Tetra­butyl­ammonium 4-hy­droxy­benzoate dihydrate
2011

Crystal Structure of Tetra­butyl­ammonium 4-hy­droxy­benzoate Dihydrate

publication

Author Information

Author(s): Yang Yuan, Yang Yunxia

Primary Institution: Guizhou Normal University

Conclusion

The study presents the crystal structure of tetra­butyl­ammonium 4-hy­droxy­benzoate dihydrate, highlighting the role of water molecules in the structure's stability.

Supporting Evidence

  • The carboxyl group of the p-hydroxybenzoate anion is slightly twisted with respect to the phenyl ring.
  • The structure features wide hydrogen-bonded ribbons formed by interactions between the anion and water molecules.
  • Tetra­butyl­ammonium cations create unclosed diamond-like channels that contain the hydrogen-bonded ribbons.

Takeaway

This study shows how a specific chemical compound forms a stable structure with the help of water molecules.

Methodology

The compound was synthesized by dissolving p-hydroxybenzoic acid in a water-ethanol mixture and adding tetrabutylammonium hydroxide, leading to the formation of colorless block crystals.

Digital Object Identifier (DOI)

10.1107/S1600536811022823

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