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research
Rapid probe of the nicotine spectra by high-resolution rotational spectroscopy
Authors
J.L. Alonso
S. Blanco
+5 more
C. Cabezas
Jens-Uwe Grabow
J.C. López
S. Mata
I. Peña
Publication date
1 January 2011
Publisher
Cambridge : Royal Society of Chemistry
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Cite
Abstract
Nicotine has been investigated in the gas phase and two conformational forms were characterized through their rotational spectra. Two spectroscopic techniques have been used to obtain the spectra: a new design of broadband Fourier transform microwave (FTMW) spectroscopy with an in-phase/quadrature- phase-modulation passage-acquired-coherence technique (IMPACT) and narrowband FTMW spectroscopy with coaxially oriented beam-resonator arrangement (COBRA). The rotational, centrifugal distortion and hyperfine quadrupole coupling constants of two conformers of nicotine have been determined and found to be in N-methyl trans configurations with the pyridine and pyrrolidine rings perpendicular to one another. The quadrupole hyperfine structure originated by two 14N nuclei has been completely resolved for both conformers and used for their unambiguous identification. © 2011 the Owner Societies
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Institutionelles Repositorium der Leibniz Universität Hannover
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Last time updated on 21/11/2017