scholarly journals Precise dipole moments and quadrupole coupling constants of the cis and trans conformers of 3-aminophenol: determination of the absolute conformation

2008 ◽  
Vol 10 (5) ◽  
pp. 666-673 ◽  
Author(s):  
Frank Filsinger ◽  
Kirstin Wohlfart ◽  
Melanie Schnell ◽  
Jens-Uwe Grabow ◽  
Jochen Küpper
Keyword(s):  
Dipole Moments ◽  
Coupling Constants ◽  
Quadrupole Coupling ◽  
The Absolute ◽  
Cis And Trans

The Rotational Spectra and Dipole Moments of AgF and CuF by Microwave Absorption

1970 ◽  
Vol 25 (1) ◽  
pp. 35-39 ◽  
Author(s):  
J. Hoeft ◽  
F.J. Lovas ◽  
E. Tiemann ◽  
T. Törring
Keyword(s):  
Microwave Absorption ◽  
Vibrational State ◽  
Stark Effect ◽  
Dipole Moments ◽  
Spin Rotation ◽  
Coupling Constants ◽  
Coupling Constant ◽  
Rotational Spectra ◽  
Quadrupole Coupling

Abstract The rotational transitions J=1→2 and 2→3 were measured for 107Ag 19F and 109Ag 19F by microwave absorption. These spectra allowed the determination of the Dunham-coefficients Y01, Y11, Y21, and Y02 and from these the potential coefficients a0 and a1 and internuclear distance re were derived. For 63Cu 19F and 65Cu 19F the hyperfine structure was observed in the J=0→1 and 1→2 rotational spectra. In addition to the Dunham coefficients the quadrupole coupling constants, e q Q, and spin-rotation coupling constant, c, for the Cu nucleus were obtained. Stark effect mea-surements on both AgF and CuF resulted in the determination of the electric dipole moment for the ground vibrational state.

NMR Determination of Some Deuterium Quadrupole Coupling Constants in Nematic Solutions

1972 ◽  
Vol 56 (7) ◽  
pp. 3249-3256 ◽  
Author(s):  
Francis Spencer Millett ◽  
Benjamin P. Dailey
Keyword(s):  
Coupling Constants ◽  
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

Aspects of hybridization

1950 ◽  
Vol 202 (1071) ◽  
pp. 548-564 ◽  
Keyword(s):  
Dipole Moments ◽  
Atomic Orbital ◽  
Second Order ◽  
Coupling Constants ◽  
Covalent Bonds ◽  
Orbital Hybridization ◽  
Quadrupole Coupling ◽  
Orbital Approximation ◽  
Nuclear Quadrupole ◽  
Oxygen Atoms

It has been shown that the pairing theory of orbital hybridization accounts satisfactorily for the variations which are observed in the properties of C-H bonds. Since heteropolar effects are in the opposite directions to the effects described, it is concluded that hybridization influences the properties of predominantly covalent bonds to a greater extent than do differences in electronegativity. The extent of second-order hybridization in the molecules CH, NH and OH has been dealt with in the light of this analysis. The consequences of the electronegativity concept have been examined on the basis of a generalized atomic orbital approximation. In particular, variations of the electronegativity of the carbon, nitrogen and oxygen atoms in different states of hybridization have been analyzed. The idea of 'lone' electrons has been formalized and the results of this definition have been discussed. Finally, the effects of orbital hybridization on the dipole moments and nuclear quadrupole coupling constants of molecules have been considered.

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