First synthesis of a dihydrido functionalized double-cored oligosilane dendrimer

Clemens Krempner, S. Chtchian, H. Reinke

Research output: Contribution to journalArticle

13 Scopus citations

Abstract

The reaction of (R2MeSi)2SiHCl (2) [R=SiMe 3] with Na-K-alloy yields the double-cored dendritic oligosilane [(R2MeSi)2SiH]2 (4). The structure of 4 was obtained from X-ray diffraction data, which verify a total of 14 silicon atoms and a longest chain of six silicon atoms. The UV-Vis spectra of 4 and the structurally analogous [(R2MeSi)2SiMe]2 (5) exhibit absorption maxima (shoulders) at 269 nm (ε=2.0×10 4) and 276 nm (ε=2.3×104), respectively, which are the longest so far observed for alkyl substituted oligosilanes with hexasilane chains.

Original languageEnglish
Pages (from-to)3733-3738
Number of pages6
JournalInorganica Chimica Acta
Volume357
Issue number12
DOIs
StatePublished - Sep 10 2004

Keywords

  • Dendrimers
  • Hexasilane
  • Oligosilanes
  • Silanes
  • σ-Conjugation

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