Synthesis, structure and properties of delocalized transition metal chelates: Diazoketiminato chelates of Co(III) and Pt(II) |
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Authors: | Debprasad Patra Poulami Pattanayak Jahar Lal Pratihar Surajit Chattopadhyay |
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Institution: | aDepartment of Chemistry, University of Kalyani, Kalyani, West Bengal 741 235, India |
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Abstract: | The reactions of HL 1 where HL is 1N-(2-pyridyl-2-methyl)-2-arylazoaniline and is formulated as ArN = NC6H4N(H)(CH2C5H4N); Ar = C6H5 (for HL1) or p-MeC6H4 (for HL2) or p-ClC6H4 (for HL3)] with K2PtCl4 and Co(ClO4)3 · 6H2O afforded the (L)PtCl and (L)2Co]ClO4 complexes, respectively. The HL ligands bind the platinum(II) and cobalt(III) centres in a tridentate (N,N,N) fashion, forming new diazoketiminato chelates upon dissociating the amino proton. The X-ray structures of (L3)PtCl and (L3)2Co]ClO4 were determined. Redox properties of the new complexes have been examined. |
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Keywords: | 1N-(2-Pyridyl-2-methyl)-2-arylazo aniline Potassium tetrachloroplatinate Cobalt(III) perchlorate Diazoketiminato species |
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