Syntheses and Characterizations of Two New Coordination Polymers Based on Dicarboxylate and Nitrogen-contained Mixed Ligands

摘要

Two new carboxylate coordination polymers [Ni（2,3＇-oba）（bib）]n] and [Mn（2,4＇-oba）（bib）0.5]n（2,3＇-oba = 2-（3-carboxyphenoxy）benzoic acid,2,4＇-oba = 2-（4-carboxyphenoxy） ben-zoic acid and bib = 1,4-bis（2-methyl-imidazol-yl）butane） have been synthesized and characterized by elemental analysis,IR and X-ray single-crystal diffraction studies.Compound 1 crystallizes in monoclinic,space group P21/c,while compound 2 in the triclinic space group P.Compound 1 displays a one-dimensional ladder-like chain.The dinuclear paddle-wheel secondary building units（SBUs） constructed by four 2,4＇-oba2-ligands in compound 2 are linked by bib into a 2D（4,4） layer structure.