Microwave Spectrum of Methylhydrazine; Rotational Isomerism, Internal Motions, Dipole Moments, and Quadrupole Coupling Constants

1970 ◽  
Vol 53 (12) ◽  
pp. 4575-4583 ◽  
Author(s):  
Robert P. Lattimer ◽  
Marlin D. Harmony
Keyword(s):  
Dipole Moments ◽  
Microwave Spectrum ◽  
Rotational Isomerism ◽  
Coupling Constants ◽  
Internal Motions ◽  
Quadrupole Coupling

Microwave Spectrum, Quadrupole Coupling Constants, and Dipole Moments of 1-Chloro-2-fluorobenzene

1996 ◽  
Vol 176 (1) ◽  
pp. 17-22 ◽  
Author(s):  
Masao Onda ◽  
Tsuaki Odaka ◽  
Hideya Miyazaki ◽  
Masayoshi Mori ◽  
Ichiro Yamaguchi ◽  
...  
Keyword(s):  
Dipole Moments ◽  
Microwave Spectrum ◽  
Coupling Constants ◽  
Quadrupole Coupling

The Microwave Spectrum of Oxazole

1978 ◽  
Vol 33 (5) ◽  
pp. 549-558 ◽  
Author(s):  
Anil Kumar ◽  
John Sheridan ◽  
Otto L. Stiefvater
Keyword(s):  
Dipole Moment ◽  
Carbon Atom ◽  
Electron Distribution ◽  
Dipole Moments ◽  
Microwave Spectrum ◽  
Coupling Constants ◽  
Molecular Plane ◽  
Coupling Tensor ◽  
Quadrupole Coupling

The dipole moments and the quadrupole coupling constants of the normal and the three mono-deuterated species of oxazole have been measured. The dipole moment of 1.50 ± 0.03 D is found to deviate by 10.8° from the external bisector of the CNC angle towards the C(2) carbon atom. The principal values of the quadrupole coupling tensor are determined as Xzz = -4.04 ± 0.02 MHz and Xxx - 1-66 ± 0.02 MHz along the axes in the molecular plane, so that the gradient perpendicular to this plane is Xyy = 2.38 MHz. The direction of the largest gradient deviates by 5.7° from the external bisector of the CNC angle towards the carbon atom C(4).An attempt is made to correlate these results and the geometry of oxazole with the electron distribution in this molecule

Microwave spectrum, dipole moment and quadrupole coupling constants of 1,2,5-selenadiazole

1967 ◽  
Vol 1 (9) ◽  
pp. 379-381 ◽  
Author(s):  
G.L. Blackman ◽  
R.D. Brown ◽  
F.R. Burden ◽  
J.E. Kent
Keyword(s):  
Dipole Moment ◽  
Microwave Spectrum ◽  
Coupling Constants ◽  
Quadrupole Coupling

Microwave Spectrum and Nuclear Quadrupole Coupling of 2-Chloropyridine

1987 ◽  
Vol 42 (2) ◽  
pp. 197-206 ◽  
Author(s):  
M. Meyer ◽  
U. Andresen ◽  
H. Dreizler
Keyword(s):  
Excited State ◽  
Ground State ◽  
Microwave Spectrum ◽  
Coupling Constants ◽  
Vibrationally Excited ◽  
Isotopic Species ◽  
Quadrupole Coupling ◽  
Nuclear Quadrupole ◽  
Mo Theory

The microwave spectrum of 2-chloropyridine, 2-Cl(C5H4N), has been studied to determine the 35Cl, 37Cl and 14N nuclear quadrupole coupling constants. The results are discussed within a simple MO theory. We propose an approximate r0-structure under certain assumptions. In addition to the ground state we observed one vibrationally excited state of both chlorine isotopic species of 2-chloropyridine.

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