Two 3D noninterpenetrated chiral coordination polymers with uniform (10 3)-srs and (4 2.6 3.8)- sra nets

Abstract

Two new noninterpenetrated three-dimensional chiral coordination polymers [Cu( l-cys)(H 2O)] n ( 1) and [Cd( l-cys)(H 2O)] n ( 2) (where H 2cys = cysteic acid) have been synthesized and characterized using single-crystal X-ray diffraction, elemental analysis, infrared spectroscopy, and thermogravimetric analysis. In the two complexes, l-cys acts as a μ 3-bridge for 1 and a μ 4-bridge for 2, respectively, to link metal centers in different modes, forming two different three-dimensional networks. The topological analysis of them shows that 1 can be simplified to a three-connected topology with the short symbol of 10 3 and the full vertex symbol of 10 5.10 5.10 5 while 2 a four-connected topology with the short symbol of 4 2.6 3.8 and the full vertex symbol of 4.6.4.6.6.8 2, respectively.