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Construction and Systematical Symmetric Studies of a Series of Supramolecular Clusters with Binary or Ternary Ammonium Triphenylacetates
Published on: February 15, 2016
Pathways for hydrogen bond switching in a tetrameric methanol cluster.
Massimo Mella1, Kenneth D M Harris
1School of Chemistry, Cardiff University, Park Place, Cardiff, Wales, UK CF10 3AT. MellaM@cardiff.ac.uk
Computational methods reveal stable structures and switching pathways for hydrogen-bonded methanol tetramers. This provides insights into the dynamic properties of these molecular clusters.
Area of Science:
- Computational chemistry
- Molecular dynamics
- Hydrogen bonding
Background:
- Methanol clusters are fundamental in understanding hydrogen bond networks.
- Investigating the structural dynamics of small molecular clusters is crucial for chemical physics.
Purpose of the Study:
- To explore the structural landscape of hydrogen-bonded methanol tetramers.
- To identify stable configurations and pathways for structural interconversion.
- To discuss the implications for the cluster's dynamic properties.
Main Methods:
- Utilized second-order Møller-Plesset (MP2) perturbation theory.
- Employed medium and large basis sets for high-level electronic structure calculations.
- Geometrically based calculations on a tetrahedral oxygen atom arrangement.
Main Results:
- Identified multiple hydrogen-bonded structures representing minima on the potential energy surface.
- Elucidated complete pathways for interconversion between these structures via hydrogen bond switching.
- Established the relationship between structural configurations and dynamic behavior.
Conclusions:
- The study provides a detailed map of the conformational space for methanol tetramers.
- Hydrogen bond switching is a key mechanism governing the dynamics of these clusters.
- Findings contribute to a deeper understanding of molecular self-assembly and dynamics.
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