Melaminium acetate acetic acid solvate monohydrate

Area of Science:

• Crystal Engineering
• Supramolecular Chemistry
• Materials Science

Background:

• Melaminium salts are of interest due to their potential applications in materials science.
• Understanding the hydrogen bonding networks in crystalline structures is crucial for predicting material properties.

Purpose of the Study:

• To characterize the crystal structure of a novel melaminium salt, 2,4,6-triamino-1,3,5-triazin-1-ium acetate acetic acid solvate monohydrate.
• To elucidate the intermolecular interactions, particularly hydrogen bonding, that govern the crystal packing.

Main Methods:

• Single-crystal X-ray diffraction was employed to determine the three-dimensional crystal structure.
• Analysis of hydrogen bonding networks (N-H...N and N-H...O) was performed to understand the structural assembly.

Main Results:

• The crystal structure consists of singly protonated melaminium cations, acetate anions, acetic acid molecules, and water molecules.
• Melaminium residues form chains along the [010] direction via N-H...N hydrogen bonds, which stack along the a axis.
• Acetic acid and water molecules form layers parallel to the (001) plane through interactions with acetate anions, stabilized by N-H...O hydrogen bonds.

Conclusions:

• The novel melaminium salt exhibits a pseudo-two-dimensional stacking structure stabilized by extensive hydrogen bonding.
• The specific arrangement of components highlights the role of hydrogen bonding in directing crystal formation and stability.