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. 2018 Feb 22;23(2):477. doi: 10.3390/molecules23020477

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© 2018 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).

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Scheme of synthesis of ligands 2-pyridin-2-yl-quinoline (L1) and 2-pyridin-2-yl-quinoxaline (L2) and diphenyl-(2-pyridin-2-yl-quinolin-6-yl)-amine (L3) (A); Scheme of synthesis of complexes [Ru(η⁶-cymene)(L1)Cl]BF₄ (TQ-1), [Ru(η⁶-cymene)(L2)Cl]BF₄ (TQ-2) and [Ru(η⁶-cymene)(L3)Cl]BF₄ (TQ-3) (B); ORTEP drawings of TQ-1, TQ-2 and TQ-3. Hydrogen atoms and BF₄ anion are omitted for clarity (C).