Synthesis and studies on single crystal structure of [Ni(3,5-pdc)•H2O] (3,5-pdc=3,5-pyridinedicarboxylic acid)

The hydrothermal synthesis and structure of a novel 3-D coordination polymer [Ni(3,5-pdc).H2O] are reported (Fig. 2). The metal Ni2+ ion centers are in the octahedron coordination environment. Carboxylic groups of 3,5-pdc, present chelate and bridging modes, respectively. The chelate ones and nitrogen atoms connect Ni(II) centers to form layers parallel to X and Y axis, and the carboxylic groups of bridging mode link these layers to engender one-dimensional channels along the Z axis. Coordination water molecules fill these channels. (C) 2002 Elsevier Science B.V. All rights reserved.