Faculté des sciences

Study of half sandwich platinum group metal complexes containing tetradentate N-donor ligand bearing two di-pyridylamine units linked by an aromatic spacer

Gupta, Gajendra ; Sairem, Gloria ; Therrien, Bruno ; Babulal, Das ; Rao, Kollipara Mohan

In: Journal of Organometallic Chemistry, 2011, vol. 696, no. 3, p. 702-708

A general approach for the preparation of dinuclear η5- and η6-cyclic hydrocarbon platinum group metal complexes, viz. [(η6-arene)2Ru2 (NN∩NN)Cl2]2+ (arene = C6H6, 1; p-iPrC6H4Me, 2; C6Me6,... Plus

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    Summary
    A general approach for the preparation of dinuclear η5- and η6-cyclic hydrocarbon platinum group metal complexes, viz. [(η6-arene)2Ru2 (NNNN)Cl2]2+ (arene = C6H6, 1; p-iPrC6H4Me, 2; C6Me6, 3), [(η5-C5Me5)2M2(NN∩NN)Cl2]2+ (M = Rh, 4; Ir, 5), [(η5-C5H5)2M2(NNNN)(PPh3)2]2+ (M = Ru, 6; Os, 7), [(η5-C5Me5)2Ru2(NNNN)(PPh3)2]2+ (8) and [(η5-C9H7)2Ru2(NNNN)(PPh3)2]2+ (9), bearing the bis-bidentate ligand 1,2-bis(di-2-pyridylaminomethyl)benzene (NNNN), which contains two chelating di-pyridylamine units connected by an aromatic spacer, is reported. The cationic dinuclear complexes have been isolated as their hexafluorophosphate or hexafluoroantimonate salts and characterized by use of a combination of NMR, IR and UV–vis spectroscopic methods and by mass spectrometry. The solid state structure of three derivatives, [2][SbF6]2, [3][PF6]2 and [4][PF6]2, has been determined by X-ray structure analysis.