Poly[diaquabis[μ-1-hydroxy-2-(imidazol-3-ium-1-yl)ethane-1,1-diyldiphosphonato]tricopper(II)]

• Main Authors: Guanfang Su, Dajun Sun, Liying Han, Hu Zang, Yaping Li
• Format: Article
• Language: English
• Published: International Union of Crystallography 2010-12-01
• Series: Acta Crystallographica Section E
• Online Access: http://scripts.iucr.org/cgi-bin/paper?S1600536810046398

In the title coordination polymer, [Cu3(C5H7N2O7P2)2(H2O)2]n, one CuII atom is five-coordinated by five O atoms from three 1-hydroxy-2-(imidazol-3-ium-1-yl)ethane-1,1-diyldiphosphonate (L) ligands in a distorted square-pyramidal geometry. The other CuII atom, lying on an inversion center, is six-coordinated in a distorted octahedral geometry by four O atoms from two L ligands and two O atoms from two water molecules. The five-coordinated CuII atoms are linked by phosphonate O atoms of the L ligands, forming a polymeric chain. These chains are further linked by the six-coordinated Cu atoms into a layer parallel to (overline{1}01). N—H...O and O—H...O hydrogen bonds connect the layers into a three-dimensional supramolecular structure.