The conformational behaviour of the odorant dihydrocarveol
Loru, Donatella
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https://hdl.handle.net/2142/91407
Description
Title
The conformational behaviour of the odorant dihydrocarveol
Author(s)
Loru, Donatella
Contributor(s)
Sanz, M. Eugenia
Jarman, Natasha
Issue Date
2016-06-22
Keyword(s)
Chirped pulse
Abstract
The odorant dihydrocarveol (C$_{10}$H$_{18}$O) has been investigated in the gas phase using a 2-8 GHz chirped-pulse Fourier transform microwave spectrometer. Dihydrocarveol was purchased as a mixture of n-, iso-, neo-, and neoiso- isomers. The sample was placed in a bespoke heating nozzle at about 85$^{\circ}$C and seeded in Ne at 5 bar. Three conformers were observed and their rotational constants were determined. By comparing the experimental rotational constants with those calculated ab initio the three conformers were identified as belonging to n-dihydrocarveol. In all three conformers the isopropenyl group is in equatorial position with respect to the six-membered ring, and the OH group maintains the same configuration. The conformers differ in the orientation of the isopropenyl group.
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