Structure and UV spectroscopic properties of a novel dendritic oligosilane

Helmut Reinke, Clemens Krempner

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16 Scopus citations

Abstract

The reaction of (R2MeSi)2MeSi-Li (2) [R=SiMe3] with [ClMe2Si]2 yields the double-cored dendritic oligosilane [(RMe2Si)2 MeSi-SiMe2]2 (4). The structure of 4 was obtained from X-ray diffraction data, which verify a total of 16 silicon atoms in the molecule and a longest chain of 8 silicon atoms. 4 exhibits an absorption maximum in the near UV at 285 nm (E =5.6×104), a wavelength that is significantly longer than that of the linear octasilane Si8Me18 and is the longest observed for structurally well-defined oligosilane dendrimers so far.

Original languageEnglish
Pages (from-to)134-137
Number of pages4
JournalJournal of Organometallic Chemistry
Volume685
Issue number1-2
DOIs
StatePublished - Nov 15 2003

Keywords

  • Dendrimers
  • Octasilane
  • Oligosilanes
  • Silanes
  • UV spectroscopy

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