An unprecedented trinucleating bridging mode (µ3-η1∶η1∶η1) of a tris(pyrazolyl)borate ligand in a trinuclear silver(I) complex
Abstract
The crystal structure of [Ag3(TpAn)2][ClO4], where TpAn is tris[3-(2-methoxyphenyl)pyrazol-1-yl]hydroborate, shows a unique trinucleating bridging coordination mode for the tris(pyrazolyl)borate: each of the two ligands coordinates one pyrazolyl donor to each of the three two-coordinate Ag(I) ions, affording a triangular complex in which each face is capped by a µ3-η1∶η1∶η1-tris(pyrazolyl)borate.