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Updated: Jun 5, 2026
08:46
Preparation and Reactivity of a Triphosphenium Bromide Salt: A Convenient and Stable Source of Phosphorus(I)
Published on: November 22, 2016
1,1'-Binaphthalene-2,2'-diyl hydrogen phosphate
Acta Crystallographica. Section E, Structure Reports Online
|January 5, 2011
Summary
Racemic bnppa (C(20)H(13)O(4)P) crystallizes via hydrogen-bonded tetramers. These structures are further stabilized by hydrophobic interactions, including C-H⋯π and π-π stacking, dictating the crystal packing.
Area of Science:
- Crystal engineering
- Supramolecular chemistry
- Organic chemistry
Background:
- Understanding crystal packing is crucial for predicting material properties.
- Hydrogen bonding and π-π interactions are key non-covalent forces in crystal formation.
Purpose of the Study:
- To elucidate the crystal structure of racemic bnppa.
- To investigate the intermolecular interactions governing the crystal packing of bnppa.
Main Methods:
- Single-crystal X-ray diffraction analysis was employed.
- Analysis of hydrogen bonding (O-H⋯O) and hydrophobic interactions (C-H⋯π, π-π) was performed.
Main Results:
- Racemic bnppa crystallizes with four molecules in the asymmetric unit.
- Two independent centrosymmetric O-H⋯O hydrogen-bonded tetramers form the primary packing motif.
- Hydrophobic interactions, including C-H⋯π and π-π stacking, further stabilize the crystal structure.
Conclusions:
- The crystal structure of racemic bnppa is primarily determined by O-H⋯O hydrogen-bonded tetramers.
- Hydrophobic interactions play a significant role in stabilizing the overall crystal packing.
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