Two-dimensional Copper Coordination Polymers Based on Paddle-Wheel Type Secondary Building Units of Cu_2(CO_2R)_4:[Cu(l,3-BDC)(H_2O)](centre dot)2H_2O and [Cu_2(OBC)_2(H_20)_2](centre dot)H_20(1,3-BDC = 1,3-benzenedicarboxylate;OBC = 4,4'-oxybis(benz

摘要

Coordination polymers with a variety of cavities or channels have got continuous attraction due to their useful zeolite-like properties and potential applications as functional materials.In designing extended porous coordination polymers,the selection of appropriate ligands is crucial to determining the structural outcome of target polymers.In this context,the concept of"node-spacer",in which the node corresponds to a metal(or a metal complex)and the spacer to a linking ligand,has become a fundamental tool in the rational design of crystalline architectures.