OSU Navigation Bar

The Ohio State University University Libraries Knowledge Bank

STRUCTURAL STUDIES OF CH$_3$SiF$_2$-X (X = NCO, Cl) BY MICROWAVE SPECTROSCOPY

Please use this identifier to cite or link to this item: http://hdl.handle.net/1811/52605

Show full item record

Files Size Format View
abstract.gif 56.36Kb GIF image Thumbnail of STRUCTURAL STUDIES OF CH$_3$SiF$_2$-X (X = NCO, Cl) BY MICROWAVE SPECTROSCOPY
Silane OSU talk.pptx 3.082Mb Microsoft PowerPoint 2007 View/Open
Slide1.GIF 17.12Kb GIF image Thumbnail of STRUCTURAL STUDIES OF CH$_3$SiF$_2$-X (X = NCO, Cl) BY MICROWAVE SPECTROSCOPY
Slide2.GIF 22.89Kb GIF image Thumbnail of STRUCTURAL STUDIES OF CH$_3$SiF$_2$-X (X = NCO, Cl) BY MICROWAVE SPECTROSCOPY
Slide3.GIF 22.78Kb GIF image Thumbnail of STRUCTURAL STUDIES OF CH$_3$SiF$_2$-X (X = NCO, Cl) BY MICROWAVE SPECTROSCOPY
Slide4.GIF 100.8Kb GIF image Thumbnail of STRUCTURAL STUDIES OF CH$_3$SiF$_2$-X (X = NCO, Cl) BY MICROWAVE SPECTROSCOPY
Slide5.GIF 24.72Kb GIF image Thumbnail of STRUCTURAL STUDIES OF CH$_3$SiF$_2$-X (X = NCO, Cl) BY MICROWAVE SPECTROSCOPY
Slide6.GIF 23.45Kb GIF image Thumbnail of STRUCTURAL STUDIES OF CH$_3$SiF$_2$-X (X = NCO, Cl) BY MICROWAVE SPECTROSCOPY
Slide7.GIF 71.26Kb GIF image Thumbnail of STRUCTURAL STUDIES OF CH$_3$SiF$_2$-X (X = NCO, Cl) BY MICROWAVE SPECTROSCOPY
Slide8.GIF 80.32Kb GIF image Thumbnail of STRUCTURAL STUDIES OF CH$_3$SiF$_2$-X (X = NCO, Cl) BY MICROWAVE SPECTROSCOPY
Slide9.GIF 26.44Kb GIF image Thumbnail of STRUCTURAL STUDIES OF CH$_3$SiF$_2$-X (X = NCO, Cl) BY MICROWAVE SPECTROSCOPY
Slide10.GIF 28.76Kb GIF image Thumbnail of STRUCTURAL STUDIES OF CH$_3$SiF$_2$-X (X = NCO, Cl) BY MICROWAVE SPECTROSCOPY
Slide11.GIF 53.51Kb GIF image Thumbnail of STRUCTURAL STUDIES OF CH$_3$SiF$_2$-X (X = NCO, Cl) BY MICROWAVE SPECTROSCOPY
Slide12.GIF 23.16Kb GIF image Thumbnail of STRUCTURAL STUDIES OF CH$_3$SiF$_2$-X (X = NCO, Cl) BY MICROWAVE SPECTROSCOPY
Slide13.GIF 20.18Kb GIF image Thumbnail of STRUCTURAL STUDIES OF CH$_3$SiF$_2$-X (X = NCO, Cl) BY MICROWAVE SPECTROSCOPY
Slide14.GIF 122.2Kb GIF image Thumbnail of STRUCTURAL STUDIES OF CH$_3$SiF$_2$-X (X = NCO, Cl) BY MICROWAVE SPECTROSCOPY
Slide15.GIF 36.18Kb GIF image Thumbnail of STRUCTURAL STUDIES OF CH$_3$SiF$_2$-X (X = NCO, Cl) BY MICROWAVE SPECTROSCOPY
Slide16.GIF 22.01Kb GIF image Thumbnail of STRUCTURAL STUDIES OF CH$_3$SiF$_2$-X (X = NCO, Cl) BY MICROWAVE SPECTROSCOPY
Slide17.GIF 112.7Kb GIF image Thumbnail of STRUCTURAL STUDIES OF CH$_3$SiF$_2$-X (X = NCO, Cl) BY MICROWAVE SPECTROSCOPY

Title: STRUCTURAL STUDIES OF CH$_3$SiF$_2$-X (X = NCO, Cl) BY MICROWAVE SPECTROSCOPY
Creators: Guirgis, Gamil A.; Gause, Korreda K.; Seifert, Nathan A.; Zaleski, Daniel P.; Pate, Brooks H.; Palmer, Michael H.; Peebles, Rebecca A.; Peebles, Sean A.; Elmuti, Lena F.; Obenchain, Daniel A.
Issue Date: 2012
Abstract: The structures of CH$_3$SiF$_2$-NCO and CH$_3$SiF$_2$-Cl have been studied by molecular rotational spectroscopy in the 6.5-18 GHz band. The rotational spectrum was measured by cavity Fourier transform microwave (FTMW) and chirped-pulse FTMW spectroscopy. The experiment targeted the study of CH$_3$SiF$_2$-NCO, but CH$_3$SiF$_2$-Cl was also observed as an impurity. Due to the dynamic range achieved on these spectra, all isotopologs with natural abundance $\ge$0.2$\%$ were assigned, which includes two doubly-substituted isotopologs for the chloride ($^{29}$Si/$^{37}$Cl and $^{30}$Si/$^{37}$Cl). Strategies for obtaining the molecular structure for these two molecules using either a Kraitchman analysis (to obtain a partial substitution structure) or $r_0$ analysis (with additional constraints on the structure supplied by the theoretical structure) will be discussed. Derived structural parameters for the CH$_3$-SiF$_2$-X base structure are the same for the two compounds. The hyperfine and internal rotation effects in the spectra have been analyzed for all isotopologs and the Hamiltonian parameters are in very good agreement with ab initio results. The barriers to methyl group internal rotation for the two compounds 446(50) cm$^{-1}$ and 463(3) cm$^{-1}$ and are independent of the isotopic structure of the heavy atom frame.
URI: http://hdl.handle.net/1811/52605
Other Identifiers: 2012-MH-08
Bookmark and Share