Science · Nature, 1999

A porous framework that holds its shape

A framework that stays crystalline and porous once its guest molecules are removed.

MOF-5, shown in idealized geometry. Drag to rotate.

The question

Could a framework assembled from molecular building blocks stay crystalline and porous once its guest molecules were removed?

What was done

The authors designed and synthesized a MOF from metal-containing clusters and rigid organic linkers, and showed that it kept its ordered, open structure when emptied.

What the paper reports

The paper reports the synthesis, the crystal structure and the stability of the framework.

What remains open

Stability in a laboratory vacuum is not stability in a process stream. Water, heat and chemical resistance remain central questions for every later generation of frameworks.

Paper
Li, H.; Eddaoudi, M.; O’Keeffe, M.; Yaghi, O. M. Design and synthesis of an exceptionally stable and highly porous metal-organic framework. Nature 402, 276–279 (1999).
Credited
Hailian Li, Mohamed Eddaoudi, Michael O’Keeffe and Omar M. Yaghi.
Link
doi.org/10.1038/46248