Polarizable Continuum Model (PCM) Calculations of Solvent Effects on Optical Rotations of Chiral Molecules

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

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.



1988 ◽  
Vol 179 (1) ◽  
pp. 353-366 ◽  
Author(s):  
S. Miertuš ◽  
V. Frecer ◽  
M. Májeková




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.



Polyhedron ◽  
2005 ◽  
Vol 24 (16-17) ◽  
pp. 2671-2675 ◽  
Author(s):  
Kimikazu Sugimori ◽  
Tomofumi Shuku ◽  
Ayumu Sugiyama ◽  
Hidemi Nagao ◽  
Takeshi Sakurai ◽  
...  


2008 ◽  
Vol 07 (01) ◽  
pp. 37-52 ◽  
Author(s):  
TEODORICO C. RAMALHO ◽  
ELAINE F. F. DA CUNHA ◽  
FERNANDO C. PEIXOTO ◽  
JOSÉ DANIEL FIGUEROA-VILLAR

15 N and 13 C NMR chemical shifts for four radiosensitizers have been calculated and compared with experimental data. The thermal and solvent effects on NMR spectra were simulated with the polarizable continuum model and an alternative molecular dynamics/quantum mechanics methodology. Magnetic shielding tensors were evaluated at the GIAO-B3LYP and GIAO-OPBE level using II' and 6-311+(2D,P) basis sets, showing that it is essential to incorporate the dynamics and solvent effects on NMR calculations in condensed phases.



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