Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.21/1296
Título: Synthesis, characterization and redox behaviour of benzoyldiazenido- and oxorhenium complexes bearing N,N- and S,S-type ligands
Autor: Kirillov, Alexander M.
Guedes da
Silva, M. Fátima C.Guedes da
Martins, Luísa Margarida D. R. S.
Sousa, Catarina
Pombeiro, Armando J. L.
Palavras-chave: Rhenium
Benzoyldiazenido complexes
Pyrimidine
2,2'-Bipyridine
Dithiocarbamate
Electrochemistry
Mild peroxidative oxidation
Rhenium complexes
Coordination-compounds
Molecular-structure
Crystal-structures
Catalytic-activity
Chemistry
Cyclohexane
Acid
Cycloalkalines
Data: 5-Abr-2010
Editora: Elsevier Science SA
Citação: Kirilov A M, Alegria E C B A, Silva M F C G, Martins L M D R S, Sousa C, Pombeiro A J L.Synthesis, characterization and redox behaviour of benzoyldiazenido- and oxorhenium complexes bearing N,N- and S,S-type ligands. Inorganica Chimica Acta. 2010; 363 (6): 1269-1274.
Relatório da Série N.º: 6
Resumo: The reactions of [ReCl2{eta(2)-N2C(O)Ph}(PPh3)(2)](1) with 2-aminopyrimidine (H(2)Npyrm), 2,2'-bipyridine (bpy) and tetraethylthiuram disulfide (tds), in MeOH upon reflux, lead to the new eta(1)-(benzoyldiazenido)-rhenium(III) complexes [ReCl{eta(1)-N2C(O)Ph}(HNpyrm)(PPh3)(2)](2)and [ReCl2{eta(1)-N2C(O)Ph}(bpy)(PPh3)] (3), and the known oxo(diethyldithiocarbamato)dirhenium(v)complex [Re2O2(mu O){Et2NC(S)S}(4)](4), respectively. The Et2NC(S)S ligands in 4 result from S-S bond rupture of tds molecules. The obtained compounds have been characterized by IR, H-1, P-31{H-1} and C-13{H-1} NMR spectroscopies, FAB(+)-MS, elemental and single-crystal X-ray diffraction (for 2 and 4)analyses. Complex 2 represents the first structurally characterized Re compound derived from 2-aminopyrimidine. Besides, the redox behaviour of 2-4 in CH2Cl2 solution has been studied by cyclic voltammetry, and the Lever electrochemical ligand parameter (E-L)has been estimated, for the first time, for HNpyrm. The electrochemical results are discussed in terms of electronic properties of the Re centres and the ligands.
Peer review: yes
URI: http://hdl.handle.net/10400.21/1296
ISSN: 0020-1693
Aparece nas colecções:ISEL - Eng. Quim. Biol. - Artigos



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