Synthesis and Crystal Structure of an Amino-Bridged Bis(silylene)iron Complex

Keiji Ueno, Shoko Ito, Ken ichi Endo, Hiromi Tobita, Shinji Inomata, Hiroshi Ogino

Research output: Contribution to journalArticle

37 Citations (Scopus)

Abstract

Photolysis of a C6D6 solution of the (aminodisilanyl)iron complex Cp′Fe(CO)2SiMe2SiMe2-NEt2 (Cp′ = η-C5Me5) resulted in the formation of the amino-bridged bis(silylene)iron complex 1. The 29Si NMR spectrum of 1 shows a signal at very low field (94.0 ppm). X-ray crystal structure analysis of 1 (monoclinic, space group P21/a, a = 28.031(8) Å, b = 19.541(6) Å, c = 8.089(3) Å, β = 93.62(2)°, V = 4422(3) Å3, Z = 8) revealed very short Fe-Si bonds (2.22–2.23 Å), fairly long Si—N bonds (1.93–1.96 Å), and almost planar geometry at each silicon atom with respect to it and the attached C and Fe atoms, excluding the bridging nitrogen. These structural and spectroscopic data for 1 strongly indicate that the Fe-Si bonds take on partial double-bond character (bis(silylene) structure), while the Si-N bonds can be described as a hybrid of a covalent and weak dative bond.

Original languageEnglish
Pages (from-to)3309-3314
Number of pages6
JournalOrganometallics
Volume13
Issue number8
DOIs
Publication statusPublished - 1994 Aug 1

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Organic Chemistry
  • Inorganic Chemistry

Fingerprint Dive into the research topics of 'Synthesis and Crystal Structure of an Amino-Bridged Bis(silylene)iron Complex'. Together they form a unique fingerprint.

  • Cite this

    Ueno, K., Ito, S., Endo, K. I., Tobita, H., Inomata, S., & Ogino, H. (1994). Synthesis and Crystal Structure of an Amino-Bridged Bis(silylene)iron Complex. Organometallics, 13(8), 3309-3314. https://doi.org/10.1021/om00020a049