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Published on: January 8, 2016
Ammonium bis(tetraethylammonium) hexacyanidoferrate(III) trihydrate
Miroslava Matiková Malarová1, Juraj Cernák, Werner Massa
1Department of Inorganic Chemistry, Institute of Chemistry, P. J. Safárik University, Moyzesova 11, 041 54 Kosice, Slovakia.
Summary
This study details the crystal structure of a salt containing ammonium, tetraethylammonium, and iron cyanide. It reveals unique hydrogen-bonding arrangements and the formation of hydrophilic and hydrophobic regions within the crystal lattice.
Area of Science:
- Crystal chemistry
- Supramolecular chemistry
- Coordination chemistry
Background:
- Understanding the self-assembly of inorganic-organic hybrid materials is crucial.
- Crystal structure analysis provides fundamental insights into molecular interactions and material properties.
Purpose of the Study:
- To elucidate the detailed crystal structure of the title salt, (NH4)(C8H20N)2[Fe(CN)6].3H2O.
- To investigate the hydrogen bonding network and the arrangement of hydrophilic and hydrophobic components.
Main Methods:
- Single-crystal X-ray diffraction was employed to determine the crystal structure.
- Analysis of atomic positions, bond lengths, and intermolecular interactions.
Main Results:
- The crystal structure exhibits a unique disorder where oxygen from water shares a site with an ammonium nitrogen.
- Water molecules and ammonium cations form tetrameric hydrogen-bonded units.
- Tetraethylammonium cations occupy cube-like cavities within the hydrophilic framework.
Conclusions:
- The study reveals intricate hydrogen bonding and cation-anion interactions in the title salt.
- The observed structural features contribute to the formation of distinct hydrophilic and hydrophobic domains.
- This detailed structural information is vital for designing novel functional materials.
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