Diaqua-?(3)-oxido-hexa-kis(?(2)-trichloro-acetato-?O:O')(trichloro-acetato-?O)trichromium(III) acetonitrile tris-olvate.

ABSTRACT: In the crystal structure of the title compound, [Cr(3)(C(2)Cl(3)O(2))(7)O(H(2)O)(2)]·3CH(3)CN, the trinuclear [Cr(3)O(H(2)O)(2)(Cl(3)CCO(2))(7)] mol-ecule has an oxide O atom that is connected to one monodentate trichloro-acetate-coordinated and two water-coordinated Cr(III) atoms, the three metal atoms forming the points of an equilateral triangle. Each of the six remaining carboxyl-ate groups bridges a Cr-O-Cr fragment. The cluster inter-acts with the three solvent mol-ecules through water-acetonitrile O-H?N hydrogen bonds. Adjacent clusters are linked by a water-carboxylate O-H?O hydrogen bond to give a helical chain. One of the CCl(3) groups was found to be disordered over two positions, with the major component having a site-occupancy factor of 0.64?(1).

SUBMITTER: Soume BB 

PROVIDER: S-EPMC2960559 | biostudies-literature | 2008 Aug

REPOSITORIES: biostudies-literature