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(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

Synthesis, structural and magnetic characterization of a copper(II) complex of 2,6-di(1H-imidazol-2-yl) pyridine and its application in copper-mediated polymerization catalysis

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Autor(es):
Ratier de Arruda, Eduardo Guimaraes ; de Farias, Marcelo Alexandre ; Venturinelli Jannuzzi, Sergio Augusto ; Gonsales, Stella de Almeida ; Timm, Ronaldo Adriano ; Sharma, Surender ; Zoppellaro, Giorgio ; Kubota, Lauro Tatsuo ; Knobel, Marcelo ; Barboza Formiga, Andre Luiz
Número total de Autores: 10
Tipo de documento: Artigo Científico
Fonte: Inorganica Chimica Acta; v. 466, p. 456-463, SEP 2017.
Citações Web of Science: 6
Resumo

The 2,6-di(1H-imidazol-2-yl) pyridine (H(2)dimpy) ligand is synthesized and suggested as an alternative ligand for copper mediated catalysis. A Cu(II) complex was obtained with this ligand and characterized via ESI-MS, FT-IR, UV-vis and the structure was confirmed by single crystal XRD. The crystal showed the {[}Cu-2(H(2)dimpy)(2)(mu-Cl)(2)] (PF6)(2)] center dot 2H(2)O dimeric complex, in which Cu(II) is in a distorted square-pyramidal geometry (tau = 0.301). Ferromagnetic coupling with J = -11.1 cm(-1) was confirmed by experiment and corroborated by density functional calculations. In order to evaluate the applicability of H(2)dimpy in atom transfer radical polymerization (ATRP), polystyrene was produced in DMF solution at low polydispersity (1.3) while maintaining the livingness of the polymer chain. The good performance of the H(2)dimpy compared to a standard ligand for ATRP (5,5'-dimethyl-2,2'-dipyridyl) indicates that it is suitable for this reaction. (C) 2017 Elsevier B.V. All rights reserved. (AU)

Processo FAPESP: 13/22127-2 - Desenvolvimento de novos materiais estratégicos para dispositivos analíticos integrados
Beneficiário:Lauro Tatsuo Kubota
Linha de fomento: Auxílio à Pesquisa - Temático
Processo FAPESP: 12/12773-1 - Desenvolvimento de sensores baseados em grafeno e seus derivados, decorados com nanopartículas de ouro e porfirinas
Beneficiário:Ronaldo Adriano Timm
Linha de fomento: Bolsas no Brasil - Pós-Doutorado