Generic Postfunctionalization Route from Amino-Derived Metal-Organic Frameworks

M. Null Savonnet , Delphine Bazer-Bachi , Nicolas Bats , J. Perez-Pellitero , E. Jeanneau , V. Lecocq , C. Pinel (1) , D. Farrusseng (1)

1 IRCELYON - Institut de recherches sur la catalyse et l'environnement de Lyon

This study deals with the development of a soft, generic, one-pot postfunctionalization method for metal-organic frameworks (MOFs) starting from compounds with an amino group on the linker. The first step consists of transforming the amino group into azide (N-3) by an unconventional route using tBuONO and TMSN3. In the same vessel, the desired functionalized MOF then is obtained by the Huisgen 1,3-dipolar cycloaddition of azides to alkynes, otherwise known as the "click" reaction. The method was applied to DMOF-NH2 and MIL-68(In)-NH2, which represent two distinct and important classes of MOF. For both, the functionalization was complete (>90% grafting) and the crystallinity was maintained. Thanks to the large diversity and availability of cyano- and acetylene-based chemicals, this method opens the door to tailor-made functionalized MOFs.

Domaines: Catalyse; Environnement et Société

M. Null Savonnet, Delphine Bazer-Bachi, Nicolas Bats, J. Perez-Pellitero, E. Jeanneau, et al.. Generic Postfunctionalization Route from Amino-Derived Metal-Organic Frameworks. Journal of the American Chemical Society, 2010, 132 (13), pp.4518-+. ⟨10.1021/ja909613e⟩. ⟨hal-00495155⟩