Discrete and 1D Co(II) Coordination Compounds with Bridging Imidazole‐Functionalized Terpy

This is the authors' abstract. We don't add key points for this paper.

Solvothermal conditions enable the formation of polynuclear Co(II) compounds with 4′‐[p‐(Imidazol‐1‐yl)phenyl]‐2,2′:6′,2′′‐terpyridine (L) acting as a bridging ligand. 1D coordination polymer [Co2(L)2(Cl)4].5H2O, 1, and discrete [Co2(L)(Cl)4(DMF)]2, 2, can be selectively obtained by tuning the CoCl2/L ratio involved in the reaction. A peculiar feature in complex 2 is the occurrence of tetrahedral and octahedral Co centers bridged by a chloride atom, whereas Co(II) is six‐coordinated in 1. The crystal structures of both compounds have been characterized by single‐crystal X‐ray diffraction studies. Magnetic studies have evidenced a canted antiferromagnetic (i.e., weak ferromagnet) behavior for 2.