Robust Molecular Bowl-Based Metal–Organic Frameworks with Open Metal Sites: Size Modulation To Increase the Catalytic Activity

Herein,
two stable lead­(II) molecular-bowl-based metal–organic frameworks
and their micro- and nanosized forms with open metal sites were presented.
These materials could act as Lewis acid catalysts to cyanosilylation
reaction. Moreover, the catalytic performances are size-dependent,
with the catalyst with nanosized form being 1 order of magnitude more
efficient than those with micro- and millisized forms.