Unravelling antisymmetric exchange in a coordination polymer made of copper chloride and triazole

This study presents the synthesis, structural characterization and magnetic properties of a one-dimensional coordination polymer composed of copper(II) chloride and 1H-1,2,4-triazole. Crystals of the coordination polymer were synthesized in hydrochloric acid at room temperature. Single crystal X-ray diffraction reveals an array of copper atoms bridged by two chloride ions and a triazole ligand. Magnetization data on a single crystal show no hysteresis but deviate from the curves derived from the Ising Hamiltonian at low temperature, indicating the presence of antisymmetric exchange. This study highlights the importance of synthesizing large crystals of coordination polymers to facilitate detailed investigations into their magnetic properties.