Preparation of Mononuclear, Homodinuclear, and Heterotrinuclear Complexes by Salicylaldiminato-Functionalized Imidazolium Salt: Approach to Multifunctional Catalysts
A salicylaldiminato imidazolium salt that bears both a Schiff base and imidazolium salt moiety was used to synthesize heterometallic compounds that could serve as multifunctional catalysts in certain reactions. The successful preparation of seven mononuclear compounds with a variety of transition metals (Pd, Ir, Ru, Zn, Ni) illustrated the high versatility of this class of ligands, which is crucial
Half-sandwich ruthenium(II) complexes with water-soluble Schiff base ligands: Synthesis and catalytic activity in transfer hydrogenation of carbonyl compounds
New ionic Schiff-base ligands have been synthesized by condensation of (3-formyl-4-hydroxybenzyl)triphenylphosphonium and 3-(3-formyl-4-hydroxybenzyl)-1-methyl-1H-imidazol-3-ium chloride and hexafluorophosphate salts with N,N-dimethylethylenediamine. Treatment of the dimeric derivative [RuCl(μ-Cl)(η6-p-cymene)}2] with two equivalents of these ligands allowed the preparation of novel mononuclear water-soluble
Salicylaldoxime and salen containing imidazolium ionic liquids for biphasic catalysis and metal extractions
作者:Prashant U. Naik、Gregory J. McManus、Michael J. Zaworotko、Robert D. Singer
DOI:10.1039/b811232k
日期:——
Imidazolium salts containing salicylaldoxime or salen ligands readily form ionic metal complexes with copper and manganese; hence offering applications in metal extractions and biphasic catalysis.
[EN] IONIC LIQUIDS COMPRISING LIGANDS CONTAINING POSITIVELY CHARGED HETEROCYCLIC RING USEFUL AS CATALYST AND FOR METAL EXTRACTIONS<br/>[FR] LIQUIDES IONIQUES COMPRENANT DES LIGANDS QUI CONTIENNENT DES CYCLES HÉTÉROCYCLIQUES CHARGÉS POSITIVEMENT UTILES EN TANT QUE CATALYSEURS ET POUR LES EXTRACTIONS DE MÉTAUX
申请人:SAINT MARY S UNIVERSITY
公开号:WO2009105881A1
公开(公告)日:2009-09-03
The present invention is directed to ligands of formulae I and II: in which, X1, X2, R1, R2, R6, R7, R8, L1, L2 , L3, T1, T2, Z1, Z2 are chosen from various possible groups or entities, metal complexes formed from said ligands and their use as an ionic liquid for complexmg cation metal They can therefore be used for decontaminating liquids, purifying air or gas, or as a catalyst