Temperature dependent CO2 behavior in microporous 1-D channels of a metal-organic framework

Abstract

The observation of encapsulated carbon dioxide (CO2) molecule is one of the important issues to understanding about those activation environment for utilization of CO2 molecules. Metal-organic frameworks (MOF) are crystalline and porous materials, thus some of MOF structures could be applied to container or cage for gas capture and separation. Here we synthesized new Cu-MOF, [Cu3Cl2(tetrazole)4], which has microporous 1-D channels structure with neck-like portal window of ~2.5 Å in diameter. The encapsulated CO2 molecules in this MOF structure with pressurized CO2 are analyzed by single crystal Xray diffraction (SCXRD). The CO2@Cu-MOF were showed different multiple interaction between MOF structures and CO2 molecules depended on temperature. In this presentation, we will discuss observed structures and temperature dependent CO2 uptakes as gas sorption experiment.