A Novel Crystalline Organic-Inorganic Hybrid Material Having a Large Adsorption Capacity for Bulky Organic Molecules

摘要

A novel crystalline organic-inorganic hybrid material KCS-2 was successfully synthesized using an organically bridged silane. KCS-2 seems to have a large micropore opening (ca. 10 A) and a large adsorption capacity for benzene molecules. This material can be utilized as a host material that can stably incorporate functional organic molecules inside its micropores. Crystalline microporous materials such as zeolites have been extensively utilized as catalysts or adsorbents in order to use their large inner surface as reaction/adsorption fields. Moreover, their orderly arrayed microspace is an attractive host for the incorporation of various guest molecules in applications such as photonic or magnetic nanodevices. However, the availability of guest molecules is affected by the physicochem-ical properties of porous materials; molecular size is restricted by the pore size, and their stability is influenced by the affinity of the inner surface. In this regard, microporous materials having a hydrophobic inner surface and relatively large pore openings are advantageous for the stable incorporation of functional organic molecules.