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Projeto de investigação
Synthesis and Study of New Organometallic Dendrimers for Nonlinear Applications
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Publicações
Ruthenium metallodendrimers based on Nitrile-functionalized Poly(alkylidene imine)s
Publication . Ornelas, Cátia; Vertlib, Viatcheslav; Rodrigues, João; Rissanen, Kari
The preparation of the first- and second-generation of nitrilefunctionalized 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.
Syntheses and characterization of novel ruthenium complexes based on 1,3-dicyanobenzene
Publication . Csók, Z.; Gandum, C.; Rissanen, K.; Tuzi, A.; Rodrigues, J.
Synthesis, characterization and crystal structure of the bimetallic cyano-bridged [(η5-C5H5)(PPh3) 2Ru (μ-CN) Ru (PPh3) 2 (η5-C5H5)][PF6]
Publication . Ornelas, Cátia; Gandum, Cláudia; Mesquita, José; Rodrigues, João; Garcia, M. Helena; Lopes, Nelson; Robalo, M. Paula; Nattinen, Kalle; Rissanen, Kari
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Entidade financiadora
Fundação para a Ciência e a Tecnologia
Programa de financiamento
POCI
Número da atribuição
POCTI/QUI/41814/2001