Abstract
A tetranuclear CuICuII mixed oxidation state complex, [CuII 2(μ-I)2CuI 2(μ-I)2(phenP)2I2] (phenPE: 2-(1H-pyrazol-1-yl)-1,10-phenanthroline), has been prepared and its crystal structure is determined by X-ray crystallography. In the complex, CuII is a distorted square pyramid and CuI is a distorted trigonal planar coordination environment; CuII and CuI are bridged by iodide. It is rare to form a CuII-iodide bond and for CuII and CuI to be bridged by iodide. In the crystal, there is a slipped π–π stacking between adjacent CuII complexes, which resulted in the formation of the 1-D chain along the c axis. The fitting for the variable-temperature magnetic susceptibility data gave magnetic coupling constant 2J = −1.16 cm−1 and it may be ascribed to the intermolecular π–π magnetic coupling pathway.
Acknowledgments
This work was supported by the National Natural Science Foundation of China (Grant no. 20971080), the Natural Science Foundation of Shandong Province (Grant no. ZR2010BL016), and the Project of Shandong Province Higher Educational Science and Technology Program (Grant no. J13LD53).