NOVELTY - Metal organic framework comprises a metal ion (M) and an organic ligand (I), where more than one hydroxy ligand is present about the metal ion.    USE - The metal organic framework is useful for scrubbing exhaust gas streams of acidic gases, scrubbing natural gas of acidic gases by separation or sequestration, and separating C2Hn or other volatile organic compounds (VOC) gases from other gases (claimed).    ADVANTAGE - The metal organic frame work has high capacity to store carbon dioxide than other classes of porous materials including commercial materials such as zeolite 13X and activated carbon. The surface areas and pore volume of the frame work can be adjusted via appropriate crystal engineering and topological connections in order to maximize the carbon dioxide adsorption capacity. The pore surface and environment can be fine controlled and tuned via variation of organic and inorganic components that constitute the framework in order to enhance carbon dioxide capacity and selectivity. The adsorbed carbon dioxide molecules can be readily released via reduction of the pressure i.e. the capture system can be regenerated without additional heating input. The extended crystalline structure of metal organic frame work materials gives a unique opportunity to determine and study the mechanisms of carbon capture and storage (CCS) using advanced diffraction techniques.    DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for:    (1) producing a metal-organic framework comprising (1) providing a metal salt, (2) providing an organic ligand, (3) mixing the metal salt and the organic ligand and (4) reacting the metal salt with organic ligand to form a metal-organic framework, where the metal salt is a metal (III) salt and the organic ligand is a polycarboxylic acid;    (2) use of a metal organic framework incorporating metal hydroxy units to capture one or more of XO2, or a C2Hn by the formation of a weak electrostatic interactions between the XO2 or C2Hn molecule and the MOF; and    (3) a gas storage system comprising an inlet for receiving gas containing (XO2), and/or (C2Hn), a container for receiving the gas from the inlet and a storage material comprising the metal organic framework.    X = C, S, or N; and    n = 2, 4, 6.