Chelating and Bridging Modes of Coordination by 1,3-Bis(pyrazol-1-yl)propane; Coexistence of Discrete and Polymeric Metallosupramolecular Isomers within the Same Crystal

Abstract

1,3-Bis(pyrazol-1-yl)propane (1) reacts with zinc acetate and cadmium nitrate to give tetrahedral [Zn(1)(OAc)₂] and eight-coordinate [Cd(1)₂(NO₃)₂] mononuclear complexes (2) and (3), respectively. Reaction with silver nitrate results in the formation of an intriguing complex (4) that consists of discrete M₂L₂ binuclear units stacked between [ML]_n polymeric chains.