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

ABSTRACT: In the centrosymmetric binuclear title complex, [Zn(2)(C(8)H(7)O(2))(4)(C(10)H(14)N(2)O)(2)], the Zn atoms [Zn?Zn' = 2.9494?(3)?Å] are bridged by four 4-methyl-benzoate (PMB) anions. The four nearest O atoms around each Zn(II) ion form a distorted square-planar arrangement, the octahedral coordin-ation being completed by the pyridine N atom of the N,N-diethyl-nicotinamide (DENA) ligand. Each Zn(II) ion is displaced by 0.3530?(1)?Å from the plane of the four O atoms. The dihedral angles between carboxyl-ate groups and their adjacent benzene rings are 5.88?(10) and 11.89?(9)°, while the benzene rings are oriented at a dihedral angle of 75.19?(4)°. The pyridine ring is oriented at dihedral angles of 38.28?(4) and 49.17?(4)° with respect to the benzene rings. In the crystal structure, weak inter-molecular C-H?O hydrogen bonds link the mol-ecules into a three-dimensional network. ?-? contacts between parallel benzene rings [centroid-centroid distance = 3.8388?(8)?Å] and between parallel pyridine rings [centroid-centroid distance = 3.4855?(7)?Å] may further stabilize the crystal structure.

SUBMITTER: Necefoglu H 

PROVIDER: S-EPMC2983782 | biostudies-literature | 2010

REPOSITORIES: biostudies-literature