A series of novel metal–organic
frameworks comprised of
Zn–O–Zn dinuclear units and multidentate pyridine-2,5-dicarboxylate
linkers were synthesized under mild conditions. The crystal structure
and composition of the novel phases were established from synchrotron
powder diffraction data. Small variations in the parameters of the
synthesis led to formation of the metal–organic systems of
different topologies, either 3D metal–organic frameworks (MOFs)
or a 0D molecular complex. The novel MOFs feature a permanent porosity.
The excess hydrogen uptake measured for the selected MOF sample was
about 0.9 wt % at 77 K and 1 bar. Structural examinations indicated
the phase transformation in several samples caused by the absorption
of the atmospheric water molecules. The thermal stability and guest-molecule
content in the pores of the novel MOFs were also characterized by
TGA-DSC.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.