RUTHENIUM CARBONYL (cas 15243-33-1) complexes bearing bidentate pyridine-alkoxide ligands: Synthesis, crystal structures and reactivity

Add time:08/02/2019    Source:sciencedirect.com

The reactions of pyridine alcohols PyCH2CH(Ar)OH [Ar = Ph (1), 4-CH3C6H4 (2), 4-ClC6H4 (3)], and PyCH2C(CH3)2OH (4) with Ru3(CO)12 in refluxing toluene gave a series of RUTHENIUM CARBONYL (cas 15243-33-1) complexes PyCH = C(Ph)O][PyCH = C(Ph))Ru(CO)2 (5) and [PyCH2CH(Ph)O]2Ru3(CO)8 (6), [PyCH = C(4-CH3C6H4)O]2Ru3(CO)8 (7), [PyCH2CH(4-ClC6H4)O]2Ru3(CO)8 (8) and [PyCH2C(CH3)2O]Ru3(CO)8 (9) respectively. Five new complexes 5–9 were characterized by elemental analysis, IR, 1H NMR and 13C NMR spectroscopy. The crystal structures of complexes 5–8 were determined by X-ray crystal diffraction analysis. Moreover, the reactivity of complex 6 had been investigated, when 6 was treated with cyclopentadiene in refluxing toluene, dinuclear metal carbonyl complexes [(η5-C5H5)Ru(CO)]2(μ-CO)2 (10) was obtained. Similar treatment of 6 with indene gave the product [(η5-C9H7)Ru(CO)]2(μ-CO)2 (11).

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