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

L. Párkányí, Áron Szöllsy, László Bihátsi, Pál Hencsei, József Nagy

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

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
Volume256
Issue number2
DOIs
Publication statusPublished - Nov 8 1983

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Halogens
Silicon
X-Ray Diffraction
Conformations
Nuclear magnetic resonance
X-Rays
X ray diffraction
nuclear magnetic resonance
diffraction
halogens
x rays
interactions
solid state
orbitals
crystal structure
rings
silicon
Crystal structure
Derivatives
atoms

ASJC Scopus subject areas

  • Biochemistry
  • Chemical Engineering (miscellaneous)
  • Inorganic Chemistry
  • Organic Chemistry
  • Physical and Theoretical Chemistry
  • Materials Science (miscellaneous)
  • Materials Chemistry

Cite this

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. / Párkányí, L.; Szöllsy, Áron; Bihátsi, László; Hencsei, Pál; Nagy, József.

In: Journal of Organometallic Chemistry, Vol. 256, No. 2, 08.11.1983, p. 235-243.

Research output: Contribution to journalArticle

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abstract = "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) {\AA}) 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.",
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T1 - 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

AU - Párkányí, L.

AU - Szöllsy, Áron

AU - Bihátsi, László

AU - Hencsei, Pál

AU - Nagy, József

PY - 1983/11/8

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N2 - 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.

AB - 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.

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