Supramolecular Weaving by Halogen-Bonding in Functionality-Rich Hexasubstituted Aromatic Synthons.

Area of Science:

• Organic Chemistry
• Materials Science
• Crystallography

Background:

• Hexasubstituted benzenes are valuable building blocks for functional materials.
• Traditional synthesis methods for these compounds are often complex and lack control over substitution patterns.

Purpose of the Study:

• To develop a novel and straightforward synthetic route to C3-symmetrical hexasubstituted aromatic synthons.
• To investigate the crystal packing modes and intermolecular interactions of these novel compounds.

Main Methods:

• A new synthetic strategy for hexasubstituted benzenes.
• Single-crystal X-ray diffraction analysis to determine molecular and crystal structures.
• Analysis of intermolecular interactions, particularly halogen bonding.

Main Results:

• A facile synthesis of C3-symmetrical hexasubstituted aromatic synthons with diverse functionalities was achieved.
• Unprecedented bidimensional supramolecular weaving was observed in the crystal structures.
• Strong and directional halogen bonding interactions were identified as the driving force for the observed supramolecular architecture.

Conclusions:

• The developed method provides access to a new class of hexasubstituted benzenes.
• The findings highlight the significant role of halogen bonding in directing crystal packing and forming extended supramolecular structures.
• These results open new avenues for designing functional materials with tailored properties.