期刊
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
卷 -, 期 17, 页码 2850-2860出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/ejic.201600084
关键词
Synthesis design; Ruthenium; P ligands; Ligand effects; Water solubility
资金
- Italian Ministero dell'Universita e della Ricerca (MIUR) [PRIN 20085ZXFEE, FIRB RBAP11C58Y]
- University of Trieste
- Fondazione Beneficentia Stiftung
The monodentate phosphane ligand 1,3,5-triaza-7-phosphaadamantane (PTA) imparts excellent water solubility to its complexes. We aimed to prepare precursors with one or more PTA coligands for solubility and one or more labile ligands for facile replacement by a linker. For this purpose, we investigated the reactivity of the neutral isomers trans-and cis-RuCl2(PTA)(4) (1 and 2) towards 2,2'-bipyridine (bpy), as a model chelating diimine linker. The new derivatives mer[Ru(bpy)Cl(PTA)(3)]Cl (9) and fac-[Ru(bpy)Cl(PTA)(3)]Cl (10) were prepared and characterized. We also found that PTA reacts rapidly with cis, fac-RuCl2(dmso-O)(dmso-S)(3) (11) and trans-RuCl2(dmso-S)(4) (13) under mild conditions through the replacement of pairs of mutually trans dmso ligands with high selectivity, even when in stoichiometric defect. Thus, 11 affords cis, cis, trans-RuCl2(dmso-S)(2)(PTA)(2) (12), whereas 13 gives 1. The two dmso ligands of 12 can be replaced selectively by chelating diimines such as bpy to afford the less symmetrical all-cis product cis,cis-Ru(bpy)Cl-2(PTA)(2) (16).
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