Molecular Tectonics with Di- and Trinuclear Organotin Compounds

Area of Science:

• Supramolecular Chemistry
• Organometallic Chemistry
• Materials Science

Background:

• Di- and trinuclear organotin(IV) complexes with large aromatic connectors are key components in self-assembly.
• Traditional metallo-supramolecular assembly often relies on node-based strategies.

Purpose of the Study:

• To demonstrate the utility of di- and trinuclear organotin(IV) complexes as building blocks for self-assembly.
• To explore the formation of macrocyclic and cage-type structures using these complexes.
• To introduce molecular tectonics as an alternative assembly strategy.

Main Methods:

• Preparation of di- and trinuclear organotin(IV) complexes.
• Combination of these complexes with organic aromatic dicarboxylates.
• Utilizing organic binders to link metal atoms and varying reactive M-X sites.

Main Results:

• Successful preparation of [1+1], [2+2], and [2+3] macrocyclic and cage-type structures.
• Demonstration of molecular tectonics enabled by the versatile building blocks.
• Formation of structures through the linkage of metal atoms by organic binders.

Conclusions:

• Di- and trinuclear organotin(IV) complexes are effective building blocks for creating complex self-assembled structures.
• Molecular tectonics offers a flexible approach to supramolecular assembly, distinct from node-based methods.
• The design of these organotin(IV) complexes allows for tunable self-assembly pathways.