scholarly journals Electron Donor-Acceptor Interaction Parameters of Calcon Carboxylic Acid with Nano Cobalt Sulphate in Methanol ( Meoh ) - Water at Different Temperatures by Applying Conductance Studies

2016 ◽  
Vol 1 (1) ◽  
pp. 1-8
Author(s):  
E.A. Gomaa ◽  
M.A. Mousa ◽  
M. Khairy ◽  
A. Shokr
Keyword(s):  
Carboxylic Acid ◽  
Electron Donor ◽  
Interaction Parameters ◽  
Acceptor Interaction ◽  
Different Temperatures ◽  
Donor Acceptor ◽  
Calcon Carboxylic Acid

scholarly journals The Surface Properties of Calcite: An Adsorption Model with Orbital Control

2001 ◽  
Vol 19 (3) ◽  
pp. 237-244 ◽  
Author(s):  
Nikolai V. Nikolenko
Keyword(s):  
Surface Properties ◽  
Organic Compounds ◽  
Electron Donor ◽  
Organic Molecules ◽  
Orbital Interaction ◽  
Adsorption Model ◽  
Acceptor Interaction ◽  
Donor Acceptor ◽  
Correlation Parameters ◽  
Adsorptive Properties

The energies of unoccupied and occupied orbitals were used as the correlation parameters between the electronic and adsorptive properties of organic molecules. A model describing the chemisorption of organic compounds on CaCO3 involving two types of interaction, i.e. two-electron, donor–acceptor interaction HOMO(adsorbent) → LUMO(adsorbate) and four-electron, three-orbital interaction HOMO(adsorbent) → {LUMO(adsorbate) + HOMO(adsorbate)}, was proposed. It was concluded that strengthening of the bond involved in chemisorption occurred if the energies of the occupied orbitals associated with the adsorbate and adsorbent were concurrent.

Electron-Donor-Acceptor Complexing Reagents for the Analysis of Pesticides. I. Survey of Reagents and Instrumental Techniques

1971 ◽  
Vol 54 (5) ◽  
pp. 1100-1109
Author(s):  
O Hutzinger ◽  
W D Jamieson ◽  
J D Macneil ◽  
R W Frei
Keyword(s):  
Thin Layer ◽  
Electron Donor ◽  
Complexing Agent ◽  
Sample Tube ◽  
Π Complex ◽  
Different Temperatures ◽  
Donor Acceptor ◽  
High Degree ◽  
Layer Chromatography

Abstract The formation of electron-donor-acceptor complexes for the detection of pesticides and their metabolites in conjunction with thin layer chromatography is discussed. The method is nondestructive, as the π-complex formation is reversible. Thus, the pesticide (or metabolite) may be recovered after separation from the complexing agent. The complexes studied may be transferred into a mass spectrometer sample tube and individual spectra of the pesticide and complexing agent may be obtained at different temperatures. The complexes are generally highly colored and this is an additional aid in distinguishing between closely related pesticides and metabolites. The absorption spectra of the chromatographed species on thin layer plates may be determined by in situ reflectance spectroscopy. The techniques discussed lack the sensitivity of methods such as esterase inhibition or fluorescence, but provide a high degree of selectivity for samples which may be separated at the microgram level or higher. The method of complexation and the instrumental techniques discussed could be useful to researchers involved in metabolic or structural studies.

Breakdown of Exciton Splitting through Electron Donor–Acceptor Interaction: A Caveat for the Application of Exciton Chirality Method in Macromolecules

2013 ◽  
Vol 117 (35) ◽  
pp. 17927-17939 ◽  
Author(s):  
Jimmy Joy ◽  
Rijo T. Cheriya ◽  
Kalaivanan Nagarajan ◽  
Anil Shaji ◽  
Mahesh Hariharan
Keyword(s):  
Electron Donor ◽  
Acceptor Interaction ◽  
Exciton Splitting ◽  
Donor Acceptor
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