Provided is a method for adsorbing or separating carbon dioxide from a mixture of gases by passing the gas mixture through a porous three-dimensional polymeric coordination compound having a plurality of layers of two-dimensional arrays of repeating structural units, which results in a lower carbon dioxide content in the gas mixture. Thus, this invention provides useful compositions and methods for removal of greenhouse gases, in particular CO.sub.2, from industrial flue gases or from the atmosphere.
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH
The invention was made with government support under Contract No. DE-FG02-08ER46491, awarded by the Department of Energy. The U.S. government has certain rights to this invention.