Metal-organic frameworks (MOF) have emerged as promising materials for separations, gas storage, catalysis, and chemical sensing. One class of widely-studied MOF are the isoreticular metal-organic frameworks (IRMOF), discovered by Yaghi et al. Several large-pore IRMOFs were synthesized by the solvothermal method. Two solvent removal procedures were compared, i.e., the original method involving chloroform exchange suggested by Yaghi and a newly developed procedure. The adsorption properties of light gases, e.g., H2 and CO2, on IRMOF was examined. Grand canonical Monte Carlo simulations of light gases, with and without co-adsorbed solvent molecules, were used to help understand and interpret the experimental results. This is an abstract of a paper presented at the 2007 AIChE Annual Meeting (Salt Lake City, UT 11/4-9/2007).