Rhodium(III) complexes derived from complexation of metal with azomethine linkage of chitosan biopolymer Schiff base ligand: Spectral, thermal, morphological and electrochemical studies

Rhodium(III) complexes such as [Rh(Chi4Hy3mb)(H2O)2]Cl2, [Rh(Chi2Hymb)(H2O)2]Cl2, and [Rh(Chi2Hy3mb)(H2O)2]Cl2 were synthesized by metal chelation/complexation with chitosan Schiff base ligands. Stable Schiff base ligands were prepared by chemical modification of chitosan with aromatic aldehydes suc...

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Veröffentlicht in:Carbohydrate research 2020-01, Vol.487, p.107878-107878, Article 107878
Hauptverfasser: Vadivel, T., Dhamodaran, M., Kulathooran, S., Kavitha, S., Amirthaganesan, K., Chandrasekaran, S., Ilayaraja, S., Senguttuvan, S.
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Sprache:eng
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Zusammenfassung:Rhodium(III) complexes such as [Rh(Chi4Hy3mb)(H2O)2]Cl2, [Rh(Chi2Hymb)(H2O)2]Cl2, and [Rh(Chi2Hy3mb)(H2O)2]Cl2 were synthesized by metal chelation/complexation with chitosan Schiff base ligands. Stable Schiff base ligands were prepared by chemical modification of chitosan with aromatic aldehydes such as vanillin, salicylaldehyde and orthovanillin. These chitosan based Schiff base ligands were performed as bidentate ligands through azomethine nitrogen atom and methoxy/hydroxy oxygen atom. These bidentate ligands were favoured to the formation of stable coordination complex with metal ions. The series of Rhodium(III) complexes were characterized by Elemental analysis, FT-IR, UV–Vis spectroscopy, P-XRD and Thermo-gravimetric analysis (TGA). The electrochemical property of Rhodium(III) complexes were analyzed by cyclic voltametry. [Display omitted] •Chemical modification of chitosan was achieved well by cross linking with aromatic aldehydes.•Rh(III) complexes are thermally more stable.•Morphological changes were emulated through chemical modification/complexation.•The electrochemical property of rh(III) complexes were exposed in the presence of functional groups in bidentate ligands.
ISSN:0008-6215
1873-426X
DOI:10.1016/j.carres.2019.107878