The effect of terminal substitution on the helical carbon structure of fluoro-alkane chains: a pure rotational study of (N = 4, 5,& 6)
Schwartz, Aaron Z.A.
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https://hdl.handle.net/2142/91071
Description
Title
The effect of terminal substitution on the helical carbon structure of fluoro-alkane chains: a pure rotational study of (N = 4, 5,& 6)
Author(s)
Schwartz, Aaron Z.A.
Contributor(s)
Cooke, S. A.
Obenchain, Daniel A.
Maturo, Mark P.
Issue Date
2016-06-22
Keyword(s)
Small molecules
Abstract
Continuing a series of studies to investigate the change in structure of hydrocarbons as the amount of fluorination is increased to varying degrees of substitution, we present a survey on the change in the helical nature of the fluorinated carbon backbone when a $^{-}$CH$_{2}$OH group is substituted for a terminal $^{-}$ CF$_{3}$ group. Spectra for 1H,1H-heptafluorobutan-1-ol, 1H,1H-nonafluoropentan-1-ol, and 1H,1H-undecafluorohexan-1-ol were collected separately using a chirped-pulse FTMW spectrometer in the range of 7-13 GHz. Only one conformation was observed for each molecule. Additional measurements of the 1H,1H-heptafluorobutan-1-ol were completed using a Balle-Flygare cavity instrument. Assignments of the singly-substituted $^{13}$C isotopologues of the 1H,1H-heptafluorobutan-1-ol were also measured. A comparison of both \textit{ab initio} and experimental structures will be presented.
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