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Construction and Systematical Symmetric Studies of a Series of Supramolecular Clusters with Binary or Ternary Ammonium Triphenylacetates
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A three-component hydrogen bonded framework.

Phonlakrit Muang-Non1, Meabh K S Perry-Britton1, Lauren K Macreadie2

  • 1Research School of Chemistry, Australian National University, Canberra, ACT, Australia. Nicholas.white@anu.edu.au.

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|July 4, 2024
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Summary
This summary is machine-generated.

Researchers created a porous hydrogen-bonded framework (1⋅biphen⋅TP) using specific organic molecules. The framework

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Area of Science:

  • Supramolecular chemistry
  • Materials science
  • Crystallography

Background:

  • Hydrogen-bonded frameworks are crucial in materials science.
  • Controlling the assembly of multi-component frameworks is challenging.
  • The tetra-amidinium component (1^4+) offers unique binding possibilities.

Purpose of the Study:

  • To synthesize and characterize a novel three-component hydrogen-bonded framework.
  • To investigate the effect of solvent composition on framework formation.
  • To explore the self-assembly behavior of organic building blocks.

Main Methods:

  • Solvothermal synthesis.
  • Single-crystal X-ray diffraction.
  • Powder X-ray diffraction.
  • Infrared spectroscopy.

Main Results:

  • A porous three-component framework, 1⋅biphen⋅TP, was successfully prepared using tetra-amidinium (1^4+), terephthalate (TP^2-), and biphenyl-4,4'-dicarboxylate (biphen^2-).
  • The framework selectively formed in ethanol/water mixtures, irrespective of dicarboxylate excess.
  • In pure water, only two-component frameworks were observed, indicating solvent-directed assembly.

Conclusions:

  • Solvent composition plays a critical role in directing the self-assembly of multi-component hydrogen-bonded frameworks.
  • The use of mixed solvents like ethanol/water enables the formation of complex, ordered structures.
  • This study provides insights into controlling the architecture of porous materials through solvent engineering.