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Synthesis and spectroscopic characterization of new heteroleptic ruthenium(II) complexes incorporating 2-(2′-pyridyl) quinoxaline and 4-carboxy-2-(2′-pyridyl)quinoline

Citation:

Philippopoulos A, Falaras P, Chatzivasiloglou E, Igglessi-Markopoulou O, Likodimos V, Konti G-C. Synthesis and spectroscopic characterization of new heteroleptic ruthenium(II) complexes incorporating 2-(2′-pyridyl) quinoxaline and 4-carboxy-2-(2′-pyridyl)quinoline. Journal of Coordination Chemistry [Internet]. 2012;65:2535-2548.

Abstract:

Starting from cis-[Ru(dcbpyH 2) 2Cl 2] (1), two new heteroleptic ruthenium(II) complexes, [Ru(dcbpyH 2) 2(L 1)](NO 3) 2 (L 1=2- (2′-pyridyl)quinoxaline (2), and [Ru(dcbpyH 2) 2(L 2)](NO 3) 2 (L 2=4- carboxy-2-(2′-pyridyl)quinoline (4); dcbpyH 2=2,2′- bipyridine-4,4′-dicarboxylic acid), were synthesized and spectroscopically characterized. During the preparation of 2 and 4, the homoleptic [Ru(dcbpyH 2) 3]Cl 2 complex (3) was isolated as a side product. Characterization includes IR and Raman spectroscopy, UV-Vis, multinuclear NMR spectroscopy, elemental, and ESI-mass spectrometric analyses. © 2012 Taylor and Francis.

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