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Related Experiment Videos

Melaminium phthalate.

J Janczak1, G J Perpétuo

  • 1W. Trzebiatowski Institute of Low Temperatures and Structures Research, Polish Academy of Sciences, PO Box 1410, 50-950 Wroclaw, Poland. janczak@int.pan.wroc.pl

Acta Crystallographica. Section C, Crystal Structure Communications
|February 15, 2001
PubMed
Summary

This study characterizes a new melaminium salt, 2,4,6-triamino-1,3,5-triazin-1-ium hydrogenphthalate. Its crystal structure reveals a 3D network formed by ionic and hydrogen bonds between melaminium and hydrogenphthalate components.

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Acta crystallographica. Section C, Crystal structure communications·2001

Area of Science:

  • Crystallography
  • Supramolecular Chemistry
  • Materials Science

Background:

  • Melaminium salts are of interest due to their potential applications in materials science.
  • Understanding the crystal structure of novel salts provides insights into intermolecular interactions.
  • Hydrogenphthalate anions are versatile components in crystal engineering.

Purpose of the Study:

  • To synthesize and characterize a new melaminium salt: 2,4,6-triamino-1,3,5-triazin-1-ium hydrogenphthalate.
  • To elucidate the crystal structure and intermolecular bonding of this new compound.
  • To investigate the spatial arrangement of melaminium cations and hydrogenphthalate anions.

Main Methods:

  • Single-crystal X-ray diffraction was employed to determine the crystal structure.

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  • Analysis of bond lengths, bond angles, and torsion angles.
  • Identification and characterization of hydrogen bonding networks and ionic interactions.

    • Main Results:

    • The crystal structure consists of protonated melaminium cations (C3H7N6+) and hydrogenphthalate anions (C8H5O4-).
    • The melaminium ring is nearly planar.
    • The hydrogenphthalate anion exhibits distinct orientations of its carboxyl and carboxylate groups relative to the aromatic ring, with specific dihedral angles observed.
    • A three-dimensional network is formed through ionic interactions and donor-acceptor hydrogen bonds.

    Conclusions:

    • The new melaminium salt forms an intricate 3D supramolecular network.
    • The observed crystal packing is governed by a combination of electrostatic forces and hydrogen bonding.
    • The structural features suggest potential for this material in areas requiring ordered molecular assemblies.