Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.21/5119
Título: Reactivity of bulky tris(Phenylpyrazolyl) methanesulfonate copper(I) complexes towards small unsaturated molecules
Autor: Rocha, Bruno G. M.
Wanke, Riccardo
Silva, Maria de Fátima Costa Guedes da
Luzyanin, Konstantin V.
Martins, Luísa Margarida D. R. S.
Smolenski, Piotr
Pombeiro, Armando J. L.
Palavras-chave: Tris(pyrazolyl)methanesulfonate Ligand
Copper Complexes
Isocyanide
Carbon Monoxide
3-Iminoisoindolin-1-One
Catalytic Peroxidative Oxidation
Coordination Chemistry
Rhenium Complexes
Mild Conditions
1,3,5-Triazapentadienato Complexes
Structural-Characterization
Spectroscopic Properties
Cyclohexane Oxidation
Crystal-Structures
Redox Properties
Data: Set-2012
Editora: Elsevier
Citação: ROCHA, B. G. M.; [et al] – Reactivity of bulky tris(Phenylpyrazolyl) methanesulfonate copper(I) complexes towards small unsaturated molecules. Journal of Organometallic Chemistry. ISSN: 0022-328X. Vol. 714 (2012)
Resumo: Reaction of the tris(3-phenylpyrazolyl)methane sulfonate species (Tpms(Ph))Li with the copper(I) complex [Cu(MeCN)(4)][PF6] affords [Cu(Tpms(Ph))(MeCN)] 1. The latter, upon reaction with equimolar amounts of cyclohexyl-(CyNC) or 2,6-dimethylphenyl (XylNC) isocyanides, or excess CO, furnishes the corresponding Cu(I)complexes [Cu(Tpms(Ph))(CNR)] (R = Cy 2, Xyl 3) or [Cu(Tpms(Ph))(CO)] 4. The ligated isocyanide in 2 or 3 (or the acetonitrile ligand in 1)is displaced by 3-iminoisoindolin-1-one to afford 5, the first copper(I) complex containing an 3-iminoisoindolin-1-one ligand. The ligated acetonitrile in 1 undergoes nucleophilic attack by methylamine to give the amidine complex [Cu(Tpms(Ph)){MeC(NH)NHMe}] 6, whereas only the starting materials were recovered from the attempted corresponding reactions of 2 and 3 with methylamine. Complexes 1 or 6 form the trinuclear hydroxo-copper(II)species [(mu-Cu){Cu(mu-OH) (2)(Tpms(Ph))}(2)] 7 upon air oxidation in moist methanol. In all the complexes the scorpionate ligand facially caps the metal in the N,N,O-coordination mode.
Peer review: yes
URI: http://hdl.handle.net/10400.21/5119
DOI: 10.1016/j.jorganchem.2012.03.022
ISSN: 0022-328X
Aparece nas colecções:ISEL - Eng. Quim. Biol. - Artigos



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