Bis(2-hy-droxy-eth-yl)ammonium picrate

Area of Science:

• Crystallography
• Supramolecular Chemistry
• Chemical Physics

Background:

• The study focuses on the crystal structure of bis-(2-hydroxy-ethyl)ammonium picrate.
• Understanding the hydrogen bonding network is crucial for predicting material properties.

Purpose of the Study:

• To elucidate the crystal structure of the title salt.
• To identify and analyze the hydrogen bonding interactions within the crystal lattice.
• To describe the formation of the three-dimensional structure.

Main Methods:

• Single-crystal X-ray diffraction was used to determine the crystal structure.
• Analysis of intermolecular interactions, including hydrogen bonds (N-H⋯O, O-H⋯O, C-H⋯O).
• Identification of graph-set ring motifs (R 2 (1)(6), R 2 (2)(10), R 2 (2)(13)).

Main Results:

• The asymmetric unit contains two bis-(2-hydroxy-ethyl)ammonium cations and two picrate anions.
• Intramolecular N-H⋯O hydrogen bonds were observed within each cation.
• Extensive intermolecular O-H⋯O and N-H⋯O hydrogen bonds link molecules, forming specific ring motifs and a 3D network.

Conclusions:

• The crystal structure of bis-(2-hydroxy-ethyl)ammonium picrate is characterized by a robust network of hydrogen bonds.
• The identified hydrogen bonding patterns and graph-set motifs contribute to the overall stability and three-dimensional architecture of the crystal.
• This detailed structural analysis provides insights into the supramolecular assembly of organic salts.