Chiral diamine catalyzed induction of helical chirality in polysilanes

Zhifang Li, Weifeng Chen, Hua Lu, Qiuhong Wang, Guoqiao Lai

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Controlling the conformation polysilane through proton-metal exchange reaction of polymethyltolylsilane with alkyllithium using catalytic amount of chiral amines as the chiral origin has been realized. The produced polymers whose chiral origins are (-)-sparteine, (S, S)-3 or (S)-2 adopt the P conformation, and whose chiral origins are (R, R)-3 or (R)-2 adopt the M conformation. Under the external stimuli of (S, S)-3 and (R, R)-3, or (S)-2 and (R)-2, the prepared polymers, PS-11 and PS-12 or PS-3 and PS-2 assumed to induced CD spectra were virtual mirror images of each other. These results indicate that the chiral amines can not only induce the helicity of polysilanes, but control the direction of the helix.

Original languageEnglish
Pages (from-to)143-146
Number of pages4
JournalJournal of Organometallic Chemistry
Volume772
DOIs
Publication statusPublished - 2014 Dec 1

Keywords

  • Chiral amines
  • Helical chirality
  • Polysilane

ASJC Scopus subject areas

  • Biochemistry
  • Physical and Theoretical Chemistry
  • Organic Chemistry
  • Inorganic Chemistry
  • Materials Chemistry

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