Elizabeth R. Humphrey, Nicholas C. Harden, Leigh H. Rees, John C. Jeffery, Jon A. McCleverty and Michael D. Ward
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.