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A Chelating Triscarbene Ligand and Its Hexacarbene Iron Complex
Author(s) -
Kernbach Ulrich,
Ramm Matthias,
Luger Peter,
Fehlhammer Wolf P.
Publication year - 1996
Publication title -
angewandte chemie international edition in english
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 0570-0833
DOI - 10.1002/anie.199603101
Subject(s) - tetraphenylborate , chelation , chemistry , tris , ligand (biochemistry) , chloride , cationic polymerization , medicinal chemistry , boron , cyclopentadienyl complex , inorganic chemistry , ion , polymer chemistry , organic chemistry , catalysis , receptor , biochemistry
A free tricarbene is most likely a long‐lived intermediate in the formation of the first hexacarbene iron complex 1 (R = Me) from trimethylated tris(1‐imidazolyl)borate, n ‐butyllithium, iron chloride, and tetraphenylborate. This tripodal C,C ′, C ″‐chelating ligand, for which the authors predict a brilliant future, is an isomer of Trofimenko's tris(1‐pyra‐zolyl)borate and represents a novel class of negatively charged six‐electron donors with the greatest possible similarity to the cyclopentadienyl anion.