abstract
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.
keywords
GAS-SENSING PROPERTIES; MOLYBDENUM TRIOXIDE; HYDROTHERMAL SYNTHESIS; CRYSTAL-STRUCTURE; STRUCTURAL ELUCIDATION; HYDROGEN-PEROXIDE; HYBRID MATERIALS; METHYL OLEATE; IONIC LIQUIDS; IN-SITU
subject category
Chemistry
authors
Neves, P; Amarante, TR; Valente, AA; Pillinger, M; Goncalves, IS
our authors
Anabela Tavares Aguiar Valente
Principal Researcher
Isabel Maria de Sousa Gonçalves
Associate Professor
Martyn Pillinger
Principal Researcher
Patrícia dos Santos Neves
Assistant Researcher
Tatiana Ribau Amarante
Junior Researcheracknowledgements
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.