4-Meth-oxy-anilinium hexa-fluoro-phosphate monohydrate
1Ordered Matter Science Research Center, Southeast University, Nanjing 210096, People's Republic of China.
Summary
This study reveals the crystal structure of a protonated 4-methoxy-anilinium compound. Water molecules bridge cations and anions through hydrogen bonds, forming zigzag chains in the crystal packing.
Area of Science:
- Crystallography
- Supramolecular Chemistry
- Materials Science
Background:
- Understanding the self-assembly of organic salts is crucial for designing new materials.
- Hydrogen bonding and other non-covalent interactions play a key role in crystal engineering.
Purpose of the Study:
- To elucidate the crystal structure of protonated 4-methoxy-anilinium hexafluorophosphate monohydrate.
- To investigate the role of water molecules in the supramolecular assembly of the title compound.
Main Methods:
- Single-crystal X-ray diffraction analysis was employed to determine the crystal structure.
- Hydrogen bond analysis was performed to identify and characterize intermolecular interactions.
Main Results:
- The crystal structure consists of protonated 4-methoxy-anilinium cations, hexafluorophosphate anions, and water molecules.
- Water molecules act as linkers, forming N-H⋯O and O-H⋯F hydrogen bonds between cations and anions.
- These interactions lead to the formation of zigzag chains extending along the c-axis.
- C-H⋯π interactions were also observed, contributing to the overall crystal packing.
Conclusions:
- The study provides detailed insights into the supramolecular architecture of protonated 4-methoxy-anilinium hexafluorophosphate monohydrate.
- The findings highlight the significant role of hydrogen bonding and water molecules in directing crystal structure formation.
- This work contributes to the understanding of crystal engineering principles for organic salts.


