Serendipitous Isolation of a Trinuclear Silver Complex Containing a Bridging Tridentate Cyanide

Abstract

The X-ray structure of a single crystal of a complex of formula C₃₄H₃₃Ag₃N₁₅O₆ is described (P 2₁/c, Z4, a 10·943(1), b 33·873(5), c 10·416(2) Å, β 102·54(1)°, R 0·0363). The asymmetric unit of this compound contains three silver atoms, two nitrate anions, a bridging tridentate cyanide ion, and one and a half molecules of the bridging tetrapodal ligand 1,2,4,5-tetrakis(pyrazol-1-ylmethyl)benzene. By virtue of the bridging nature of the ligand, these units further assemble into large macrocyclic rings, with a maximum dimension of >24 Å. These rings then interlock to produce an intriguing two-dimensional metallopolymeric network.