Assessment of DFT methods for studying acid gas capture by ionic liquids

2015 ◽  
Vol 17 (40) ◽  
pp. 26875-26891 ◽  
Author(s):  
Gregorio García ◽  
Mert Atilhan ◽  
Santiago Aparicio
Keyword(s):  
Ionic Liquids ◽  
Density Functional ◽  
Dft Methods ◽  
Acid Gas ◽  
Density Functional Methods ◽  
Functional Methods ◽  
First Time

For the first time, this work reports an analysis of the performance of Density Functional methods for studying acid gas capture (CO2 and SO2) by ionic liquids (ILs).

scholarly journals Assessment of density functional methods for exciton binding energies and related optoelectronic properties

RSC Advances ◽  
2015 ◽  
Vol 5 (123) ◽  
pp. 101370-101376 ◽  
Author(s):  
Jui-Che Lee ◽  
Jeng-Da Chai ◽  
Shiang-Tai Lin
Keyword(s):  
Binding Energy ◽  
Density Functional ◽  
Mean Absolute Error ◽  
Absolute Error ◽  
Binding Energies ◽  
Optoelectronic Properties ◽  
Exciton Binding Energy ◽  
Dft Methods ◽  
Density Functional Methods ◽  
Functional Methods

Mean absolute error (MAE) in exciton binding energy (Eb) from 9 DFT methods against benchmark CCSD and EOM-CCSD.

Substituent effect on N–H bond dissociation enthalpies of carbamates: a theoretical study

2015 ◽  
Vol 93 (3) ◽  
pp. 279-288 ◽  
Author(s):  
Rupinder preet Kaur ◽  
Damanjit Kaur ◽  
Ritika Sharma
Keyword(s):  
Substituent Effect ◽  
Density Functional ◽  
Theoretical Study ◽  
Natural Bond Orbital ◽  
Stabilization Energy ◽  
Isodesmic Reactions ◽  
Bond Dissociation ◽  
Density Functional Methods ◽  
Functional Methods ◽  
Orbital Analysis

The present investigation deals with the study of the N–H bond dissociation enthalpies (BDEs) of the Y-substituted (NH2-C(=X)Y-R) and N-substituted ((R)(H)NC(=X)YH) carbamates (X, Y = O, S, Se; R = H, CH3, F, Cl, NH2), which have been evaluated using ab initio and density functional methods. The variations in N−H BDEs of these Y-substituted and N-substituted carbamates as the effect of substituent have been understood in terms of molecule stabilization energy (ME) and radical stabilization energy (RE), which have been calculated using the isodesmic reactions. The natural bond orbital analysis indicated that the electrodelocalization of the lone pairs of heteroatoms in the molecules and radicals affect the ME and RE values depending upon the type and site of substitution (whether N- or Y-). The variations in N−H BDEs depend upon the combined effect of molecule stabilization and radical stabilization by the various substituents.

TIME DEPENDENT DENSITY FUNCTIONAL METHODS AND THEIR APPLICATION TO CHEMICAL PHYSICS

2004 ◽  
Vol 03 (01) ◽  
pp. 117-144 ◽  
Author(s):  
AKIRA YOSHIMORI
Keyword(s):  
Density Functional ◽  
Nonlinear Effects ◽  
Functional Method ◽  
Time Dependent ◽  
Solvation Dynamics ◽  
Chemical Physics ◽  
Functional Theory ◽  
Polar Liquids ◽  
Density Functional Methods ◽  
Functional Methods

This article reviews microscopic development of time dependent functional method and its application to chemical physics. It begins with the formulation of density functional theory. The time dependent extension is discussed after the equilibrium formulation. Its application is explained by solvation dynamics. In addition, it reviews studies of nonlinear effects on polar liquids and simple mixtures.

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