Metal-organic microstructures: from rectangular to stellated and interpenetrating polyhedra.

Area of Science:

• Materials Science
• Supramolecular Chemistry
• Crystallography

Background:

• Achieving uniform size and shape in supramolecular and inorganic materials remains a significant challenge.
• Metal-organic frameworks (MOFs) and infinite coordination polymers offer promising properties but lack morphological control.

Purpose of the Study:

• To report the solvothermal synthesis of diverse, uniform metal-organic (sub)-microstructures.
• To demonstrate a bottom-up approach for controlled assembly of these materials.

Main Methods:

• Solvothermal synthesis utilizing tetrahedral polypyridyl ligands and nickel or copper ions.
• Direct assembly without the use of surfactants or modulators.
• Control over reaction parameters and molecular structure encoding.

Main Results:

• Successfully synthesized diverse, highly uniform metal-organic (sub)-microstructures.
• Obtained porous, thermally robust, monodisperse crystalline solids.
• Demonstrated precise control over size and shape through reaction parameters and molecular design.

Conclusions:

• Reaction parameters and molecular structure encoding are key to achieving size-shape control and uniformity in metal-organic materials.
• The developed bottom-up approach enables the direct assembly of uniform MOF-like materials without additives.