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Synthesis, structure and property of manganese(II) complexes with mixed tetradentate imidazole-containing ligand and benzenedicarboxylate by Qin Hua; Zhi Su; Yue Zhao; Taka-aki Okamura; Guan-Cheng Xu; Wei-Yin Sun; Norikazu Ueyama is a Chemistry article available to read on EtoBox.

What is Synthesis, structure and property of manganese(II) complexes with mixed tetradentate imidazole-containing ligand and benzenedicarboxylate about?

Three new coordination complexes [Mn(L)(H 2 O) 2 ](1,4-BDC)Á2H 2 O (1), [Mn(L) 0.5 (1, 3) were synthesized by solvothermal reactions of 1,2,4,5-tetrakis(imidazol-1-ylmethyl)benzene (L) and 1,4-benzenedicarboxylic acid (1,4-H 2 BDC) or 1,2-benzenedicarboxylic acid (1,2-H 2 BDC) with Mn(II) salt, and characterized by single crystal X-ray diffraction, IR, thermogravimetric and elemental analyses. In complexes 1 and 3, each ligand L links four Mn(II) atoms to form two-dimensional (2D) cationic network with non-coordinated 1,4-BDC 2À and 1,2-HBDC À anions lying in the voids between the two adjacent layers, respectively. The 2D layers are further connected together by hydrogen bonds to give three-dimensional (3D) supramolecular structures. However, the 1,4-BDC 2À in 2 acts not only as counteranion, but also as bridging ligand leading to the formation of 2fold interpenetrated 3D framework with pcu (primitive cubic unit) topology. The Mn(II) atoms bridged by carboxylate groups in 2 show antiferromagnetic interactions.

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Author

Qin Hua; Zhi Su; Yue Zhao; Taka-aki Okamura; Guan-Cheng Xu; Wei-Yin Sun; Norikazu Ueyama

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 0020-1693)

Published

2010

Language

EN

Field

Chemistry (Physical Sciences)