Publication Type Journal Article
Title New heterogeneous catalysts with Mo(II) intercalated in layered double hydroxides
Authors Maria Diaz-Couce Joao Marreiros M J Ferreira P. D. Vaz C. D. Nunes Maria Jose Calhorda
Groups BioMol
Journal INORGANICA CHIMICA ACTA
Year 2017
Month January
Volume 455
Number 2
Pages 483-488
Abstract The Mo(II) complexes [MoX2(CO)3(BDC)] (X = I, Br; H2BDC = 2,2 -bipyridine-5,5 -dicarboxylic acid) were immobilized by intercalation in two layered double hydroxides (LDH), containing Zn/Al (synthesized) and Mg/Al (commercial), as shown by infrared and C-13 solid state NMR spectroscopies, and X-ray powder diffraction. Their catalytic activity was studied in olefin oxidation, using as oxidant tert-butylhydroperoxide (tbhp), and was compared with the activity of the related [MoX2(CO)(3)(bpy)] complexes (bpy = 2,2 -bipyridine). cis-Cyclooctene, styrene, 1-octene, trans-hex-3-en-1-ol, and R-(+)-limonene were the substrates tested. All the catalyst showed in average a high selectivity toward the epoxide of each substrate (above 90\%, except for styrene), with variable conversions, but none of the heterogeneous catalysts proved to be more active than the homogeneous ones. The same or higher activity in a second catalytic run, as observed in most reactions, suggests a good recycling capability. (C) 2016 Elsevier B.V. All rights reserved.
DOI http://dx.doi.org/10.1016/j.ica.2016.07.030
ISBN
Publisher ELSEVIER SCIENCE SA
Book Title
ISSN 0020-1693
EISSN 1873-3255
Conference Name
Bibtex ID ISI:000390722500016
Observations
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