Research Article: Diaqua­bis­[1,2-bis­(pyridin-4-yl)ethene]­bis­[2-(4-carboxy­phen­yl)acetato]­cobalt(II)

Date Published: July 01, 2011

Publisher: International Union of Crystallography

Author(s): Wei-Hua Yu, Jian-Lan Liu, Xiao-Ming Ren.


The asymmetric unit of the title compound, [Co(C9H7O4)2(C12H10N2)2(H2O)2], consists of one Co2+ ion, one mono-deprotonated 2-(4-carboxyl­atophen­yl)acetate carboxylic acid, one 1,2-bis­(pyridin-4-yl)ethane mol­ecule and one water mol­ecule. The CoII atom is situated on a crystallographic center of inversion and is octa­hedrally coordinated by two O atoms from two anions, two N atoms of two 1,2-bis­(pyridin-4-yl)ethane mol­ecules and two O atoms from two water mol­ecules. A three-dimensional network is established by inter­molecular O—H⋯O and O—H⋯N hydrogen bonds.

Partial Text

For general background to the design of metal-organic supra­molecular solids with potential functionality, see: Moulton & Zaworotko (2001 ▶); Janiak (2003 ▶). For weak non-covalent inter­actions in supra­molecular solids, see: Hosseini (2005 ▶); Nishio (2004 ▶). For metal-organic supra­molecular frameworks based on organic connectors containing pyridyl and/or carboxyl­ate groups, see: Brammer (2004 ▶).




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