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Cyanoscorpionate Ligands: Agostic Interactions in a Series of Metal Complexes Containing the Tris(4‐cyano‐3‐phenylpyrazolyl)borate and Bis(4‐cyano‐3‐phenylpyrazolyl)borate Ligands
Author(s) -
Kadel Lava R.,
Bullinger John R.,
Baum Robert R.,
Moore Curtis E.,
Tierney David L.,
Eichhorn David M.
Publication year - 2016
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.201501268
Subject(s) - chemistry , agostic interaction , boron , ligand (biochemistry) , transition metal , metal , tris , medicinal chemistry , stereochemistry , polymer chemistry , catalysis , organic chemistry , biochemistry , receptor
Scorpionate chemistry has long featured sandwich complexes with two trispyrazolylborate (Tp) or two bispyrazolylborate (Bp) ligands coordinated to a transition metal. Less common are complexes in which one Tp and one Bp ligand are coordinated to the metal. We report herein five such complexes of Ni II , Mn II , Co II , or Fe II involving Tp and Bp ligands comprising either 3‐phenyl‐4‐cyanopyrazole or 3‐phenylpyrazole, as well as a related Co II complex with two Tp ligands, one of which is coordinated in a κ 2 fashion. All complexes feature an agostic interaction with a B–H hydrogen atom.