Hydrogen bis-[2-(4-ammonio-phen-oxy)acetate] triiodide.

Area of Science:

• Crystal Engineering
• Supramolecular Chemistry
• Coordination Chemistry

Background:

• Understanding intermolecular interactions is crucial for designing novel materials.
• Carboxylate groups and halide anions are common motifs in crystal structures.
• Hydrogen bonding plays a significant role in stabilizing crystal lattices.

Purpose of the Study:

• To characterize the crystal structure of a novel compound containing (4-amino-phenoxy) acetate ligands and a triiodide anion.
• To investigate the hydrogen bonding network and intermolecular interactions within the crystal.

Main Methods:

• Single-crystal X-ray diffraction analysis was performed.
• The crystal structure was solved and refined.
• Hydrogen bonding interactions were analyzed.

Main Results:

• The crystal structure of C(16)H(19)N(2)O(6) (+)·I(3) (-) was determined.
• A pair of (4-amino-phenoxy) acetate ligands exhibited classical carboxylate bridging mediated by a hydrogen atom located on an inversion center.
• The triiodide anion was also situated on an inversion center.
• A three-dimensional network was constructed through N-H⋯O and N-H⋯I hydrogen bonds.

Conclusions:

• The study elucidates the intricate hydrogen bonding network in the title compound.
• The findings contribute to the understanding of carboxylate bridging and anion interactions in crystal engineering.
• The observed network highlights the importance of hydrogen bonds in supramolecular assembly.