Energy Decomposition Analysis with a Stable Charge-Transfer Term for Interpreting Intermolecular Interactions

2016 ◽  
Vol 12 (6) ◽  
pp. 2569-2582 ◽  
Author(s):  
Ka Un Lao ◽  
John M. Herbert
Keyword(s):  
Charge Transfer ◽  
Intermolecular Interactions ◽  
Decomposition Analysis ◽  
Energy Decomposition Analysis ◽  
Energy Decomposition ◽  
Transfer Term

scholarly journals Energy decomposition analysis approaches and their evaluation on prototypical protein–drug interaction patterns

2015 ◽  
Vol 44 (10) ◽  
pp. 3177-3211 ◽  
Author(s):  
Maximillian J. S. Phipps ◽  
Thomas Fox ◽  
Christofer S. Tautermann ◽  
Chris-Kriton Skylaris
Keyword(s):  
Drug Interaction ◽  
Charge Transfer ◽  
Interaction Energy ◽  
Decomposition Analysis ◽  
Energy Decomposition Analysis ◽  
Chemical Components ◽  
Protein Drug ◽  
Interaction Patterns ◽  
Energy Decomposition

The partitioning of the interaction energy into chemical components such as electrostatics, polarization, and charge transfer is possible with energy decomposition analysis approaches. We review and evaluate these for biomolecular applications.

scholarly journals Characterizing the interplay of Pauli repulsion, electrostatics, dispersion and charge transfer in halogen bonding with energy decomposition analysis

2018 ◽  
Vol 20 (2) ◽  
pp. 905-915 ◽  
Author(s):  
Jonathan Thirman ◽  
Elric Engelage ◽  
Stefan M. Huber ◽  
Martin Head-Gordon
Keyword(s):  
Charge Transfer ◽  
Bond Strength ◽  
Halogen Bond ◽  
Decomposition Analysis ◽  
Halogen Bonding ◽  
Energy Decomposition Analysis ◽  
Energy Decomposition ◽  
Pauli Repulsion

Variational energy decomposition analysis establishes charge-transfer as the origin of halogen bond strength differences that go against electrostatics.

DFT-steric-based energy decomposition analysis of intermolecular interactions

2014 ◽  
Vol 133 (5) ◽  
Author(s):  
Dong Fang ◽  
Jean-Philip Piquemal ◽  
Shubin Liu ◽  
G. Andrés Cisneros
Keyword(s):  
Intermolecular Interactions ◽  
Decomposition Analysis ◽  
Energy Decomposition Analysis ◽  
Energy Decomposition

scholarly journals Consistent Inclusion of Continuum Solvation in Energy Decomposition Analysis: Theory and Application to Molecular CO2 Reduction Catalysts

2020 ◽  
Author(s):  
Yuezhi Mao ◽  
Matthias Loipersberger ◽  
Kareesa Kron ◽  
Jeffrey Derrick ◽  
Christopher Chang ◽  
...  
Keyword(s):  
Intermolecular Interactions ◽  
Chemical Reactivity ◽  
Decomposition Analysis ◽  
Substituent Effects ◽  
Co2 Reduction ◽  
Energy Decomposition Analysis ◽  
Energy Decomposition ◽  
Coulombic Interaction ◽  
Model Complexes ◽  
Localized Molecular Orbitals

<p>To facilitate computational investigation of intermolecular interactions in the solution phase, we report the development of ALMO-EDA(solv), a scheme that allows the application of continuum solvent models within the framework of energy decomposition analysis (EDA) based on absolutely localized molecular orbitals (ALMOs). In this scheme, all the quantum mechanical states involved in the variational EDA procedure are computed with the presence of solvent environment so that solvation effects are incorporated in the evaluation of all its energy components. After validation on several model complexes, we employ ALMO-EDA(solv) to investigate substituent effects on two classes of complexes that are related to electrochemical CO<sub>2</sub> reduction catalysis. For [FeTPP(CO<sub>2</sub>−κC)]<sup>2−</sup> (TPP = tetraphenylporphyrin), we reveal that two ortho substituents which yield most favorable CO2 binding, −N(CH<sub>3</sub>)<sub>3</sub><sup>+</sup> (TMA) and −OH, stabilize the complex via through-structure and through-space mechanisms, respectively. The Coulombic interaction between the positively charged TMA group and activated CO<sub>2</sub> is found to be largely attenuated by the polar solvent. Furthermore, we also provide computational support for the design strategy of utilizing bulky, flexible ligands to stabilize activated CO<sub>2</sub> via long-range Coulomb interactions, which creates biomimetic solvent-inaccessible “pockets” in that electrostatics is unscreened. For the reactant and product complexes associated with the electron transfer from the <i>p</i>-terphenyl radical anion to CO<sub>2</sub> , we demonstrate that the double terminal substitution of <i>p</i>-terphenyl by electron-withdrawing groups considerably strengthens the binding in the product state while moderately weakens that in the reactant state, which are both dominated by the substituent tuning of the electrostatics component. These applications illustrate that this new extension of ALMO-EDA provides a valuable means to unravel the nature of intermolecular interactions and quantify their impacts on chemical reactivity in solution.<br></p>

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