Abstract:
Apart from simple metal connectors and metalloligand, in situ generated metaloxygen
clusters, also known as secondary building unit (SBU) can direct the final
structure.10a Depending upon the reaction conditions, ligand functionality and metal ion,
various kind of SBUs can be obtained. Paddle-wheel, Zn4(O)(COO)6, ?-oxo-bridged and
trinuclear SBUs are most common among several SBUs reported so far in PCPs.10b Figure
3 shows all such possible inorganic SBUs that are reported till date in MOFs.
Figure