scholarly journals Theoretical Study of Charge Transfer in Styryl Thiazilo Quinoxaline Dyes STQ-1, STQ-2,and STQ-3 in Organic Media System

2013 ◽  
Vol 10 (4) ◽  
pp. 1262-1268
Author(s):  
Baghdad Science Journal
Keyword(s):  
Charge Transfer ◽  
Rate Constant ◽  
Theoretical Study ◽  
Organic Media ◽  
Styryl Dyes ◽  
Energy Potential ◽  
Media System ◽  
Dielectric Model ◽  
Franck Condon ◽  
Potential Height

Charge transfer in styryl dyes STQ-1, STQ-2,and STQ-3 with organic media system has been studied theoretically depending on the Franck- Condon rule and continuum dielectric model . The reorientation energies (eV) were evaluated theoretically depending on dipole momentum, dielectric constant , and refrective index n. The rate constant of charge transfer has been calculated depending on the reorientation energy (eV) ,effective free energy , potential height barrier , and coupling coefficient . A matlap program has been written to calculated the rate constant of charge transfer and other parameter. The results of calculations show that STQ-2 dye is more reaction for charge transfer compare with STQ-1 and STQ-3 dyes

Regeneration Mechanism Studied by Potential-Time Response to Sinusoidal Current-Time Function

1997 ◽  
Vol 62 (10) ◽  
pp. 1511-1526
Author(s):  
María-Luisa Alcaraz ◽  
Ángela Molina
Keyword(s):  
Kinetic Parameters ◽  
Rate Constant ◽  
Theoretical Study ◽  
Time Function ◽  
Time Response ◽  
Current Time ◽  
Regeneration Mechanism ◽  
Sinusoidal Current ◽  
Regeneration Processes

A theoretical study of the potential-time response to sinusoidal current applied to static and dynamic electrodes for regeneration processes is presented. Methods for determination of the regeneration fraction, rate constant of the chemical reaction and heterogeneous kinetic parameters are proposed.

scholarly journals Theoretical study of Charge Transfer simulation At Fe Metal with Ge and ZnO semiconductors Nano devices material

2017 ◽  
Vol 119 ◽  
pp. 325-331 ◽  
Author(s):  
Hadi J.M. Al-Agealy ◽  
Taif Saad Al Maadhede ◽  
B. Al Shafaay ◽  
Raad H. Mjeed ◽  
Ahmed M. Ashweik
Keyword(s):  
Charge Transfer ◽  
Theoretical Study

scholarly journals Exploring the Franck-Condon region of a photoexcited charge transfer complex in solution to interpret femtosecond stimulated Raman spectroscopy: excited state electronic structure methods to unveil non-radiative pathways

2021 ◽  
Author(s):  
Federico Coppola ◽  
Paola Cimino ◽  
Umberto Raucci ◽  
Maria Gabriella Chiariello ◽  
Alessio Petrone ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Electronic Structure ◽  
Excited State ◽  
Charge Transfer ◽  
Charge Transfer Complex ◽  
Main Role ◽  
Photoinduced Charge Transfer ◽  
Electronic Structure Methods ◽  
Franck Condon ◽  
Photoinduced Charge

We present electronic structure methods to unveil non-radiative pathways of photoinduced charge transfer (CT) reactions that play a main role in photophysics and light harvesting technologies. A prototypical π-stacked molecular...

Theoretical study on the charge transfer mechanism at donor/acceptor interface: Why TTF/TCNQ is inadaptable to photovoltaics?

2016 ◽  
Vol 145 (24) ◽  
pp. 244705 ◽  
Author(s):  
Shuang-Bao Li ◽  
Yun Geng ◽  
Yu-Ai Duan ◽  
Guang-Yan Sun ◽  
Min Zhang ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Theoretical Study ◽  
Transfer Mechanism ◽  
Charge Transfer Mechanism ◽  
Donor Acceptor

Second hyperpolarizability of multimetallocenes [Cp–Mn–Cp] of Be, Mg and Ca

2015 ◽  
Vol 14 (01) ◽  
pp. 1550002 ◽  
Author(s):  
Kaushik Hatua ◽  
Prasanta K. Nandi
Keyword(s):  
Charge Transfer ◽  
Theoretical Study ◽  
Small Variation ◽  
Cooperative Effect ◽  
Second Hyperpolarizability ◽  
Nlo Property ◽  
Metal Atoms ◽  
Bonding Interaction ◽  
Charge Transfer Transitions ◽  
The Difference

Multimetallocene complexes ( Cp – M n– Cp ) of Be , Mg and Ca have been considered for the theoretical study of static second hyperpolarizability using a number of DFT functionals. Owing to the cooperative effect in bonding, beryllium forms multiberyllocene complexes ( Cp – Be n– Cp ) which have sufficient thermal stability with respect to dissociation into neutral fragments up to n = 10. On the other hand, multimetallocene complexes of Mg and Ca are found to be stable for n ≤ 5 which may be due to the weaker covalent bonding interaction between the larger metal atoms. The rather small variation of linear and cubic polarizabilities of Cp – Be n– Cp complexes beyond n = 5 arises from the rather weaker charge transfer transitions. The difference in NLO property among the investigated metal complexes arises from the extent of charge transfer from the terminal metal atoms and the distance between them. The charge transfer at longer distances in the ground state of Mg and Ca complexes leads to more intense electronic transition — the spectroscopic parameters of which strongly favors the enhancement of second hyperpolarizability.

Theoretical study on excited state structures and charge transfer characteristics of 2,2′-bipyridine

2003 ◽  
Vol 137 (1-3) ◽  
pp. 1095-1096 ◽  
Author(s):  
Z.M. Su ◽  
Y.H. Kan ◽  
Z.H. Huang ◽  
Y. Liao ◽  
Y.Q. Qiu ◽  
...  
Keyword(s):  
Excited State ◽  
Charge Transfer ◽  
Theoretical Study ◽  
Transfer Characteristics

Theoretical study on the structures and absorption properties of styryl dyes with quinoline nucleus

2007 ◽  
Vol 72 (3) ◽  
pp. 357-362 ◽  
Author(s):  
Lan-Ying Wang ◽  
Qin-Wen Chen ◽  
Gao-Hong Zhai ◽  
Zhen-Yi Wen ◽  
Zu-Xun Zhang
Keyword(s):  
Theoretical Study ◽  
Styryl Dyes ◽  
Absorption Properties
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