Unprecedented 7-connected 36·413·62 structural topology: Praseodymium-based coordination polymers built from mixed carboxylate ligands
摘要:
A new lanthanide coordination polymer [Pr(dpdc)(nta)](n) (1) (H(2)dpdc = 2,2'-diphenyldicarboxylate acid, Hnta = nicotinic acid) has been prepared and characterized by IR, element analysis, TGA, and single-crystal X-ray diffraction. 1 is built up from two different carboxylate ligands and shows an unusual two-dimensional (2D) 7-connected 3(6) center dot 4(13) center dot 6(2) topological network. The zero-field splitting parameter was obtained by varied magnetic susceptibilities measurement (2-300 K). (c) 2007 Elsevier B.V. All rights reserved.