Most nanoporous materials with molecular-scale pores are extended frameworks composed of directional covalent or coordination bonding, such as porous metal-organic frameworks and organic network polymers. By contrast, nanoporous materials comprised of discrete organic molecules, between which there are only weak non-covalent interactions, are seldom encountered. Indeed, most organic molecules pack efficiently in the solid state to minimize the void volume, leading to non-porous materials. In recent years, a significant number of nanoporous organic molecular materials, which may be either crystalline or amorphous, have been discovered by us and other groups. These materials can be assembled from cheap, robust, and readily available organic molecular building blocks and show great promise for CO2 capture and storage applications. Two main strategies to prepare porous organic molecular solids, including crystal engineering approaches and molecular engineering of porous amorphous solids, will be addressed. In addition, the possible advantages of porous organic molecular materials over porous networks are discussed.

Porous organic molecular materials for CO<sub>2</sub> capture applications

243rd National Meeting (2012)

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Porous organic molecular materials for CO2 capture applications

Porous organic molecular materials for CO₂ capture applications