Tetra-kis[?-4-(diethyl-amino)benzoato-?O:O']bis-[(N,N-diethyl-nicotinamide-?N)zinc(II)].

ABSTRACT: In the centrosymmetric binuclear title complex, [Zn(2)(C(11)H(14)NO(2))(4)(C(10)H(14)N(2)O)(2)], the two Zn(II) ions [Zn?Zn = 2.8874?(3)?Å] are bridged by four 4-(diethyl-amino)benzoate (DEAB) ligands. The four nearest O atoms around each Zn(II) ion form a distorted square-planar arrangement, the distorted square-pyramidal coordination being completed by the pyridine N atom of an N,N-diethyl-nicotinamide (DENA) ligand at a distance of 2.0484?(12)?Å. The dihedral angle between the benzene ring and the carboxyl-ate group is 4.89?(6)° in one of the independent DEAB ligands and 7.13?(7)° in the other. The benzene rings of the two independent DEAB ligands are oriented at a dihedral angle of 86.58?(5)°. The pyridine ring is oriented at dihedral angles of 31.17?(4) and 58.38?(4)° with respect to the two benzene rings. In the crystal, weak inter-molecular C-H?O inter-actions link the mol-ecules into a three-dimensional network. Two weak C-H?? inter-actions are also present. The two ethyl groups of one of the DEAB ligands are disordered over two orientations, with occupancy ratios of 0.798?(5):0.202?(5) and 0.890?(5):0.110?(5).

SUBMITTER: Hokelek T 

PROVIDER: S-EPMC2977087 | biostudies-other | 2009

REPOSITORIES: biostudies-other