Zn2Na2(BDC)3·(DMF)2·(m-H2O)2: rare 3D channel-structures with pendant DMF constructed by carboxyl group bridging heterometallic ions

A novel 3D microporous structure coordination polymer: Zn2Na2(BDC)3·(DMF)2·(m-H2O)2, which was constructed by carboxyl groups bridging heterometallic ions, was reported. Sodium ion and zinc ion were located in the distorted octahedral and the distorted tetrahedral coordination environment, respectively. They were bridged by H2O in m2-mode fashion. It was interesting to observe the pending DMF in the microporous. q 2003 Elsevier B.V. All rights reserved.