Energy decomposition analysis methods for intermolecular interactions with excited states

Tang, Zhen; Shao, B.; Wu, Wei; Su, Peifeng

doi:10.1039/d3cp01760e

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2024

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Cited by 4 publications

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Energy Decomposition Analysis and Its Applications

2024

Exploring Chemical Concepts Through Theory and Computation

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Energy Decomposition Analysis and Its Applications

2024

Exploring Chemical Concepts Through Theory and Computation

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Anisole–Water and Anisole–Ammonia Complexes in Ground and Excited (S₁) States: A Multiconfigurational Symmetry-Adapted Perturbation Theory (SAPT) Study

Krzemińska,

Biczysko,

Pernal

et al. 2024

J. Phys. Chem. A

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Binary complexes of anisole have long been considered paradigm systems for studying microsolvation in both the ground and electronically excited states. We report a symmetry-adapted perturbation theory (SAPT) analysis of intermolecular interactions in anisole–water and anisole–ammonia complexes within the framework of the multireference SAPT(CAS) method. Upon the S1 ← S0 electronic transition, the hydrogen bond in the anisole–water dimer is weakened, which SAPT(CAS) shows to be determined by changes in the electrostatic energy. As a result, the water complex becomes less stable in the relaxed S1 state despite decreased Pauli repulsion. Stronger binding of the anisole–ammonia complex following electronic excitation is more nuanced and results from counteracting shifts in the repulsive (exchange) and attractive (electrostatic, induction and dispersion) forces. In particular, we show that the formation of additional binding N–H···π contacts in the relaxed S1 geometry is possible due to reduced Pauli repulsion in the excited state. The SAPT(CAS) interaction energies have been validated against the coupled cluster (CC) results and experimentally determined shifts of the S1 ← S0 anisole band. While for the hydrogen-bonded anisole–water dimer SAPT(CAS) and CC shifts are in excellent agreement, for ammonia SAPT(CAS) is only qualitatively correct.

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Lewis Base and Metal Cation-Assisted Isomerization of Disilyne

Zhang,

Li,

et al. 2024

Organometallics

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Energy decomposition analysis methods for intermolecular interactions with excited states

Abstract: Understanding the nature of intermolecular interactions with excited states is highly expected but challenging. As the widely-used numerical analysis tool for intermolecular interactions, most of energy decomposition analysis (EDA) methods...

Cited by 4 publications

References 38 publications

Energy Decomposition Analysis and Its Applications

Energy Decomposition Analysis and Its Applications

Anisole–Water and Anisole–Ammonia Complexes in Ground and Excited (S₁) States: A Multiconfigurational Symmetry-Adapted Perturbation Theory (SAPT) Study

Lewis Base and Metal Cation-Assisted Isomerization of Disilyne

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Energy decomposition analysis methods for intermolecular interactions with excited states

Abstract: Understanding the nature of intermolecular interactions with excited states is highly expected but challenging. As the widely-used numerical analysis tool for intermolecular interactions, most of energy decomposition analysis (EDA) methods...

Cited by 4 publications

References 38 publications

Energy Decomposition Analysis and Its Applications

Energy Decomposition Analysis and Its Applications

Anisole–Water and Anisole–Ammonia Complexes in Ground and Excited (S1) States: A Multiconfigurational Symmetry-Adapted Perturbation Theory (SAPT) Study

Lewis Base and Metal Cation-Assisted Isomerization of Disilyne

Contact Info

Product

Resources

About

Anisole–Water and Anisole–Ammonia Complexes in Ground and Excited (S₁) States: A Multiconfigurational Symmetry-Adapted Perturbation Theory (SAPT) Study