Study of cloverite molecular sieves modified by grafting organometallic complexes inside the pores: I. Synthesis and characterization of cloverite modified by grafting -SnR3 fragments (R=Me, Et, n-Bu, Cy)

M. Adachi, J. Corker, H. Kessler, F. Lefebvre*, Jean-Marie Maurice Basset

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

15 Scopus citations

Abstract

The reaction of various alkyltin compounds [HSnBu3 and SnR4, R=Me, Et, cyclohexyl (Cy)] with cloverite dehydroxylated at 450°C was studied by various methods such as 1H, 31P and 119Sn MAS NMR, 13C CP-MAS NMR, infrared spectroscopy, analysis of evolved gases, thermolysis and chemical analysis. All techniques showed that there was a formation of grafted -SnR3 fragments. However, depending on the size of the organometallic fragment, the grafting reaction did not occur in the same manner: while -SnR3 (R=Me, Et, n-Bu) fragments were grafted homogeneously over the entire crystal volume, -SnCy3 fragments were grafted only on the external surface, as previously observed on mordenite. In addition, depending on the size of the R alkyl group, different grafted complex loadings were achieved: for R=Me, up to four -SnMe3 could be grafted per window aperture, while for R=Et and n-Bu, only one complex could be grafted per window aperture.

Original languageEnglish (US)
Pages (from-to)81-90
Number of pages10
JournalMicroporous and Mesoporous Materials
Volume21
Issue number1-3
DOIs
StatePublished - Jan 1 1998

Keywords

  • Alkyltin
  • Cloverite
  • Grafting reaction
  • Solid-state NMR

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials

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