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Updated: Jun 1, 2026

Synthesis of High Purity Nonsymmetric Dialkylphosphinic Acid Extractants
Published on: October 19, 2017
4-(Diphenyl-phosphino-yl)benzoic acid.
Yuan-Jing Li1, Rong-Chang Zhang
1Faculty of Chemistry and Biology, Beihua University, Jilin City 132013, People's Republic of China.
This study reveals that molecules of C(19)H(15)O(3)P form chains through hydrogen bonds. These bonds connect carboxylic acid and phosphinoyl groups along the crystallographic b axis.
Area of Science:
- Crystallography
- Supramolecular Chemistry
- Organic Chemistry
Background:
- Understanding intermolecular interactions is crucial for materials science.
- Hydrogen bonding plays a key role in molecular self-assembly.
- The specific interactions in organophosphorus compounds are of interest.
Purpose of the Study:
- To investigate the crystal structure and intermolecular interactions of C(19)H(15)O(3)P.
- To elucidate the role of hydrogen bonding in the solid-state arrangement of this compound.
- To characterize the chain formation mechanism in the crystal lattice.
Main Methods:
- Single-crystal X-ray diffraction was employed to determine the molecular and crystal structure.
- Analysis of hydrogen bonding networks was performed.
- The crystallographic b axis was identified as the direction of chain propagation.
Main Results:
- Molecules of C(19)H(15)O(3)P were found to form extended chains.
- O-H⋯O hydrogen bonds were identified between the carboxylic acid OH group and the phosphinoyl O atom.
- These chains are oriented along the crystallographic b axis.
Conclusions:
- The crystal structure is stabilized by a specific hydrogen bonding motif.
- This hydrogen bonding dictates the one-dimensional chain assembly of the molecules.
- The findings contribute to the understanding of structure-property relationships in organophosphorus compounds.
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