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Updated: Jul 16, 2026

Qualitative Identification of Carboxylic Acids, Boronic Acids, and Amines Using Cruciform Fluorophores
Published on: August 19, 2013
2,3-Difluoro-4-formylphenylboronic acid
Tomasz Klis1, Sergiusz Lulinski, Janusz Serwatowski
1Warsaw University of Technology, Faculty of Chemistry, Noakowskiego 3, 00-664 Warsaw, Poland. ktom@ch.pw.edu.pl
This study details the crystal structure of a novel fluorinated boronic acid derivative. It reveals unique molecular arrangements including hydrogen bonding and B-F interactions, forming layered structures.
Area of Science:
- Crystallography
- Organic Chemistry
- Materials Science
Background:
- Understanding the structure-property relationships of organic molecules is crucial for designing new materials.
- Boronic acids are versatile compounds with applications in synthesis and materials science.
- Fluorinated organic compounds often exhibit unique electronic and structural properties.
Purpose of the Study:
- To elucidate the crystal structure of 2,3-difluoro-4-formylphenylboronic acid.
- To investigate the intermolecular interactions governing the solid-state organization of the title compound.
- To characterize the influence of fluorine and formyl substituents on the molecular conformation and packing.
Main Methods:
- Single-crystal X-ray diffraction was employed to determine the molecular and crystal structure.
- Analysis of hydrogen bonding and other non-covalent interactions was performed.
- Computational methods may be used to further analyze electronic properties and interactions (if applicable, otherwise omit).
Main Results:
- The formyl group is coplanar with the benzene ring, while the boronic acid group is twisted.
- Molecules form infinite chains through intermolecular O-H...O hydrogen bonds.
- These chains assemble into folded layers connected by hydrogen bonds, with layers further paired via B...F interactions.
Conclusions:
- The crystal structure reveals a complex network of hydrogen bonding and B-F interactions.
- The observed packing arrangement leads to a unique folded layer structure.
- This study provides insights into the supramolecular assembly of fluorinated boronic acids.
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