Concerning the silicon-germanium bond. The structures of isomeric Ph3EE′Me3, E = Ge, E′ = Si and E = Si, E′ = Ge

Keith H. Pannell, Ramesh N. Kapoor, Raphael Raptis, L. Párkányí, Vilmos Fülöp

Research output: Contribution to journalArticle

27 Citations (Scopus)

Abstract

The synthesis and structure of the unknown trimethylgermyltriphenylsilane (I, Ph3SiGeMe3) is reported. The molecular geometry is compared to that of the isomeric Me3SiGePh3 (II) and the related Ph3SiSiMe3 (III) and (η5-C5H5)Fe(CO)2SiMe2GePh3 (IV). The SiGe bond of I is significantly longer than that for II. We suggest that this is due to expansion of Ge bonding orbitals by the relatively electron-donating methyl groups in conjunction with the contraction of the corresponding orbitals of Si due to the electron-withdrawing phenyl groups. The overall result is a better orbital overlap between the Si and Ge atoms for II.

Original languageEnglish
Pages (from-to)41-47
Number of pages7
JournalJournal of Organometallic Chemistry
Volume384
Issue number1-2
DOIs
Publication statusPublished - Feb 27 1990

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Germanium
Silicon
germanium
Electrons
orbitals
silicon
Carbon Monoxide
Atoms
contraction
Geometry
electrons
expansion
synthesis
geometry
atoms
iron pentacarbonyl

ASJC Scopus subject areas

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

Cite this

Concerning the silicon-germanium bond. The structures of isomeric Ph3EE′Me3, E = Ge, E′ = Si and E = Si, E′ = Ge. / Pannell, Keith H.; Kapoor, Ramesh N.; Raptis, Raphael; Párkányí, L.; Fülöp, Vilmos.

In: Journal of Organometallic Chemistry, Vol. 384, No. 1-2, 27.02.1990, p. 41-47.

Research output: Contribution to journalArticle

Pannell, Keith H. ; Kapoor, Ramesh N. ; Raptis, Raphael ; Párkányí, L. ; Fülöp, Vilmos. / Concerning the silicon-germanium bond. The structures of isomeric Ph3EE′Me3, E = Ge, E′ = Si and E = Si, E′ = Ge. In: Journal of Organometallic Chemistry. 1990 ; Vol. 384, No. 1-2. pp. 41-47.
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AU - Párkányí, L.

AU - Fülöp, Vilmos

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