ZINC HALIDE COMPLEXES OF THIONICOTINAMIDE; CRYSTAL STRUCTURE OF DICHLORIDO BIS(THIONICOTINAMIDE-kN)ZINC(II)
M. Akhtar1, M. R. Malik1, M. N. Tahir2, S. Nadeem1, M. Altaf3, M. Sohail3, S. Ali1, S. Ahmad4
1Quaid-i-Azam University, Islamabad, Pakistan
2University of Sargodha, Sargodha, Pakistan
3King Fahd University of Petroleum and Minerals, Dhahran, Saudi Arabia
4Prince Sattam bin Abdulaziz University, Al-Kharj, Saudi Arabia
Keywords: zinc(II), thionicotinamide, NMR spectroscopy, crystal structure
Abstract
Zinc halide complexes of thionicotinamide (TNA) having the general formula [Zn(TNA)2X2] (X = Cl-, Br-, I-) are prepared and characterized by thermal analysis, IR and NMR spectroscopy. The crystal structure of one of them, dichloridobis(thionicotinamide-kN)zinc(II), [Zn(TNA)2Cl2] (1), is determined using X-ray crystallography. In 1, the zinc atom is coordinated by two thionicotinamide ligands through nitrogen atoms and two chloride ions in a distorted tetrahedral coordination environment. The molecular structure of the complex is stabilized through intermolecular hydrogen bonding.
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