Issue Date: May 28, 2007
Porous Crystalline Organic Frameworks
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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