Neutral ruthenium(II) complexes of phenylcyanamido ligands |
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| Institution: | 1. Department of Chemistry, Jahangirnagar University, Savar, Dhaka 1342, Bangladesh;2. Department of Chemistry, University College London, 20 Gordon Street London WC1H OAJ, UK;3. Department of Chemistry, King''s College London, Britannia House, 7 Trinity Street, London SE1 1DB, UK |
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| Abstract: | Neutral Ru(II) complexes with the formula trans-Ru(trpy*)(L2)(pcyd)] have been prepared, where trpy* = 4,4′,4″-tri-tert-butyl-terpyridine, L2 = 2-pyrazinecarboxylato (pca), 2-pyridinecarboxylato (pic), acetylacetonato (acac) and pcyd = 3-chlorophenylcyanamido (3-Clpcyd), 2,3-dichlorophenylcyanamido (2,3-Cl2pcyd), 2,4,6-trichlorophenylcyanamido (2,4,6- Cl3pcyd), 2,3,4,5-tetrachlorophenylcyanamido (2,3,4,5-Cl4pcyd) and 3,4,5-trimethoxyphenylcyanamido (3,4,5-(OMe)3pcyd). Spectroelectrochemistry was performed on these Ru(II) complexes to obtain the visible absorption spectrum of the Ru(III)–cyanamide ligand-to-metal charge transfer chromophore. The Ru(III)–cyanamide metal–ligand coupling elements of these complexes were compared to other Ru(III)–cyanamide complexes. |
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