Synthesis and Crystal Structures of Manganese(II) and Cobalt(II) Complexes with 2, 6‐Dimethoxybenzoic Acid and Additional N‐Donor Ligands |
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| Authors: | Irina G Filippova Iurie L Malaestean Svetlana G Baca |
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| Institution: | 1. Institute of Applied Physics, ASM, Academiei 5, MD‐2028 Chisinau, Moldova;2. Institute of Chemistry, ASM, Academiei 3, MD‐2028 Chisinau, Moldova |
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| Abstract: | Three coordination compounds Mn3(dmb)6(H2O)4(4, 4′‐bpy)3(EtOH)]n ( 1 ) and M(dmb)2(pyz)2 (H2O)2] MII = Co ( 2 ), Mn ( 3 )] (Hdmb = 2, 6‐dimethoxybenzoic acid, 4, 4′‐bpy = 4, 4′‐bipyridine, pyz = pyrazine) were synthesized and characterized by single‐crystal X‐ray diffraction analysis. Compound 1 consists of infinite 1D polymeric chains, in which the metal entities are bridged by 4, 4′‐bpy ligands. There are four crystallographically independent MnII atoms in the linear chain with different coordination modes, which is only scarcely reported for linear polymers. The isostructural crystals of 2 and 3 are composed of neutral mononuclear complexes. In crystal the complexes are combined into chains by intermolecular O–H ··· N hydrogen bonds and π–π interactions between antiparallel pyrazine molecules. |
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| Keywords: | Carboxylate ligands Cobalt Coordination polymer Manganese N ligands |
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