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A DFT approach to analyze charge transfer path through trans and cis isomers of azobenzene

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Title A DFT approach to analyze charge transfer path through trans and cis isomers of azobenzene
 
Creator Karthika, C
Praveena, R
Sadasivam, K
 
Subject DFT
Azobenzene
Molecular orbitals
Charge distribution
NBO
 
Description 700-704
The influence of external electrical field (EF) over the trans and cis isomers of azobenzene is investigated upto molecular orbital level with the aid of density functional theory. The frontier molecular orbital analysis and electrostatic potential (ESP) mapping are used to figure out the response of the molecules (trans and cis isomers of azobenzene) to the applied EF. The variation in dipole moment gives the extent of polarization in the molecule due to EF. With the aid of natural bond orbital analysis (NBO) the possible charge transfer path through the molecule can be predicted. ESP and NBO analysis clearly shows that drastic charge redistribution takes place for the EF strength of 0.15 V/Å. Hence the EF strength above 0.15 V/Å can be considered as threshold filed strength for organic molecular conductance. All these theoretical investigations provide a basic knowledge about the influence of molecular conformation over the conductivity of a molecule in the presence of EF.
 
Date 2021-06-15T07:44:31Z
2021-06-15T07:44:31Z
2021-05
 
Type Article
 
Identifier 0975-0975(Online); 0376-4710(Print)
http://nopr.niscair.res.in/handle/123456789/57484
 
Language en_US
 
Rights CC Attribution-Noncommercial-No Derivative Works 2.5 India
 
Publisher NISCAIR-CSIR, India
 
Source IJC-A Vol.60A(05) [May 2021]