Synthesis,Characterization and X-ray Structures of 2,6-Diacetylpyridinebis(benzenesulfonylhydrazide) and its Zinc(II) Complex |
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Authors: | Juahir Yusnita Subramaniam Puvaneswary Mahmood Ameen Abdulla Ward T Robinson Hapipah Mohd Ali |
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Institution: | (1) Department of Chemistry, Faculty of Science, University of Malaya, 50603 Kuala Lumpur, Malaysia |
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Abstract: | Abstract 2,6-Diacetylpyridinebis(benzenesulfonylhydrazide) (2,6-DAPBSH) and its zinc(II) complex have been synthesized and characterized
by X-ray crystallography. The ligand crystallizes in the monoclinic crystal system, space group Cc, with cell parameter = 16.808(2) Ǻ, b = 16.328(2) Ǻ, c = 8.2670(11) Ǻ, β = 91.869(9)°, while the zinc(II) complex crystallizes in the orthorhombic crystal system, space group Pbcn, with cell parameters a = 14.5927(3) Ǻ, b = 9.6502(2) Ǻ, c = 20.5610(5) Ǻ. The metal center is seven-coordinate, with an approximate pentagonal bipyramidal configuration of the chelating
ligand and two apically coordinated DMSO molecules.
Graphical Abstract X-ray crystallographic study on the 2,6-diacetylpyridine—bis(benzenesulfonylhydrazonato-κ5
N′N′′N′′′O′O′′)]bis(dimethyl sulfoxide-κO)zinc(II) (Fig. 1) shows that the complex is a seven-coordinate, with an approximate pentagonal
bipyramidal configuration where the ligand coordinates to the zinc(II) ion as a pentadentate chelate via the pyridine nitrogen
atom, the two azomethine nitrogen atoms and the two sulfonyl oxygen atoms.
![MediaObjects/10870_2009_9540_Figa_HTML.gif](/content/50437q8509264763/MediaObjects/10870_2009_9540_Figa_HTML.gif) |
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Keywords: | 2 6-Diacetylpyridinebis(benzenesulfonylhydrazide) Zinc(II) complex Pentagonal bipyramidal |
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