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Synthesis and structural characterization of mixed ligand η-2-hydroxyacetophenone complexes of cobalt(III) |
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| Authors: | Nijhuma Mondal Dilip K Dey Samiran Mitra K M Abdul Malik |
| Institution: | a Department of Chemistry, Jadavpur University, Calcutta 700 032, India b Department of Chemistry, Cardiff University, PO Box 912, Park Place, Cardiff, CF10 3TB, UK |
| Abstract: | A tridentate Schiff base ligand (CH3)2NCH2CH2N=C(CH3)C6H4OH)] (LH) has been synthesized from 2-hydroxyacetophenone and 2-dimethylaminoethylamine. This ligand forms the neutral complexes Co(L)(N3){o-(CH3C=O)C6H4O}] (1) and Co(L)(SCN){o-(CH3C=O)C6H4O}]·1/2H2O (2) in presence of equivalent amount of Co(II) acetate, and sodium azide for 1 and sodium thiocyanate for 2. The complexes have been characterized by spectroscopic and crystallographic methods. The coordination geometry around Co(III) in both the complexes is distorted octahedral with one tridentate ligand L, one bidentate 2-hydroxyacetophenone and one monodentate azide for 1 and thiocyanate for 2. The azide and thiocyanate ligands in the two complexes occupy different positions relative to the coordination sites of L. |
| Keywords: | Cobalt 2-Hydroxyacetophenone Azide Thiocyanate Crystal structure |
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