Volume 85 Issue 22 | pp. 32-33
Issue Date: May 28, 2007

Porous Crystalline Organic Frameworks

Designed syntheses lead to covalent 3-D materials with potential uses in gas storage and separation
Department: Science & Technology

THE RECIPE is exceedingly simple: Add one or two organic building blocks to a solvent mixture, heat at 85 °C inside a sealed tube for several days, and—voilà—you have created a new class of crystalline materials with remarkable properties.

The new materials are three-dimensional covalent organic frameworks (COFs)—that is, porous networks constructed entirely of strong covalent bonds between light elements such as carbon, boron, and oxygen. They are stable to temperatures above 450 °C, and . . .

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