Electric dipole moments and molar Kerr constants of Phenyl- and Diphenylpyridylmethanes

1973 ◽  
Vol 26 (10) ◽  
pp. 2077 ◽  
Author(s):  
KK Chiu ◽  
HH Huang

The difference in total polarization (ΔP) or dipole moment (ΔP) of 2- benzyl-pyridine, 4-benzylpyridine, diphenyl-2-pyridylmethane, diphenyl- 3-pyridylmethane, or diphenyl-4-pyridylmethane in carbon tetrachloride relative to benzene solution provides evidence of weak interaction between these amines and the former solvent. The molar Kerr constants of the amines in the two solvents for 4-benzylpyridine and diphenyl-4- pyridylmethane are analysed to yield the preferred angles of orientation of the phenyl and 4-pyridyl rings in these two molecules.

1981 ◽  
Vol 34 (2) ◽  
pp. 349 ◽  
Author(s):  
LHL Chia ◽  
KJ Kwan ◽  
HH Huang

Electric dipole moments and molar Kerr constants are reported for seven organic carbonates (dimethyl carbonate, diethyl carbonate, vinylene carbonate, diphenyl carbonate, di-p-tolyl carbonate, di-o- tolyl carbonate and t-butyl phenyl carbonate) examined as solutes in carbon tetrachloride at 25�. The experimental data are analysed to provide information on the probable solution-state conformations.


1977 ◽  
Vol 30 (7) ◽  
pp. 1411 ◽  
Author(s):  
RS Armstrong ◽  
MJ Aroney ◽  
KE Calderbank ◽  
RK Pierens

Electric dipole moments and molar Kerr constants are reported for ammonia, trimethylamine, trimethylamine oxide, 1,4- diazabicyclo[2,2,2]octane and its monohydrate in non-polar solvents. The dipole moment now found for 1,4-diazabicyclo[2,2,2]octane differs substantially from previously recorded values. Effective polarizability anisotropies are derived for each of the anhydrous molecules and for the N-H and N-C bonds. The effect of solute interactions with benzene is explored.


1977 ◽  
Vol 55 (9) ◽  
pp. 1440-1443 ◽  
Author(s):  
Ernst Bock ◽  
Garnette Sutherland ◽  
David McKinnon ◽  
Edward Tomchuk

The electric dipole moments of the bis-1,3-dioxolyl molecule were determined in dilute decahydronaphthalene solution at 25 and 100 °C and in dilute benzene solution at 25 °C. From the temperature dependence of the dipole moment it is concluded that the trans rotamer of the molecule is more stable in both solvents than the gauche rotamer by ∼4.5 kJ mol−1. The conformational behavior of the molecule is discussed in terms of a recently proposed solvation theory.


1980 ◽  
Vol 33 (11) ◽  
pp. 2343 ◽  
Author(s):  
RS Armstrong ◽  
MJ Aroney ◽  
BS Higgs ◽  
KR Skamp

Electric dipole moments and molar Kerr constants are reported for Ph3SiH, Ph3SiCl, (Ph3Si)2O, Ph2SiH2, Ph2SiMe2 and Ph2SiCl2 as solutes in carbon tetrachloride or cyclohexane solution at 298 K. The data are analysed in terms of the preferred solution-state conformations.


1968 ◽  
Vol 46 (18) ◽  
pp. 2961-2962 ◽  
Author(s):  
E. Bock ◽  
D. Iwacha

The dipole moments of ortho-, meta-, para-, and penta-fluorostyrene were determined in dilute benzene solution at 25 °C. It was found that the magnitude of the molecular dipole moment depends on the position of the fluorine atom in the benzene ring.


1976 ◽  
Vol 54 (11) ◽  
pp. 1672-1677 ◽  
Author(s):  
Giuseppe C. Pappalardo ◽  
Salvatore Gruttadauria ◽  
Emanuele Maccarone ◽  
Giuseppe Musumarra

The electric dipole moments of a number of 2-thiophenesulphonanilides have been measured in benzene solution at 25 °C. The data obtained have been analyzed by the vectorial additive method of calculation. Results of the calculations have shown that the SO2—NH group prefers the gauche-syn conformation in which the N—H bond lies on the plane bisecting the OSO angle. Conformations about the Ph—N bond in the 2′- and 3′-substituted derivatives have also been determined and are discussed.


1983 ◽  
Vol 38 (1) ◽  
pp. 90-94
Author(s):  
D. Carbone ◽  
A. Chisari ◽  
E. Montoneri ◽  
G. C. Pappalardo ◽  
G. Scarlata

Abstract The electric dipole moments of trans-1,2 diaryl acrilonitrile 1 and of a series of triaryl acrilonitriles 2-14 were measured in benzene solution at 25 °C. A mesomeric moment of 0.4 D was found to act between the phenyl-and the nitrile groups through the vinylic bond in triaryl acrilonitrile 2. For this molecule the direction of action of the total molecular moment was calculated and used to evaluate theoretical moments for the possible E and Z configurations of some unsymmetrical derivative compounds of the series. The configuration was settled for each com-pound on the basis of comparison between experimental and calculated dipole moment values.


2013 ◽  
Vol 28 (29) ◽  
pp. 1350147 ◽  
Author(s):  
TAKESHI FUKUYAMA ◽  
ALEXANDER J. SILENKO

General classical equation of spin motion is explicitly derived for a particle with magnetic and electric dipole moments in electromagnetic fields. Equation describing the spin motion relative to the momentum direction in storage rings is also obtained.


1971 ◽  
Vol 26 (11) ◽  
pp. 1809-1812 ◽  
Author(s):  
E. Tiemann

Stark-effect measurements on pure rotational transitions of TlBr and Til are described. The derived electric dipole moments of the most abundant isotopic molecules on the ground vibrational state are:205TL79Br : | μ0| = (4.493 ± 0.050) D , 205Tl127 I | μ 0| =(4.607 ± 0.070) D .The electric dipole moment of 205Tl19F | μ 0|=4.2282 (8) D was used as standard.


2018 ◽  
Vol 175 ◽  
pp. 06018 ◽  
Author(s):  
Jack Dragos ◽  
Thomas Luu ◽  
Andrea Shindler ◽  
Jordy de Vries

We utilize the gradient flow to define and calculate electric dipole moments induced by the strong QCD θ-term and the dimension-6 Weinberg operator. The gradient flow is a promising tool to simplify the renormalization pattern of local operators. The results of the nucleon electric dipole moments are calculated on PACS-CS gauge fields (available from the ILDG) using Nf = 2+1, of discrete size 323×64 and spacing a ≃ 0.09 fm. These gauge fields use a renormalization-group improved gauge action and a nonperturbatively O(a) improved clover quark action at β = 1.90, with cSW = 1.715. The calculation is performed at pion masses of mπ ≃ 411, 701 MeV.


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