Poly[[diaqua[μ(5)-(R,S)-2-({2-[(1,2-di-carboxyl-atoeth-yl)amino]-eth-yl}amino)-butane-dioato]cobaltate(III)sodium] di-hydrate]

• Published in: Acta crystallographica. Section E, Structure reports online Structure reports online, 2011-11, Vol.67 (Pt 11), p.m1547-m1548
• Main Authors: Trunova, Olena K, Dudko, Anatolij V, Makotryk, Tamara O, Osadcha, Olena V, Pekhnyo, Vasily I, Shovkova, Ganna V
• Format: Article
• Language: English
• Subjects: Metal-Organic Papers
• ISSN: 1600-5368
• DOI: 10.1107/S160053681104013X

In the asymmetric unit of the title coordination polymer, {[CoNa(C(10)H(12)N(2)O(8))(H(2)O)(2)]·2H(2)O}(n), the Co(II) ion is coord-inated in a distorted octa-hedral environment, defined by two N atoms and four carboxyl-ate O atoms. Two Co(II) ions and two 2-({2-[(1,2-dicarboxyl-atoeth-yl)amino]-eth-yl}amino)-butane-dio-ate (EDDS) ligands form a dimeric complex dianion [Co(2)(EDDS)(2)]. These dimeric units are connected via Na(+) ions, forming a three-dimensional polymeric structure. In the crystal, the ligand N-H groups and the coordinated and solvent water mol-ecules are involved in inter-molecular N-H⋯O and O-H⋯O hydrogen bonding, reinforcing the three-dimensional polymeric structure.