Amino acid complexes of ruthenium: synthesis, characterization and cyclic voltammetric studies |
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| Authors: | Kanchana Majumder Samaresh Bhattacharya |
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| Institution: | a Department of Chemistry, Inorganic Chemistry Section, Jadavpur University, Calcutta 700032, India |
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| Abstract: | Reaction of α-amino acids (HL) with Ru(PPh3)3Cl2] in the presence of a base afforded a family of complexes of type Ru(PPh3)2(L)2]. These complexes are diamagnetic (low-spin d6, S=0) and show ligand-field transitions in the visible region. 1H and 31P NMR spectra of the complexes indicate the presence of C2 symmetry. Cyclic voltammetry on the Ru(PPh3)2(L)2] complexes show a reversible ruthenium(II)–ruthenium(III) oxidation in the range 0.30–0.42 V vs. SCE. An irreversible ruthenium(III)–ruthenium(IV) oxidation is also displayed by two complexes near 1.5 V vs. SCE. |
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| Keywords: | Ruthenium α -Amino acids Synthesis Characterization Electrochemistry |
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