMe 3 ) 2 ] ( 1 ) in the crystal (W‐B‐N 177.9°; see picture). This compound along with its Cr analogue represent the first examples of terminal borylene complexes with a two‐coordinate metal‐bound boron atom. The geometries of the axial and equatorial CO groups in 1 are similar, and thus indicate that there is no trans effect of the borylene ligand.