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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
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Hydrogen bond coupling in sodium dihydrogen triacetate
Ashour A Ahmed1, Rifaat H Hilal, Mohamed F Shibl
1Department of Chemistry Faculty of Science, Cairo University, Giza, 12613, Egypt.
Journal of Molecular Modeling
|July 21, 2014
Summary
Hydrogen bonds in sodium dihydrogen triacetate (SDHTA) are uncoupled. Elongating one hydrogen bond does not influence the other, revealing key insights into O-H…O systems.
Area of Science:
- Chemical Physics
- Molecular Dynamics
- Hydrogen Bonding
Background:
- Hydrogen bonds are crucial for biological structures and functions.
- Understanding hydrogen bond coupling is essential for modeling O-H…O systems.
- Sodium dihydrogen triacetate (SDHTA) serves as a model compound.
Purpose of the Study:
- To investigate hydrogen bond coupling in SDHTA.
- To model O-H…O hydrogen bonded systems.
- To analyze the relationship between wave functions and hydrogen bond parameters.
Main Methods:
- Derivation of a two-dimensional potential energy surface from a full-dimensional one.
- Selection of relevant vibrational modes for hydrogen bonds.
- Calculation of potential energy surfaces for HH, HD, DH, and DD isotopomers using normal modes.
- Analysis of anharmonic motion near equilibrium geometry.
Main Results:
- Calculated potential energy surfaces for different isotopomers of SDHTA.
- Discussed ground state wave functions and their correlation with hydrogen bond structural parameters.
- Determined that hydrogen bonds in SDHTA are uncoupled.
Conclusions:
- The hydrogen bonds in SDHTA are confirmed to be uncoupled.
- Elongation of a deuterated hydrogen bond does not impact the non-deuterated one.
- Findings provide insights into the behavior of O-H…O hydrogen bonded systems.
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