A laser-ablation molecular-beam Fourier-transform microwave spectrometer: The rotational spectrum of organic solids

2003 ◽  
Vol 74 (11) ◽  
pp. 4799-4804 ◽  
Author(s):  
Alberto Lesarri ◽  
Santiago Mata ◽  
Juan C. López ◽  
José L. Alonso
Keyword(s):  
Fourier Transform ◽  
Laser Ablation ◽  
Molecular Beam ◽  
Rotational Spectrum ◽  
Organic Solids ◽  
Microwave Spectrometer

33S Nuclear Hyperfine Structure in the Rotational Spectrum of Thiazole

1993 ◽  
Vol 48 (12) ◽  
pp. 1219-1222 ◽  
Author(s):  
U. Kretschmer ◽  
H. Dreizler
Keyword(s):  
Fourier Transform ◽  
Hyperfine Structure ◽  
Molecular Beam ◽  
Microwave Spectroscopy ◽  
Coupling Constants ◽  
Rotational Spectrum ◽  
Centrifugal Distortion ◽  
Quadrupole Coupling ◽  
Nuclear Quadrupole ◽  
Centrifugal Distortion Constants

Abstract We investigated the 33S nuclear quadrupole coupling of thiazole- 33S in natural abundance by molecular beam Fourier transform microwave spectroscopy. In addition the 14N nuclear quadrupole coupling could be analyzed with high precision. We derived the rotational constants A = 8529.29268 (70) MHz, B = 5427.47098 MHz, and C = 3315.21676 (26) MHz, quartic centrifugal distortion constants and the quadrupole coupling constants of 33S χaa = 7.1708 (61) MHz and χbb= -26.1749 (69) MHz and of 14N χ aa = -2.7411 (61) MHz and χbb = 0.0767 (69) MHz.

The Microwave Spectrum of 2,6-Lutidine, Analysis of Internal Rotation and 14 N Hyperfine Structure

1993 ◽  
Vol 48 (11) ◽  
pp. 1093-1101 ◽  
Author(s):  
C. Thomsen ◽  
H. Dreizler
Keyword(s):  
Fourier Transform ◽  
Hyperfine Structure ◽  
Internal Rotation ◽  
Molecular Beam ◽  
Microwave Spectrum ◽  
Methyl Groups ◽  
Rotational Spectrum ◽  
Rotational Constants ◽  
Moments Of Inertia ◽  
Nuclear Quadrupole

Abstract The rotational spectrum of 2,6-lutidine, (CH3)2C5H3N, has been recorded between 6 and 26.5 GHz using pulsed molecular beam microwave Fourier transform spectroscopy. The rotational constants are A = 3509.7139(84) MHz, B = 1906.8639(101) MHz, and C = 1254.6215(14) MHz, the barrier to internal rotation of the two methyl groups is V3 = 1.1752 kJ/mol, their moments of inertia were found to be Iα = 3.0808(9) uÅ2 . The nitrogen nuclear quadrupole constants are χaa = +1.600(5) MHz, χbb = -4.572(3) MHz and χcc = +2.972(5) MHz.

scholarly journals Nuclear Quadrupole Coupling in the Rotational Spectrum of Thionyl Chloride

1992 ◽  
Vol 47 (11) ◽  
pp. 1150-1152 ◽  
Author(s):  
Ilona Merke ◽  
Helmut Dreizler
Keyword(s):  
Fourier Transform ◽  
Hyperfine Structure ◽  
Thionyl Chloride ◽  
Molecular Beam ◽  
Fourier Transform Spectrometer ◽  
Rotational Spectrum ◽  
Quadrupole Coupling ◽  
Nuclear Quadrupole

Abstract We report on the analysis of the chlorine quadrupole hyperfine structure of thionyl chloride, S035Cl37 Cl, observed with a molecular beam microwave Fourier transform spectrometer

Observation of Carbonyl Fluoride, Ketene, Acetic Acid and Fluorocarbene Produced by an Electric Discharge within a Nozzle by Molecular Beam Fourier Transform Microwave Spectroscopy. A Reaction via a Cycloaddition for Carbonyl Fluoride and Keten?

2000 ◽  
Vol 55 (8) ◽  
pp. 695-705 ◽  
Author(s):  
D. H. Sutter ◽  
H. Dreizler
Keyword(s):  
Carbon Dioxide ◽  
Acetic Acid ◽  
Fourier Transform ◽  
Molecular Beam ◽  
Reaction Path ◽  
Microwave Spectroscopy ◽  
Electrical Discharges ◽  
Microwave Spectrometer ◽  
Precursor Molecules ◽  
Carbonyl Fluoride

Abstract A molecular beam Fourier transform microwave spectrometer, designed for the study of chemical reactions within electrical discharges, is described in detail. Applications include the production of carbonyl fluoride, ketene, acetic acid, and difluorocarbene. For the production of carbonyl fluoride and ketene with 1,1-difluoroethylene and carbon dioxide as precursor molecules a reaction path via a 2+2 cycloaddition is proposed.

A portable, pulsed-molecular-beam, Fourier-transform microwave spectrometer designed for chemical analysis

1999 ◽  
Vol 70 (4) ◽  
pp. 2127-2135 ◽  
Author(s):  
R. D. Suenram ◽  
Jens Uwe Grabow ◽  
Andrei Zuban ◽  
Igor Leonov
Keyword(s):  
Fourier Transform ◽  
Chemical Analysis ◽  
Molecular Beam ◽  
Microwave Spectrometer

A search accelerated correct intensity Fourier transform microwave spectrometer with pulsed laser ablation source

2007 ◽  
Vol 78 (9) ◽  
pp. 096106 ◽  
Author(s):  
Garry S. Grubbs ◽  
Christopher T. Dewberry ◽  
Kerry C. Etchison ◽  
Katherine E. Kerr ◽  
Stephen A. Cooke
Keyword(s):  
Fourier Transform ◽  
Laser Ablation ◽  
Pulsed Laser ◽  
Pulsed Laser Ablation ◽  
Microwave Spectrometer

Notiz: The Microwave Spectrum of the Benzonitrile-Water Complex

1997 ◽  
Vol 52 (3) ◽  
pp. 293-294
Author(s):  
V. Storm ◽  
D. Consalvo ◽  
H. Dreizler
Keyword(s):  
Ground State ◽  
Molecular Beam ◽  
Low Frequency ◽  
Microwave Spectrum ◽  
Rotational Spectrum ◽  
Trans Form ◽  
Water Complex ◽  
Microwave Spectrometer ◽  
Fourier Trans

Abstract We report on the measurement and assignment of the benzonitrile-water complex rotational spectrum in the vi-bronic ground state. This study was facilitated by a newly constructed low frequency molecular beam Fourier trans-form microwave spectrometer.

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