Solvent Effects on trans/gauche Conformational Equilibria of Substituted Chloroethanes:  a Polarizable Continuum Model Study

2001 ◽  
Vol 105 (48) ◽  
pp. 10807-10815 ◽  
Author(s):  
Chiara Cappelli ◽  
Stefano Corni ◽  
Jacopo Tomasi
2021 ◽  
Vol 20 (1) ◽  
pp. 59-68
Author(s):  
Zohreh Khanjari ◽  
Bita Mohtat ◽  
Reza Ghiasi ◽  
Hoorieh Djahaniani ◽  
Farahnaz Kargar Behbahani

This research examined the effects of solvent polarity and temperature on the tautomerization of a carbonitrile molecule at CAM-B3LYP/6-311G (d,p) level of theory. The selected solvents were n-hexane, diethyl ether, pyridine, ethanol, methanol, and water. The solvent effects were examined by the self-consistent reaction field theory (SCRF) based on conductor-like polarizable continuum model (CPCM). The solvent effects were explored on the energy barrier, frontier orbitals energies, and HOMO-LUMO gap. Dependencies of thermodynamic parameters (ΔG and ΔH) on the dielectric constants of solvents were also tested. Specifically, the temperature dependencies of the thermodynamics parameters were studied within 100–1000 K range. The rate constant of the tautomerism reaction was computed from 300 to 1200 K, in the gas phase.


2002 ◽  
Vol 106 (25) ◽  
pp. 6102-6113 ◽  
Author(s):  
B. Mennucci ◽  
J. Tomasi ◽  
R. Cammi ◽  
J. R. Cheeseman ◽  
M. J. Frisch ◽  
...  

2017 ◽  
Vol 19 (34) ◽  
pp. 23289-23301 ◽  
Author(s):  
Xue-fang Yu ◽  
Shohei Yamazaki ◽  
Tetsuya Taketsugu

Solvent effects on the excited-state double proton transfer (ESDPT) mechanism in the 7-azaindole (7AI) dimer were investigated using the time-dependent density functional theory (TDDFT) method.


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