Triazine-Based Highly Stable AADD-Type Self-Complementary Quadruple Hydrogen-Bonded Systems Devoid of Prototropy

Area of Science:

• Supramolecular Chemistry
• Organic Chemistry

Background:

• Quadruple hydrogen-bonded systems are crucial for constructing ordered supramolecular architectures.
• 1,3,5-triazine derivatives offer versatile platforms for designing self-assembling molecules.

Purpose of the Study:

• To develop and characterize a new class of 1,3,5-triazine-based quadruple hydrogen-bonded systems.
• To investigate the stability and self-assembly behavior of these systems in non-polar solvents.

Main Methods:

• Synthesis of novel 1,3,5-triazine derivatives with AADD-type hydrogen bonding motifs.
• Characterization using spectroscopic techniques (e.g., NMR).
• Determination of dimerization constants (Kdim) in chloroform (CDCl3) to quantify stability.

Main Results:

• Successful development of 1,3,5-triazine-based systems capable of forming quadruple hydrogen bonds.
• Formation of highly stable molecular duplexes with dimerization constants exceeding 1.9×10^7 m^-1 in CDCl3.
• Absence of prototropy-related issues, ensuring structural integrity of the duplexes.

Conclusions:

• The novel 1,3,5-triazine system provides a robust platform for supramolecular assembly.
• The high stability and lack of prototropy make it suitable for advanced applications.
• Significant potential for use in supramolecular polymer science and materials development.