Presentation Title

Synthesis and characterization of hyper-coordinate silicon complexes

Presentation Type

Poster

Keywords

Silicon, hyper-coordinate, inorganic, chemistry, NMR, spectroscopy

Department

Chemistry

Major

Chemistry

Abstract

In this project, the bonding properties of silicon were expanded by treating this non-metal/metalloid as a traditional metal for inorganic chemistry. Like carbon, silicon traditionally prefers to form four bonds but can adopt hyper-coordinate configurations. This was achieved in this study through reaction of a ketoimine with sodium hexamethyl silazide followed by reaction with silicon tetrachloride yielding silicon with six bonds. The compound was characterized with 1H NMR and evidence for the structure show was collected. The compound’s electronic properties were investigated with absorbance and fluorescence spectroscopies and the silicon compound showed interesting fluorescence properties. With the development of a general synthetic methodology, another silicon complex with varying electronic properties was prepared and differences in their fluorescence properties were examined.

Faculty Mentor

Dr. Joseph Fritsch

Funding Source or Research Program

Summer Undergraduate Research Program

Location

Waves Cafeteria

Start Date

24-3-2017 2:00 PM

End Date

24-3-2017 3:00 PM

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Mar 24th, 2:00 PM Mar 24th, 3:00 PM

Synthesis and characterization of hyper-coordinate silicon complexes

Waves Cafeteria

In this project, the bonding properties of silicon were expanded by treating this non-metal/metalloid as a traditional metal for inorganic chemistry. Like carbon, silicon traditionally prefers to form four bonds but can adopt hyper-coordinate configurations. This was achieved in this study through reaction of a ketoimine with sodium hexamethyl silazide followed by reaction with silicon tetrachloride yielding silicon with six bonds. The compound was characterized with 1H NMR and evidence for the structure show was collected. The compound’s electronic properties were investigated with absorbance and fluorescence spectroscopies and the silicon compound showed interesting fluorescence properties. With the development of a general synthetic methodology, another silicon complex with varying electronic properties was prepared and differences in their fluorescence properties were examined.