Jump to main content
Jump to site search

Issue 38, 2017
Previous Article Next Article

Synthesis, characterization and catalytic epoxidation properties of lanthanide-stabilized peroxoisopolytungstates

Author affiliations

Abstract

A series of new lanthanide-containing peroxoisopolyoxotungstates, K6Na4[H32{Ln4(WO4)(H2O)16[W7O22(O2)2]4}3]·105H2O [Ln = CeIII (1), NdIII (2), SmIII (3), TbIII (4), ErIII (5)], have been successfully synthesized and structurally characterized. All polyanions [LnIII4(WO4)(H2O)16{W7O22(O2)2}4]14− are isostructural and consist of a central [LnIII4(WO4)(H2O)16]10+ cluster surrounded by four peripheral [W7O22(O2)2]6− units. They could act as efficient recyclable catalysts for the epoxidation of various alkenes including different cycloalkenes, styrene derivatives, internal and long-chain alkenes. Under optimal conditions, catalyst 2 displays the best catalytic activity for the oxidation of cyclooctene with high cyclooctene conversion (98.3%) and excellent selectivity (up to 99%) and could be reused for three cycles with a negligible decrease in reactivity.

Graphical abstract: Synthesis, characterization and catalytic epoxidation properties of lanthanide-stabilized peroxoisopolytungstates

Back to tab navigation

Supplementary files

Publication details

The article was received on 07 Jul 2017, accepted on 31 Aug 2017 and first published on 31 Aug 2017


Article type: Paper
DOI: 10.1039/C7DT02471A
Citation: Dalton Trans., 2017,46, 12981-12987
  •   Request permissions

    Synthesis, characterization and catalytic epoxidation properties of lanthanide-stabilized peroxoisopolytungstates

    J. Guo, Y. Niu, L. Song, Q. Xu, J. Lu, P. Ma, D. Zhang, C. Zhang, J. Niu and J. Wang, Dalton Trans., 2017, 46, 12981
    DOI: 10.1039/C7DT02471A

Search articles by author

Spotlight

Advertisements