In comparison to oxide-based inorganic materials, the sol-gel chemistry of coordination compounds has been relatively unexplored.  Here, we show that the new sodalite-type metal-organic framework Ni3[(Ni4Cl)3(BTT)8](Ni-BTT; H3BTT = 1,3,5-benzenetristetrazolate) exhibits unique gellation behavior upon mixing of its components at room temperature.  Upon heating to relatively mild temperatures of below 150 �C, the gel crystallizes to form a porous metal-organic framework of potential interest for hydrogen storage.  The formation of an intermediate gel phase is in contrast to the typical precipitation behavior observed in the solvothermal synthesis of metal-organic frameworks.  In addition, the processingof Ni-BTT films and monoliths will be discussed.

Sol-gel chemistry of the Ni-BTT metal-organic framework

239th National Meeting (2010)

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