Molecular beam millimeter sidebands Fourier transform spectrometer (MB-MMSBFT)

1994 ◽  
Vol 15 (9) ◽  
pp. 1481-1496 ◽  
Author(s):  
D. Boucher ◽  
R. Bocquet ◽  
D. Petitprez ◽  
L. Aime
Keyword(s):  
Fourier Transform ◽  
Molecular Beam ◽  
Fourier Transform Spectrometer

The Microwave Spectrum and Dipole Moment of Hexafluoropropanone

1991 ◽  
Vol 46 (3) ◽  
pp. 229-232 ◽  
Author(s):  
J.-U. Grabow ◽  
N. Heineking ◽  
W. Stahl
Keyword(s):  
Fourier Transform ◽  
Dipole Moment ◽  
Molecular Beam ◽  
Stark Effect ◽  
Microwave Spectrum ◽  
Fourier Transform Spectrometer ◽  
Centrifugal Distortion ◽  
Rotational Constants ◽  
Centrifugal Distortion Constants

AbstractWe recorded the microwave spectrum of hexafluoropropanone between 7 and 15 GHz using a pulsed molecular beam microwave Fourier transform spectrometer. The rotational constants were determined to be A = 2181.71980(14) MHz, B= 1037.22930(7) MHz, C = 934.89233(8) MHz, the quartic centrifugal distortion constants are D'J= 0.07378 (39) kHz, D'JK = 0.10002(75) kHz, D'K = -0.07269(266) kHz, δ'J = 0.00623(29) kHz and R' 6= 0.00755(12) kHz. Stark effect measurements yielded a dipole moment μ = μb= 0.3949 (18) D

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

Notizen: A Pulsed Molecular Beam Microwave Fourier Transform Spectrometer with Parallel Molecular Beam and Resonator Axes

1990 ◽  
Vol 45 (8) ◽  
pp. 1043-1044 ◽  
Author(s):  
J.-U Grabow ◽  
W. Stahl
Keyword(s):  
Fourier Transform ◽  
High Resolution ◽  
Molecular Beam ◽  
Fourier Transform Spectrometer

AbstractWe report on first experiences with a pulsed molecular beam microwave Fourier transform spectrometer with parallel molecular beam and resonator axes. This setup shows up a high resolution and sensitivity.

The Microwave Spectrum of 4-Methylisothiazole

1991 ◽  
Vol 46 (7) ◽  
pp. 635-638 ◽  
Author(s):  
H.-W. Nicolaisen ◽  
J.-U. Grabow ◽  
N. Heineking ◽  
W. Stahl
Keyword(s):  
Fourier Transform ◽  
Internal Rotation ◽  
Molecular Beam ◽  
Microwave Spectrum ◽  
Coupling Constants ◽  
Fourier Transform Spectrometer ◽  
Methyl Group ◽  
Quadrupole Coupling ◽  
Internal Rotor ◽  
Rotor Axis

The microwave spectrum of 4-methylisothiazole was assigned by means of a pulsed molecular beam microwave Fourier transform spectrometer. Analysis of the spectrum yielded the rotational constants .4 = 7370.642(31) MHz, B = 2515.8461 (30) MHz, C = 1897.2863(33) MHz, a threefold barrier to internal rotation of the methyl group of V3 = 3170.81 (130) GHz≙ 105.7669(430) cm-1, a momentum of inertia of the methyl group of Iα = 3.16769(130) amu · Å2 and an angle between internal rotor axis and principal a-axis of Θ= 5.406(38)°. The nitrogen quadrupole coupling constants were determined to be χ+ = χbb + χcc = 1.4822(14) MHz, χ -= χbb-χcc = - 1.4353(25) MHz and χab= - 3.16(12) MHz.

An automatic molecular beam microwave Fourier transform spectrometer

1990 ◽  
Vol 61 (12) ◽  
pp. 3694-3699 ◽  
Author(s):  
U. Andresen ◽  
H. Dreizler ◽  
J.‐U. Grabow ◽  
W. Stahl
Keyword(s):  
Fourier Transform ◽  
Molecular Beam ◽  
Fourier Transform Spectrometer

The Rotational Spectrum of the Fluorobenzene-Argon Van der Waals Complex

1992 ◽  
Vol 47 (5) ◽  
pp. 681-684 ◽  
Author(s):  
W. Stahl ◽  
J.-U. Grabow
Keyword(s):  
Fourier Transform ◽  
Molecular Beam ◽  
Van Der Waals ◽  
Argon Atom ◽  
Fourier Transform Spectrometer ◽  
Rotational Spectrum ◽  
Centrifugal Distortion ◽  
Ring Plane ◽  
Van Der Waals Complex ◽  
Centrifugal Distortion Constants

AbstractThe rotational spectrum of the fluorobenzene-argon complex has been studied in the microwave region between 7 and 18 GHz using a pulsed molecular beam microwave Fourier transform spectrometer. The rotational constants were found to be A = 1811.81369(11) MHz, B= 1105.12965(15) MHz, C = 901.84281(5) MHz, the centrifugal distortion constants are ΔJ = 2.6886(17) kHz, ΔJK = 8.3761 (52) kHz ΔJK= -8.278(5) kHz, ρJ, =0.65993(72) kHz, and ρK = 6.013(11) kHz. The argon atom is placed 3.55 Å above the ring plane

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