Hexamethylenetetramine-4-nitrocatechol-water (1/2/1)

Area of Science:

• Crystal Engineering
• Supramolecular Chemistry
• Materials Science

Background:

• Understanding intermolecular interactions is crucial for designing novel materials.
• Hydrogen bonding plays a significant role in the self-assembly of crystalline structures.
• The study focuses on a specific adduct involving hexamethylenetetramine, 4-nitrocatechol, and water.

Purpose of the Study:

• To elucidate the crystal structure of the 1,3,5,7-tetraazatricyclo[3.3.1.1(3,7)]decane-4-nitrobenzene-1,2-diol-water (1/2/1) adduct.
• To analyze the hydrogen bonding network within the crystal lattice.
• To understand the role of hexamethylenetetramine as a hydrogen bond acceptor.

Main Methods:

• Single-crystal X-ray diffraction was employed to determine the molecular and crystal structure.
• Analysis of intermolecular interactions, including hydrogen bonds (O-H.O, O-H.N, C-H.O), was performed.
• The study characterized the arrangement of molecules in layers and their interconnections.

Main Results:

• The crystal structure reveals hexamethylenetetramine acting as a hydrogen bond acceptor for water and 4-nitrocatechol.
• The adduct is organized into molecular layers stabilized by various hydrogen bonds.
• Specific hydrogen bond types and their counts (O-H.O, O-H.N, C-H.O) were identified and quantified.

Conclusions:

• The detailed structural analysis provides insights into the supramolecular assembly driven by hydrogen bonding.
• The findings contribute to the understanding of crystal engineering principles for adduct formation.
• This research highlights the versatility of hexamethylenetetramine in constructing complex hydrogen-bonded networks.