η1-silolyl-FeCp(CO)2 complexes. Is there a way to sila-ferrocene?

Csaba Fekete, Réka Mokrai, P. Bombicz, L. Nyulászi, Ilona Kovács

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

The reaction of 1-chlorosilols (12, 13) and K[Fe(CO)2Cp] in THF yielded two new η1-silolyl-FeCp(CO)2 complexes (15, 16) in good yield. These complexes are the first covalent Fe-Si bonded silolyl complexes reported in the literature, which were structurally proven by single crystal X-ray diffraction and multinuclear NMR spectroscopy. By temperature dependent NMR spectroscopy a rotational barrier of 14.4 kcal/mol was revealed, in agreement with the calculated 14.9 kcal/mol barrier of the phenyl rotation. The attempted transformation of these complexes to the corresponding silaferrocene by CO elimination failed. DFT calculations revealed that the rather high stability of the Si-Fe comparing to the C-Fe bond might be responsible for the stability of the complexes.

Original languageEnglish
Pages (from-to)291-298
Number of pages8
JournalJournal of Organometallic Chemistry
Volume799-800
DOIs
Publication statusPublished - Dec 15 2015

Fingerprint

Carbon Monoxide
Nuclear magnetic resonance spectroscopy
nuclear magnetic resonance
Magnetic Resonance Spectroscopy
Discrete Fourier transforms
spectroscopy
Biomolecular Nuclear Magnetic Resonance
elimination
Single crystals
X-Ray Diffraction
X ray diffraction
single crystals
diffraction
Temperature
x rays
temperature
ferrocene

Keywords

  • Bissilol
  • DFT calculations
  • Iron complex
  • Silacyclopentadiene
  • X-ray structure

ASJC Scopus subject areas

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

Cite this

η1-silolyl-FeCp(CO)2 complexes. Is there a way to sila-ferrocene? / Fekete, Csaba; Mokrai, Réka; Bombicz, P.; Nyulászi, L.; Kovács, Ilona.

In: Journal of Organometallic Chemistry, Vol. 799-800, 15.12.2015, p. 291-298.

Research output: Contribution to journalArticle

Fekete, Csaba ; Mokrai, Réka ; Bombicz, P. ; Nyulászi, L. ; Kovács, Ilona. / η1-silolyl-FeCp(CO)2 complexes. Is there a way to sila-ferrocene?. In: Journal of Organometallic Chemistry. 2015 ; Vol. 799-800. pp. 291-298.
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