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Ruthenium(II) bipyridine complexes bearing quinoline–azoimine (NN′N″) tridentate ligands : Synthesis, spectral characterization, electrochemical properties and single-crystal X-ray structure analysis

Ruthenium(II) bipyridine complexes bearing quinoline–azoimine (NN′N″) tridentate ligands : Synthesis, spectral characterization, electrochemical properties and single-crystal X-ray structure analysis

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AL-NOAIMI, Mousa, Obadah S. ABDEL-RAHMAN, Ismail I. FASFOUS, Mohammad EL-KHATEEB, Firas A. AWWADI, Ismail WARAD, 2014. Ruthenium(II) bipyridine complexes bearing quinoline–azoimine (NN′N″) tridentate ligands : Synthesis, spectral characterization, electrochemical properties and single-crystal X-ray structure analysis. In: Spectrochimica Acta Part A : Molecular and Biomolecular Spectroscopy. 125, pp. 375-383. ISSN 1386-1425. eISSN 1873-3557. Available under: doi: 10.1016/j.saa.2014.01.075

@article{AlNoaimi2014Ruthe-30426, title={Ruthenium(II) bipyridine complexes bearing quinoline–azoimine (NN′N″) tridentate ligands : Synthesis, spectral characterization, electrochemical properties and single-crystal X-ray structure analysis}, year={2014}, doi={10.1016/j.saa.2014.01.075}, volume={125}, issn={1386-1425}, journal={Spectrochimica Acta Part A : Molecular and Biomolecular Spectroscopy}, pages={375--383}, author={Al-Noaimi, Mousa and Abdel-Rahman, Obadah S. and Fasfous, Ismail I. and El-khateeb, Mohammad and Awwadi, Firas A. and Warad, Ismail} }

Warad, Ismail El-khateeb, Mohammad El-khateeb, Mohammad Fasfous, Ismail I. Abdel-Rahman, Obadah S. Al-Noaimi, Mousa Awwadi, Firas A. Fasfous, Ismail I. eng Al-Noaimi, Mousa Abdel-Rahman, Obadah S. 2015-03-19T12:24:07Z Warad, Ismail 2014 Four octahedral ruthenium(II) azoimine–quinoline complexes having the general molecular formula [RuII(Lsingle bondY)(bpy)Cl](PF<sub>6</sub>) {Lsingle bondY = YC<sub>6</sub>H<sub>4</sub>Ndouble bond; length as m-dashNC(COCH<sub>3</sub>)double bond; length as m-dashNC<sub>9</sub>H<sub>6</sub>N, Y = H (1), CH<sub>3</sub> (2), Br (3), NO<sub>2</sub> (4) and bpy = 2,2′-bipyrdine} were synthesized. The azoimine–quinoline based ligands behave as NN′N″ tridentate donors and coordinated to ruthenium via azo-N′, imine-N′ and quinolone-N″ nitrogen atoms. The composition of the complexes has been established by elemental analysis, spectral methods (FT-IR, electronic, <sup>1</sup>H NMR, UV/Vis and electrochemical (cyclic voltammetry) techniques. The crystal structure of complex 1 is reported. The Ru(II) oxidation state is greatly stabilized by the novel tridentate ligands, showing Ru(III/II) couples ranging from 0.93–1.27 V vs. Cp<sub>2</sub>Fe/Cp<sub>2</sub>Fe<sup>+</sup>. The absorption spectrum of 1 in dichloromethane was modeled by time-dependent density functional theory (TD-DFT). Awwadi, Firas A. 2015-03-19T12:24:07Z Ruthenium(II) bipyridine complexes bearing quinoline–azoimine (NN′N″) tridentate ligands : Synthesis, spectral characterization, electrochemical properties and single-crystal X-ray structure analysis

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