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Synthesis and crystal structures of bromo- and ester-functionalised polyhedral silsesquioxanes

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Author(s)

E A Drylie, C D Andrews, M A Hearshaw, C Jimenez-Rodriguez, A Slawin, D J Cole-Hamilton, R E Morris

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Abstract

Radical initiated hydrobromination and methoxycarbonylation using a Pd(0) complex have been used to convert octavinylsilsesquioxane to species functionalised with alkyl bromide and linear methyl propanoate groups on all eight reactive sites, respectively. The two new molecules, 1,3,5,7,9,11,13,15-octakis[ethylbromide]octasiloxane and 1,3,5,7,9,11,13,15-octakis[methylpropanoate]octasiloxane, have been characterised using NMR (H-1, C-13 and Si-29) and IR spectroscopy, elemental analysis and single crystal X-ray diffraction. (c) 2005 Elsevier Ltd. All rights reserved.

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Details

Original languageEnglish
Pages (from-to)853-858
Number of pages6
JournalPolyhedron
Volume25
DOIs
Publication statusPublished - 6 Mar 2006

    Research areas

  • silsesquioxanes, methoxycarbonylation, hydrobromination, X-ray diffraction, OLIGOMERIC SILSESQUIOXANES, METHYL PROPANOATE, DENDRIMERS, POLYMERS, PRECURSORS, COMPLEXES, CATALYSTS, ETHENE, BLOCKS, CORES

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