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Melaminium maleate monohydrate
Jan Janczak1, Genivaldo Julio Perpétuo
1Institute of Low Temperature and Structure Research, Polish Academy of Sciences, PO Box 1410, 50-950 Wrocław, Poland. janczak@int.pan.wroc.pl
Summary
This study investigates the crystal structure of melaminium maleate monohydrate, revealing a 3D framework formed by hydrogen bonds. The structure shows pi-pi interactions between melaminium residues and maleate anions.
Area of Science:
- Crystallography
- Supramolecular Chemistry
- Materials Science
Background:
- Melamine derivatives are important in materials science.
- Understanding hydrogen bonding is crucial for crystal engineering.
Purpose of the Study:
- To characterize the crystal structure of 2,4,6-triamino-1,3,5-triazin-1-ium maleate monohydrate.
- To investigate the hydrogen bonding interactions and pi-pi stacking in the compound.
Main Methods:
- Single-crystal X-ray diffraction.
- Comparison of experimental geometries with molecular-orbital calculations.
Main Results:
- The compound forms a three-dimensional framework structure via hydrogen bonds.
- Melaminium residues form chains with pi-pi interactions (3.26 Å spacing).
- Maleate anions and water molecules form zigzag chains with O-H...O hydrogen bonds (3.26 Å spacing).
Conclusions:
- The study elucidates the detailed supramolecular architecture of melaminium maleate monohydrate.
- Hydrogen bonding and pi-pi interactions play key roles in stabilizing the 3D framework.
- Computational analysis complements experimental findings on ion geometries.