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Crystals 2017, 7(1), 32; doi:10.3390/cryst7010032

Synthesis, Crystal Structure, Luminescence and Magnetism of Three Novel Coordination Polymers Based on Flexible Multicarboxylate Zwitterionic Ligand

1,†
,
1,†
,
2,†
and
1,*
1
Key Laboratory of Medicinal Chemistry for Natural Resource Education Ministry, School of Chemical Science and Technology, Yunnan University, Kunming 650091, China
2
Key Laboratory of Comprehensive Utilization of Mineral Resource in Ethnic Regions, Key Laboratory of Resource Clean Conversion in Ethnic Regions, Education Department of Yunnan, School of Chemistry & Environment, Yunnan Minzu University, Kunming 650500, China.
Those authors contributed equally to this paper.
*
Author to whom correspondence should be addressed.
Academic Editor: Helmut Cölfen
Received: 15 December 2016 / Revised: 12 January 2017 / Accepted: 16 January 2017 / Published: 20 January 2017
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Abstract

Three novel zwitterionic coordination polymers, namely, {[Zn(HCbdcp)2]·H2O} (1), {[Mn(Cbdcp)]·3H2O} (2) and {[Cu2(Cbdcp)(HCbdcp)Cl·H2O]·2H2O} (3), Cbdcp = 3,5-dicarboxy-1-(4-carboxybenzyl)pyridin-1-ium, have been prepared by a hydrothermal method and characterized by X-ray single crystal diffraction analysis, powder X-ray diffraction analysis, IR spectroscopy, and thermogravimetric analysis. With the changing of metal centers, these complexes show distinct structures: a mononuclear 2D 44-sql network for 1, a 3D 6,6-connected-type topology for 2 and a novel dinuclear 2D layer for 3. These diverse architectures prove that coordination geometry of metal ions, coordination modes of carboxylate groups and the rotationally flexible CH2 linker played significant roles in the construction of CPs; moreover, they also indicated that H3CbdcpCl is an ideal organic candidate for the building of novel structures. The solid-state luminescent properties of complexes 13 were investigated, respectively. In addition, the magnetic properties of 2 and 3 were studied and both of them exhibit antiferromagnetic behaviors. View Full-Text
Keywords: zwitterionic ligand; crystal structure; coordination polymer; luminescence; magnetic property zwitterionic ligand; crystal structure; coordination polymer; luminescence; magnetic property
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Ma, Y.; Du, L.; Wang, K.; Zhao, Q. Synthesis, Crystal Structure, Luminescence and Magnetism of Three Novel Coordination Polymers Based on Flexible Multicarboxylate Zwitterionic Ligand. Crystals 2017, 7, 32.

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