Strong coordination of tetraphenylborate anion to copper(I) bipyridine and phenanthroline-based complexes and its effect on catalytic activity in the cyclopropanation of styrene.
The synthesis, characterization, and cyclopropanation activity of tetrahedral copper(I) complexes with bipyridine- and phenanthroline-based ligands containing strongly coordinated tetraphenylborate anions are reported. Cu(I)(bpy)(BPh(4)), Cu(I)(phen)(BPh(4)), and Cu(I)(3,4,7,8-Me(4)phen)(BPh(4)) complexes are the first examples in which the BPh(4)(-) counterion chelates a transition metal center in bidentate fashion through eta(2) pi interactions with two of its phenyl rings.
Ricardo
Carolynne
C
Department of Chemistry and Biochemistry, Duquesne University, 600 Forbes Avenue, 308 Mellon Hall, Pittsburgh, Pennsylvania 15282, USA.
Matosziuk
Lauren M
LM
Evanseck
Jeffrey D
JD
Pintauer
Tomislav
T