Nickel,copper and zinc complexes of (2-methoxycarbonylmethylimino-5-methyl-thiazol-3-yl)-acetic acid |
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| Authors: | W. Marjit Singh Jubaraj B. Baruah |
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| Affiliation: | Department of Chemistry, Indian Institute of Technology, Guwahati 781 039, India |
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| Abstract: | An ester of an imine containing dicarboxylic acid (2-methoxycarbonylmethylimino-5-methyl-thiazol-3-yl)-acetic acid methyl ester was prepared by the reaction of methylbromoacetate with 5-methyl-thiazol-2-ylamine. Base hydrolysis of this ester with sodium hydroxide gives the corresponding disodium salt of the diacid. The disodium salt of (2-methoxycarbonylmethylimino-5-methyl-thiazol-3-yl)-acetic acid (Na2L) forms a mononuclear hexacoordinated complex [Ni(L)(H2O)3]2H2O] with nickel, whereas it forms a pentacoordinated coordination polymer with zinc, having the composition {[Zn(L)(H2O)2]4H2O}n. A copper complex containing L and pyridine (py), with the composition [CuL(py)(H2O)2], has also been synthesized and characterized. |
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| Keywords: | Dicarboxylic acid Thiamine derivative Metal complexes Coordination polymer Pentacoordinated zinc Crystal structure |
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