Valerga, P. ; Puerta, M. C. ; Pandey, D. S. (2002) Synthetic, spectral, electrochemical and structural aspects of some Ru(II) arene complexes with some novel bridging ligands Journal of Organometallic Chemistry, 648 (1-2). pp. 27-32. ISSN 0022-328X
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Official URL: http://www.sciencedirect.com/science/article/pii/S...
Related URL: http://dx.doi.org/10.1016/S0022-328X(01)01446-2
Abstract
Reactions of chloro-bridged dimeric Ru(II) complexes [{Ru(η6-arene)Cl2}2] with bridging ligands 1,4-dicyanamidobenzene, N,N′-dicyano 4-4′-diaminobiphenyl, 2,5-dichloro-1,4-dicyanamidobenzene and 2,5-dimethyl-1,4-dicyanamidobenzene (referred hereafter as dcdH2, bpH2, ddcl and dmcd) in dicloromethane at room temperature gave binuclear complexes with the general formulation [{Ru(η6-arene)Cl2}2(μ-L)]. However, reactions of these bridging ligands with the complexes [Ru(η6-arene)(P)Cl2](η6-arene=benzene or p-cymene; P=PPh3, PEt3 or MePPri2) in methanol, in presence of NH4PF6, gave cationic arene complexes [{Ru(η6-arene)(P)Cl}2(L)]2+ (L=dcdH2, bpH2, dmcd or ddcl). The reaction products have been characterized by physico-chemical methods viz., elemental analyses, IR, 1H-, 13C-, 31P-NMR, electronic and FAB mass spectra. The complexes under study are highly stable at room temperature. However, their solutions in coordinating solvents like acetonitrile or dimthylsulfoxide undergo substitution reactions to give substitutional products with the formulation RuCl2(sol)4. It has been confirmed by single crystal X-ray diffraction studies.
Item Type: | Article |
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Source: | Copyright of this article belongs to Elsevier Science. |
Keywords: | Ruthenium Arene Complexes; 1,4-dicyanamidobenzene; N,N′-dicyano 4-4′-diaminobiphenyl; 2,5-dichloro-1,4-dicyanamidobenzene; 2,5-dimethyl-1,4-dicyanamidobenzene |
ID Code: | 105676 |
Deposited On: | 20 Apr 2017 06:39 |
Last Modified: | 20 Apr 2017 06:39 |
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