The experimental determination of ground state dipole moments from dielectric constant measurements using ellipsoidal cavity correction factors

1981 ◽  
Vol 74 (6) ◽  
pp. 3514-3521 ◽  
Author(s):  
Anne B. Myers ◽  
Robert R. Birge
Keyword(s):  
Dielectric Constant ◽  
Experimental Determination ◽  
Ground State ◽  
Dipole Moments ◽  
Correction Factors ◽  
Ellipsoidal Cavity ◽  
Ground State Dipole Moments

scholarly journals Studies on Photophysical Properties of Mono-carbonyl Curcumin Analogues: Experimental and Theoretical approach

2018 ◽  
Vol 34 (4) ◽  
pp. 2170-2179
Author(s):  
Manjula Rayanal ◽  
Prasad Pralhad Pujar ◽  
Sridhar D
Keyword(s):  
Excited State ◽  
Ground State ◽  
Dipole Moments ◽  
Photophysical Properties ◽  
Stokes Shift ◽  
Solvent Polarity ◽  
Frontier Molecular Orbital ◽  
Curcumin Analogues ◽  
Td Dft ◽  
Ground State Dipole Moments

The solvatochromic fluorescence behaviour of mono-carbonyl curcumin analogues has been studied in ten different solvents ranging from non-polar to polar. The solvent effect on the spectral properties of analogues has been discussed. The ground state dipole moments were estimated experimentally by Bilot-Kawski equation which is a function of Stokes shift with the solvent polarity parameters and Guggenheim method and theoretically by TD-DFT studies. The excited state dipole moment was determined using Bilot-Kawski equations. The excited state dipole moments for the two molecules were found to be higher than their corresponding ground state dipole moments. Theoretically Frontier molecular orbital (HOMO/ LUMO) energies were determined by Gaussian 09 W software using TD-DFT.

scholarly journals Experimental determination of the dielectric constant of wheat grain and cluster straw in different moisture contents

2019 ◽  
Vol 8 (1) ◽  
pp. 629-635 ◽  
Author(s):  
Mohammad Jafari ◽  
Gholamreza Chegini ◽  
Behrooz Rezaeealam ◽  
Amir Abbas Shaygani Akmal
Keyword(s):  
Dielectric Constant ◽  
Experimental Determination ◽  
Wheat Grain ◽  
Moisture Contents

Appareil pour la mesure de moments dipolaires

1970 ◽  
Vol 48 (11) ◽  
pp. 1698-1702 ◽  
Author(s):  
C. Barbeau ◽  
L. Ricard ◽  
J. Turcotte
Keyword(s):  
Dielectric Constant ◽  
Dipole Moments ◽  
Guggenheim Method

A system is described which enables the determination of dipole moments of magnitude 1.0 D from as little as 10−4 mole of substance. The dielectric constant can be measured with a precision of ± 0.000008 unit. Only one weighing is necessary. A modified Guggenheim method, in which only the values of the dielectric constant are required, is used to calculate the dipole moments.

Experimental Determination of Dipole Moments of Some Benzamide Derivatives

1998 ◽  
Vol 53 (8) ◽  
pp. 684-688
Author(s):  
J. Heidt ◽  
J. R. Heidt ◽  
M. Raciniewskab
Keyword(s):  
Excited State ◽  
Experimental Determination ◽  
Gas Phase ◽  
Electronic Absorption ◽  
Dipole Moments ◽  
Absorption Bands ◽  
Excited State Dipole Moments ◽  
Benzamide Derivatives

Abstract The excited state dipole moments of some benzamide derivatives are determined. The method of solvent induced shifts of electronic absorption bands in comparison with their positions in the gas phase is used. Some regular trends revealed in the obtained data are discussed. The present results are compared with those available in the literature.

Experimental determination of the dipole moments of the X(2Σ+) and B(2Σ+) states of the CN molecule

1968 ◽  
Vol 46 (24) ◽  
pp. 2815-2819 ◽  
Author(s):  
Ritchie Thomson ◽  
F. W. Dalby
Keyword(s):  
Emission Spectrum ◽  
Experimental Determination ◽  
Electric Fields ◽  
Dipole Moments ◽  
High Electric Fields

From observation of the electronic emission spectrum in high electric fields, the dipole moments of the X(2Σ+) and B(2Σ+) states of the CN molecule have been determined to be 1.45 ± 0.08 and 1.15 ± 0.08 debye, respectively. The relative signs of the dipole moments in these two states are shown to be opposite.

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