Molecular Beam Investigation of Rotational Transitions. II. The Rotational Levels of KBr and Their Hyperfine Structure

1953 ◽  
Vol 91 (6) ◽  
pp. 1403-1408 ◽  
Author(s):  
B. P. Fabricand ◽  
R. O. Carlson ◽  
C. A. Lee ◽  
I. I. Rabi
Keyword(s):  
Hyperfine Structure ◽  
Molecular Beam ◽  
Rotational Transitions

Molecular Beam Investigation of Rotational Transitions. I. The Rotational Levels of KCl and Their Hyperfine Structure

1953 ◽  
Vol 91 (6) ◽  
pp. 1395-1403 ◽  
Author(s):  
Charles A. Lee ◽  
B. P. Fabricand ◽  
R. O. Carlson ◽  
I. I. Rabi
Keyword(s):  
Hyperfine Structure ◽  
Molecular Beam ◽  
Rotational Transitions

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

Das Rotationsspektrum des JF/ Rotational Spectrum of IF

1973 ◽  
Vol 28 (9) ◽  
pp. 1405-1407 ◽  
Author(s):  
E. Tiemann ◽  
J. Hoeft ◽  
T. Törring
Keyword(s):  
Hyperfine Structure ◽  
Microwave Discharge ◽  
Rotational Spectrum ◽  
Vibrational States ◽  
Rotational Transitions

IF was produced by microwave discharge of l2 and C6F10(CFa)2. The rotational transitions J=0→1 and 1→2 in the vibrational states ν = 0, 1, 2 were observed. The analysis of the hyperfine structure yields the following hfs constants:127I: e qv Q = (-3440.89+5.47 (ν+½) ±0.20) MHz,cI = ( + 90 ±10) kHz.

Hyperfine Structure of 7Li79,81Br by Molecular‐Beam Electric Resonance

1972 ◽  
Vol 56 (2) ◽  
pp. 855-861 ◽  
Author(s):  
R. C. Hilborn ◽  
T. F. Gallagher ◽  
N. F. Ramsey
Keyword(s):  
Hyperfine Structure ◽  
Molecular Beam ◽  
Electric Resonance

scholarly journals Notizen:Hyperfeinstruktur von CsCl

1972 ◽  
Vol 27 (10) ◽  
pp. 1516-1517
Author(s):  
J. Hoeft ◽  
E. Tiemann ◽  
T. Törring
Keyword(s):  
Hyperfine Structure ◽  
Line Width ◽  
Quadrupole Coupling Constant ◽  
Rotational Transition ◽  
Coupling Constants ◽  
Coupling Constant ◽  
Vibrational States ◽  
Upper Limit ◽  
Quadrupole Coupling ◽  
Rotational Transitions

Abstract The quadrupole hyperfine structure of 133Cs35Cl was measured on the rotational transition J=1 → 2 at 8.6 GHz. The calculated quadrupole coupling constants of 35Cl in various vibrational states are reported. The observed line width of the rotational transitions yields an upper limit of the quadrupole coupling constant of 133Cs.

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