Syntheses and X-ray crystallographic studies of {[Ni(en)2(pot)2]0.5CHCl3} and [Ni(en)2](3-pytol)2 |
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| Authors: | M Singh AK Pandey RJ Butcher NK Singh |
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| Institution: | 1. Department of Chemistry, Banaras Hindu University, Varanasi 221005, India;2. Department of Chemistry, Howard University, 525 College Street NW, Washington, DC 20059, USA;3. UP (PG) College, Varanasi 221002, India |
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| Abstract: | Two novel Ni(II) complexes {Ni(en)2(pot)2]0.5CHCl3} (3) {pot = 5-phenyl-1,3,4-oxadiazole-2-thione} (1) and Ni(en)2](3-pytol)2 (4) {3-pytol = 5-(3-pyridyl)-1,3,4-oxadiazole-2-thiol} (2) have been synthesized using en as coligand. The metal complexes have been characterized by physical and analytical techniques and also by single crystal X-ray studies. The complexes 3 and 4 crystallize in monoclinic system with space group P21/a and P121/c, respectively. The complex 3 has a slightly distorted octahedral geometry with trans (pot)− ligands while 4 has a square planar geometry around the centrosymmetric Ni(II) center with ionically linked trans (3-pytol)− ligands. The π?π (face to face) interaction plays an important role along with hydrogen bondings to form supramolecular architecture in both complexes. |
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| Keywords: | Ni(II) 1 3 4-oxadiazole complexes Mixed-ligand complexes en complexes |
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