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RESEARCH PRODUCT
Ruthenium Metallodendrimers Based on Nitrile‐Functionalized Poly(alkylidene imine)s
Catia OrnelasViatcheslav VertlibKari RissanenJoão Rodriguessubject
DendrimersNitrileIminechemistry.chemical_elementEthylenediamineSandwich complexes.Mass spectrometryRutheniumRutheniumInorganic ChemistryFaculdade de Ciências Exatas e da Engenhariachemistry.chemical_compoundPiperazineN ligandschemistryDendrimerPolymer chemistryOrganic chemistry31p nmr spectroscopydescription
The preparation of the first- and second-generation of nitrile-functionalized poly(alkylidene imine) dendrimers with the organometallic ruthenium complex [Ru(η5-C5H5)(PPh3)2Cl] peripherally attached is described. The reaction of N,N′-bis(cyanomethyl)piperazine (1), N,N′-bis[N′′,N′′′-bis(cyanoethyl)aminoethyl]piperazine (2), or N,N,N′,N′-tetrakis(cyanoethyl)ethylenediamine (3) with [Ru(η5-C5H5)(PPh3)2Cl] (4) in the presence of TlPF6 gives the new air-stable ruthenium metallodendrimers 5, 6, and 7, respectively. These stable metallodendrimers are easily prepared and represent a novel quantitative method to solidify and chromatographically purify the otherwise semi-liquid nitrile-functionalized poly(alkylidene imine) dendrimers. The compounds were fully characterized by IR and 1H, 13C, and 31P NMR spectroscopy, and mass spectrometry. These dendrimers represent the first example of the utilization of nitrile-functionalized poly(alkylidene imine)s as cores in the preparation of metallodendrimers. (© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2006)
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2005-12-22 | European Journal of Inorganic Chemistry |