Abstract
A novel flexible one-dimensional coordination polymer [Cu(2)(3-OH-bza)(3)(AcO)(pyr)] (1, 3-OH-bza = 3-hydroxybenzoate, AcO = acetate, pyr = pyrimidine) was found to adsorb water at rates that are influenced by the nature of coexisting gases. Upon exposure to a flow of water vapor containing gas, 1 displays a H(2)O adsorption rate that is decelerated to a greater extent by CO(2) than by N(2). Key to this phenomenon is the observation that 1 undergoes a structural change upon reversible and selective adsorption of H(2)O. This finding serves as the basis of a new strategy for designing porous materials for highly efficient separation and storage applications.