resumo
The octamolybdate salt (H(3)biim)(4)[beta-Mo8O26] (1) has been prepared in good yield by hydrolysis of the complex [MoO2Cl2(H(2)biim)] (H(2)biim = 2,2'-biimidazole). Compound 1 showed a good performance as a (pre)catalyst for the epoxidation of olefins using either tert-butylhydroperoxide (TBHP) or hydrogen peroxide as oxidant. With the ionic liquid (IL) 1-butyl-3-methylimidazolium bis(trifluoromethanesulfonyl)imide) as co-solvent and TBHP as oxidant, the catalyst system could be reused several times without loss of activity for the epoxidation of the bio-olefin methyl oleate (Ole). Compound 1 is the first polyoxomolybdate used for the Ole/TBHP reaction in IL medium.
palavras-chave
GAS-SENSING PROPERTIES; MOLYBDENUM TRIOXIDE; HYDROTHERMAL SYNTHESIS; CRYSTAL-STRUCTURE; STRUCTURAL ELUCIDATION; HYDROGEN-PEROXIDE; HYBRID MATERIALS; METHYL OLEATE; IONIC LIQUIDS; IN-SITU
categoria
Chemistry
autores
Neves, P; Amarante, TR; Valente, AA; Pillinger, M; Goncalves, IS
nossos autores
Anabela Tavares Aguiar Valente
Investigador Principal
Isabel Maria de Sousa Gonçalves
Professor associado
Martyn Pillinger
Investigador Principal
Patrícia dos Santos Neves
Investigador Auxiliar
Tatiana Ribau Amarante
Investigador Júnioragradecimentos
We acknowledge funding by FEDER (Fundo Europeu de Desenvolvimento Regional) through COMPETE (Programa Operacional Factores de Competitividade), and national funding through the FCT (Fundacao para a Ciencia e a Tecnologia). This work was developed within the scope of the project CICECO - Aveiro Institute of Materials, POCI-01-0145-FEDER-007679 (FCT ref. UID/CTM/50011/2013), financed by national funds through the FCT/MEC and co-financed by FEDER under the PT2020 Partnership Agreement. The FCT and the European Union are acknowledged for postdoctoral grants to P.N. (SFRH/BPD/73540/2010) and T.R.A. (SFRH/BPD/97660/2013) cofunded by MCTES and the European Social Fund through the program POPH of QREN.