<p>Three novel lanthanide metal˗organic frameworks (Ln-MOFs),
namely MOF-590, -591, and -592 were constructed from a naphthalene
diimide tetracarboxylic acid. Gas adsorption measurements of MOF-591 and
-592 revealed good adsorption of CO<sub>2</sub> (low pressure, at room
temperature) and moderate CO<sub>2</sub> selectivity over N<sub>2</sub> and
CH<sub>4</sub>. Accordingly, breakthrough measurements were performed on a
representative MOF-592, in which the separation of CO<sub>2</sub> from
binary mixture containing N<sub>2</sub> and CO<sub>2</sub> was
demonstrated without any loss in performance over three consecutive cycles.
Moreover, MOF-590, MOF-591, and MOF-592 exhibited catalytic activity in the
one-pot synthesis of styrene carbonate from styrene and CO<sub>2</sub> under
mild conditions (1 atm CO<sub>2</sub>, 80 °C, and solvent-free). Among the new
materials, MOF-590 revealed a remarkable efficiency with exceptional conversion
(96%), selectivity (95%), and yield (91%). </p><br>