Broadband Microwave Spectrum And Structure Of Cyclopropyl Cyanosilane

Seifert, Nathan A

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https://hdl.handle.net/2142/50837 Copy

Description

Title

Broadband Microwave Spectrum And Structure Of Cyclopropyl Cyanosilane

Author(s)

Seifert, Nathan A

Contributor(s)

• Groner, Peter
• Durig, James R.
• Overby, Jason S
• Guirgis, Gamil A
• Pate, Brooks
• Lobsiger, Simon

Issue Date

2014-06-20

Keyword(s)

Chirped pulse

Abstract

The strucure of cyclopropane cyanosilane has been studied using chirped-pulse Fourier transform microwave (CP-FTMW) spectroscopy in the 6.5-18 GHz band. Two conformers of similar intensity were detected, one with a gauche orientation of the cyanosilane group with respect to the plane of the ring, and the other with a staggered conformation. The sensitivity of the CP-FTMW experiment was sufficient enough to assign spectra for all common singly-substituted heavy atom isotopologues ($^{13}$C, $^{29/30}$Si, $^{15}$N) for each conformer, resulting in a full heavy atom Kraitchman structure of the molecule in good agreement with the predicted structure. Additionally, the hyperfine effects have been analyzed for the $^{14}N$-containing parent species. Results will also be presented on the potential tunneling spectrum arising from the symmetric double well torsional potential of the gauche conformer. Some observed transitions, especially with frequencies near the upper end of the measured band, exhibit splittings that could potentially be associated with a tunneling splitting. However, the resolution is not sufficient to provide a complete quantitative analysis of this effect.

Publisher

International Symposium on Molecular Spectroscopy

Type of Resource

text

Language

English

Permalink

http://hdl.handle.net/2142/50837

DOI

https://doi.org/10.15278/isms.2014.FD03

Copyright and License Information

Copyright 2014 by the authors. Licensed under a Creative Commons Attribution 4.0 International License. http://creativecommons.org/licenses/by/4.0/

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