Conformational study of tetramethyl-N,N′-bis-arylcyclodisilazanes by 13C NMR and X-ray diffraction methods II. The conformation of tetramethyl-N,N′-bis(o-chlorophenyl)cyclodisilazane

László Parkányi, Áron Szöllsy, László Bihátsi, Pál Hencsei, József Nagy

Research output: Article

9 Citations (Scopus)


NMR data indicate that tetramethyl-N,N′-bis-o-chlorophenylcyclodisilazane possesses aryl groups which are coplanar with the cyclodisilazane ring. An X-ray crystal structure determination has corroborated this conformation in the solid state. The Si-N bond distance (1.756(2) Å) is the longest reported for N,N′-diarylcyclodisilazanes. Interactions between the halogen atom and d-orbitals of silicon and enhanced delocalization may contribute to the stability of the coplanar conformation. Repulsive non-bonded interactions in the coplanar conformation are presumably less prominent than in the o-tolyl derivative.

Original languageEnglish
Pages (from-to)235-243
Number of pages9
JournalJournal of Organometallic Chemistry
Issue number2
Publication statusPublished - nov. 8 1983

ASJC Scopus subject areas

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

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