Two 3D noninterpenetrated chiral coordination polymers with uniform (103)-srs and (42.63.8)-sra nets

Two new noninterpenetrated three-dimensional chiral coordination polymers [Cu(L-cys)(H2O)](n) (1) and [Cd(L-cys)(H2O)](n) (2) (where H(2)cys = 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 mu(3)-bridge for 1 and a mu(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. (c) 2008 Elsevier B. V. All rights reserved.