Next Article in Journal
Intramolecular C-H···O Hydrogen Bonding in 1,4-Dihydropyridine Derivatives
Next Article in Special Issue
Dissociation of the Disilatricyclic Diallylic Dianion [(C4Ph4SiMe)2]−2 to the Silole Anion [MeSiC4Ph4] by Halide Ion Coordination or Halide Ion Nucleophilic Substitution at the Silicon Atom
Previous Article in Journal
The Potential of Tetrandrine as a Protective Agent for Ischemic Stroke
Article Menu

Article Versions

Export Article

Open AccessCommunication
Molecules 2011, 16(9), 8033-8040; doi:10.3390/molecules16098033

Synthesis and NMR-Study of the 2,3,4,5-Tetraethylsilole Dianion [SiC4Et4]2−•2[Li]+

Department of Nanopolymer Material Engineering, Pai Chai University, 155-40 Baejae-ro (Doma-Dong), Seo-Gu, Daejon 302-735, Korea
Received: 31 August 2011 / Revised: 8 September 2011 / Accepted: 14 September 2011 / Published: 16 September 2011
(This article belongs to the Special Issue Organosilicon Chemistry)
Download PDF [419 KB, uploaded 18 June 2014]


The previously unknown silole dianion [SiC4Et4]2−•2[Li]+ (3) was prepared by the sonication of 1,1-dichloro-2,3,4,5-tetraethyl-1-silacyclopentadiene [Cl2SiC4Et4, 2] with more than four equivalent of lithium in THF. 1H-, 13C-, and 29Si-NMR data of 3 are compared with those of the reported silole dianion [SiC4Ph4]2−. Trapping of 3 with trimethylchlorosilane gave 1,1-bis(trimethylsilyl)-2,3,4,5-tetraethyl-1-silacyclopentadiene [(Me3Si)2SiC4Et4, 4] in high yield. The silole of 2 was synthesized in high yield in three steps by a modified procedure using Cp2ZrCl2 via Cp2ZrC4Et4 and 1,4-dibromo-1,2,3,4-tetraethyl-1,3-butadiene.
Keywords: silole; germole; dianion; group 14 metallole; aromaticity silole; germole; dianion; group 14 metallole; aromaticity
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Hong, J.-H. Synthesis and NMR-Study of the 2,3,4,5-Tetraethylsilole Dianion [SiC4Et4]2−•2[Li]+. Molecules 2011, 16, 8033-8040.

Show more citation formats Show less citations formats

Related Articles

Article Metrics

Article Access Statistics



[Return to top]
Molecules EISSN 1420-3049 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top