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A new trinuclear zinc complex Zn3(2,2?-bipy)2(3,5-DMBA)6·(H2O)1.5(1) with 3,5-dimethylbenzoic acid(3,5-DMBA) and 2,2?-bipyridine as ligands has been synthesized in the mixed solvents of methanol and water. It crystallizes in the monoclinic space group C2/c with a = 31.1497(15), b = 11.7576(6), c = 20.9049(10) ?, β = 118.4550(10)o, V = 6731.4(6) ?3, Dc = 1.412 g/cm3, Z = 4, F(000) = 2972, GOOF = 1.069, the final R = 0.0667 and w R = 0.1917. The whole molecule consists of three zinc ions, six 3,5-DMBA molecules, two 2,2?-bipyridine molecules and one and half water molecules, in which three zinc ions are bridged by six μ2-η1:η0-carboxylate groups of 3,5-DMBA-. The Zn(1) atom is centrosymmetric, and adopts a distorted octahedral Zn O6 geometry, while the Zn(2) gives a distorted square pyramidal Zn O3N2 geometry. The spectroscopic characterization and thermal stability properties of the complex were investigated.
A New trinuclear zinc complex Zn3 (2,2-dibipy) 2 (3,5-DMBA) 6 · (H2O) 1.5 (1) with 3,5-dimethylbenzoic acid -bipyridine as ligands has been synthesized in the mixed solvents of methanol and water. It crystallizes in the monoclinic space group C2 / c with a = 31.1497 (15), b = 11.7576 (6), c = 20.9049 = 118.4550 (10) o, V = 6731.4 (6)? 3, Dc = 1.412 g / cm3, Z = 4, F000 = 2972, GOOF = 1.069, the final R = 0.0667 and wR = 0.1917. whole molecule consists of three zinc ions, six 3,5-DMBA molecules, two 2,2-bipyridine molecules and one and half water molecules, in which three zinc ions are bridged by six μ 2 -η 1: η 0-carboxylate groups of 3 , 5-DMBA-. The Zn (1) atom is centrosymmetric, and adopts a distorted octahedral Zn O6 geometry, while the Zn (2) gives a distorted square pyramidal Zn O3N2 geometry. The spectroscopic characterization and thermal stability properties of the complex were investigated.