Synthesis and catalytic application of monometallic molybdenum(IV) nitrile complexes

Research output: Contribution to journal › Research article › Contributed › peer-review

Contributors

  • Bernd E. Diebl - , Technical University of Munich (Author)
  • Hui Yee Yeong - , Leibniz Institute of Polymer Research Dresden (Author)
  • Mirza Cokoja - , Technical University of Munich (Author)
  • Eberhardt Herdtweck - , Technical University of Munich (Author)
  • Brigitte Voit - , Leibniz Institute of Polymer Research Dresden (Author)
  • Fritz E. Kuehn - , Technical University of Munich (Author)

Abstract

The novel molybdenum(IV) compound [MoO(NCMe)(5)][B(C6E5)(4)](2) (1a) has been prepared by air oxidation of [Mo(CO)(3)(NCMe)(3)] in the presence of [H(OEt2)(2)][B(C6F5)(4)] at room temperature. The [MoO(NCMe)(5)](2+) cation shows a distorted octahedral configuration with two different acetonitrile-metal bond lengths due to a trans effect of the oxo-ligand. The trans-acetonitrile ligand is easily abstracted under oil pump vacuum to form [MoO(NCMe)(4)][B(C6F5)(4)](2) (1b). The complex [MoO(NCPh)(4)][B(C6F5)(4)](2) (2) is formed by substitution of acetonitrile ligands of la with benzonitrile molecules. The Mo(IV) complexes can be applied in the homopolymerization of isobutene at 30 degrees C leading to high yields and moderate molecular weights. (C) 2011 Published by Elsevier Ltd.

Details

Original languageEnglish
Pages (from-to)955-959
Number of pages5
JournalTetrahedron letters
Volume52
Issue number9
Publication statusPublished - 2 Mar 2011
Peer-reviewedYes
Externally publishedYes

External IDs

Scopus 79251594950
ORCID /0000-0002-4531-691X/work/148607833

Keywords

Keywords

  • Molybdenum catalyst, Nitrite ligated complexes, Polyisobutene, Polymerization, Weakly coordinating anions

Library keywords