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Title: Synthesis, structures and magnetic properties of two 3D 3,4-pyridinedicarboxylate bridged manganese(II) coordination polymers incorporating 1D helical Mn(carboxylate){sub 2} chain or Mn{sub 3}(OH){sub 2} chain

Abstract

The hydrothermal reactions of MnCl{sub 2}.4H{sub 2}O, 3,4-pyridinedicarboxylic acid (3,4-pydaH{sub 2}) and triethylamine in aqueous medium yield two 3D metal-organic hybrid materials, [Mn(3,4-pyda)] (1) and [Mn{sub 3}(OH){sub 2}(3,4-pyda){sub 2}(H{sub 2}O){sub 2}] (2), respectively. In both complexes, each 3,4-pyda acts as a pentadentate ligand to connect five Mn(II) atoms via the pyridyl group and the two {mu}{sub 2}-carboxylate groups (one in syn,anti-mode and one in syn-syn mode for 1 and both in syn,anti-mode for 2). Complex 1 possesses an interesting 3D coordination polymeric structure incorporating 1D helical Mn({mu}{sub 2}-carboxylate){sub 2} chain units, in which each Mn(II) atom is coordinated in less common square pyramidal geometry to four carboxylato oxygen atoms and one pyridyl nitrogen atom. Each 3,4-pyda links three helical Mn({mu}{sub 2}-carboxylate){sub 2} chains and each Mn({mu}{sub 2}-carboxylate){sub 2} chain is linked by other eight helical Mn({mu}{sub 2}-carboxylate){sub 2} chains via sharing 3,4-pyda bridges. Complex 2 is a 3D coordination network consisting of 1D Mn{sub 3}(OH){sub 2} chains and 3,4-pyda bridges. The repeating trimeric structural unit in the manganese(II) hydroxide chain consists of two edge-sharing symmetry-related manganese octahedra linked via {mu}{sub 3}-OH to a vertex of Mn{sub 2} octahedron. Each 3,4-pyda links three Mn{sub 3}(OH){sub 2} chains and each Mn{sub 3}(OH){submore » 2} chain is linked by other six Mn{sub 3}(OH){sub 2} chains via 3,4-pyda bridges, resulting in a 3D coordination solid. Magnetic measurements reveal that a weak antiferromagnetic interaction between the Mn{sup II} ions occurs in complex 1 and a 3D magnetic ordering at about 7.0K in complex 2.« less

Authors:
 [1];  [1];  [1]
  1. School of Chemistry and Chemical Engineering, Zhongshan Sun Yat-Sen University, Guangzhou 510275 (China)
Publication Date:
OSTI Identifier:
20725929
Resource Type:
Journal Article
Journal Name:
Journal of Solid State Chemistry
Additional Journal Information:
Journal Volume: 178; Journal Issue: 5; Other Information: DOI: 10.1016/j.jssc.2005.02.025; PII: S0022-4596(05)00078-2; Copyright (c) 2005 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0022-4596
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; ANTIFERROMAGNETISM; INTERACTIONS; LIGANDS; MAGNETIC PROPERTIES; MANGANESE COMPLEXES; POLYMERS; SYNTHESIS

Citation Formats

Mingliang, Tong, Jing, Wang, and Sheng, Hu. Synthesis, structures and magnetic properties of two 3D 3,4-pyridinedicarboxylate bridged manganese(II) coordination polymers incorporating 1D helical Mn(carboxylate){sub 2} chain or Mn{sub 3}(OH){sub 2} chain. United States: N. p., 2005. Web. doi:10.1016/j.jssc.2005.02.025.
Mingliang, Tong, Jing, Wang, & Sheng, Hu. Synthesis, structures and magnetic properties of two 3D 3,4-pyridinedicarboxylate bridged manganese(II) coordination polymers incorporating 1D helical Mn(carboxylate){sub 2} chain or Mn{sub 3}(OH){sub 2} chain. United States. doi:10.1016/j.jssc.2005.02.025.
Mingliang, Tong, Jing, Wang, and Sheng, Hu. Sun . "Synthesis, structures and magnetic properties of two 3D 3,4-pyridinedicarboxylate bridged manganese(II) coordination polymers incorporating 1D helical Mn(carboxylate){sub 2} chain or Mn{sub 3}(OH){sub 2} chain". United States. doi:10.1016/j.jssc.2005.02.025.
@article{osti_20725929,
title = {Synthesis, structures and magnetic properties of two 3D 3,4-pyridinedicarboxylate bridged manganese(II) coordination polymers incorporating 1D helical Mn(carboxylate){sub 2} chain or Mn{sub 3}(OH){sub 2} chain},
author = {Mingliang, Tong and Jing, Wang and Sheng, Hu},
abstractNote = {The hydrothermal reactions of MnCl{sub 2}.4H{sub 2}O, 3,4-pyridinedicarboxylic acid (3,4-pydaH{sub 2}) and triethylamine in aqueous medium yield two 3D metal-organic hybrid materials, [Mn(3,4-pyda)] (1) and [Mn{sub 3}(OH){sub 2}(3,4-pyda){sub 2}(H{sub 2}O){sub 2}] (2), respectively. In both complexes, each 3,4-pyda acts as a pentadentate ligand to connect five Mn(II) atoms via the pyridyl group and the two {mu}{sub 2}-carboxylate groups (one in syn,anti-mode and one in syn-syn mode for 1 and both in syn,anti-mode for 2). Complex 1 possesses an interesting 3D coordination polymeric structure incorporating 1D helical Mn({mu}{sub 2}-carboxylate){sub 2} chain units, in which each Mn(II) atom is coordinated in less common square pyramidal geometry to four carboxylato oxygen atoms and one pyridyl nitrogen atom. Each 3,4-pyda links three helical Mn({mu}{sub 2}-carboxylate){sub 2} chains and each Mn({mu}{sub 2}-carboxylate){sub 2} chain is linked by other eight helical Mn({mu}{sub 2}-carboxylate){sub 2} chains via sharing 3,4-pyda bridges. Complex 2 is a 3D coordination network consisting of 1D Mn{sub 3}(OH){sub 2} chains and 3,4-pyda bridges. The repeating trimeric structural unit in the manganese(II) hydroxide chain consists of two edge-sharing symmetry-related manganese octahedra linked via {mu}{sub 3}-OH to a vertex of Mn{sub 2} octahedron. Each 3,4-pyda links three Mn{sub 3}(OH){sub 2} chains and each Mn{sub 3}(OH){sub 2} chain is linked by other six Mn{sub 3}(OH){sub 2} chains via 3,4-pyda bridges, resulting in a 3D coordination solid. Magnetic measurements reveal that a weak antiferromagnetic interaction between the Mn{sup II} ions occurs in complex 1 and a 3D magnetic ordering at about 7.0K in complex 2.},
doi = {10.1016/j.jssc.2005.02.025},
journal = {Journal of Solid State Chemistry},
issn = {0022-4596},
number = 5,
volume = 178,
place = {United States},
year = {2005},
month = {5}
}