1. Pyridyl-imine-thioether complexes of ruthenium(II) : Synthesis, structure and optoelectronic and electron transfer properties
- Author
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Basab Adhikari, Shuvam Pramanik, Tapas Ghorui, Sima Roy, Ujjwal Das, and Kausikisankar Pramanik
- Subjects
crystal structure ,spectral properties ,C-S bond ,TD-DFT ,Ruthenium(II) ,metal redox ,thioether complex - Abstract
Department of Chemistry, Inorganic Chemistry Section, Jadavpur University, Kolkata-700 032, India E-mail : kpramanik@hotmail.com Reactions of alkyl/aryl (2-pyridylimine)phenyl thioether (LSR) with RuCl2 (PPh3 )3 in ethanolic medium afford thioether complexes of type [Ru(LSR)Cl(PPh3 )2 ]PF6 (R = benzyl, phenyl). The ligands behave as tridentate neutral NpyNimineSthioether donor retaining the C-S bond and bind to the metal atom in meridional fashion. The complexes were characterized by spectroscopic (IR, UV-Vis, and NMR) techniques. Crystallographic analysis reveals the octahedral geometry around ruthenium(II) with N2 SP2Cl coordination. Complexes display rich optoelectronic features including luminescence. The complexes are electro-active and show quasi-reversible response near 1.1 V vs SCE. Theoretical (DFT) analyses were performed to explore the electronic transition and electron transfer behaviour.
- Published
- 2015
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