Di-μ-acetato-bis-[(acetato-κO,O')bis-(iso-nicotinamide-κN)copper(II)].

ABSTRACT: The title centrosymmetric bimetallic complex, [Cu(2)(C(2)H(3)O(2))(4)(C(6)H(6)N(2)O)(4)], is composed of two copper(II) cations, four acetate anions and four isonicotinamide (INA) ligands. The asymmetric unit contains one copper cation to which two acetate units bind asymmetrically; one of the Cu-O distances is rather long [2.740 (2) Å], almost at the limit of coordination. These Cu-O bonds define an equatorial plane to which the Cu-N bonds to the INA ligands are almost perpendicular, the Cu-N vectors subtending angles of 2.4 (1) and 2.3 (1)° to the normal to the plane. The metal coordination geometry can be described as a slightly distorted trigonal bipyramid if the extremely weak Cu-O bond is disregarded, or as a highly distorted square bipyramid if it is not. The double acetate bridge b

SUBMITTER: Perec M 

PROVIDER: S-EPMC2983640 | biostudies-literature | 2010 Feb

REPOSITORIES: biostudies-literature