1,1,4,7,7-Penta-methyl-diethylenetri-ammonium trinitrate.

Area of Science:

• Crystallography
• Supramolecular Chemistry
• Organic Chemistry

Background:

• Diethylenetriamine derivatives are important in coordination chemistry.
• Understanding hydrogen bonding is crucial for crystal engineering.

Purpose of the Study:

• To characterize the crystal structure of triprotonated 1,1,4,7,7-penta-methyl-diethylenetriamine nitrate.
• To investigate the hydrogen bonding network within the crystal.

Main Methods:

• Single-crystal X-ray diffraction was employed.
• Analysis of intermolecular interactions, including hydrogen bonds and torsion angles.

Main Results:

• The crystal structure consists of triprotonated 1,1,4,7,7-penta-methyl-diethylenetriamine cations and nitrate anions.
• Multiple bifurcated N-H⋯(O,O) and weak C-H⋯O hydrogen bonds were observed, linking the cation and anions.
• Specific N-C-C-N torsion angles of -176.2(2)° and 176.6(2)° were determined for the organic cation.

Conclusions:

• The study elucidates the detailed supramolecular assembly driven by hydrogen bonding in this system.
• The findings contribute to the understanding of protonated polyamine structures and their interactions with anions.