The synthesis, crystal structures and NMR spectroscopic investigation of 3,7,10-trimethylsilatranes and carbasilatranes

Ilona Kovács, Eberhard Matern, Ewald Sattler, Christopher E. Anson, L. Párkányí

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

The first representatives of aryloxy-trimethylsilatranes, C6H5OSi[OCH(CH3)CH2] 3N, of aryloxy-carbasilatranes, C6H5OSi(CH2CH2CH2 )(OCH2CH2)2N, and a number of novel 3,7,10-trimethylsilatranes (RSi[OCH(CH3)CH2]3N) and carbasilatranes (RSi(CH2CH2CH2)(OCH2 CH2)2N) have been prepared and characterised, both structurally and by NMR spectroscopy. The influence of various Si substituents (R = alkyl, aryl, alkoxy and aryloxy) as well as the influence of the substitution in the skeleton of the trimethylsilatranes and carbasilatranes on the chemical shift in the 29Si, 1H and 13C NMR spectra has been investigated. The crystal structures of both diastereomers of phenyl-3,7,10-trimethylsilatrane and of the symmetrical isomer of p-tolyl-3,7,10-trimethylsilatrane were determined by X-ray diffraction after separation of the diastereomers by means of HPLC. All three crystal structures are centrosymmetric.

Original languageEnglish
Pages (from-to)14-20
Number of pages7
JournalJournal of Organometallic Chemistry
Volume694
Issue number1
DOIs
Publication statusPublished - Jan 1 2009

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Skeleton
X-Ray Diffraction
Magnetic Resonance Spectroscopy
Crystal structure
High Pressure Liquid Chromatography
Nuclear magnetic resonance
nuclear magnetic resonance
crystal structure
Chemical shift
synthesis
musculoskeletal system
Isomers
Nuclear magnetic resonance spectroscopy
chemical equilibrium
Substitution reactions
isomers
substitutes
X ray diffraction
diffraction
spectroscopy

Keywords

  • Carbasilatranes
  • NMR spectroscopy
  • Trimethylsilatranes
  • X-ray scattering

ASJC Scopus subject areas

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

Cite this

The synthesis, crystal structures and NMR spectroscopic investigation of 3,7,10-trimethylsilatranes and carbasilatranes. / Kovács, Ilona; Matern, Eberhard; Sattler, Ewald; Anson, Christopher E.; Párkányí, L.

In: Journal of Organometallic Chemistry, Vol. 694, No. 1, 01.01.2009, p. 14-20.

Research output: Contribution to journalArticle

Kovács, Ilona ; Matern, Eberhard ; Sattler, Ewald ; Anson, Christopher E. ; Párkányí, L. / The synthesis, crystal structures and NMR spectroscopic investigation of 3,7,10-trimethylsilatranes and carbasilatranes. In: Journal of Organometallic Chemistry. 2009 ; Vol. 694, No. 1. pp. 14-20.
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