Chemistry Reference
In-Depth Information
Fig. 5.5 a
Direct synthetic routes for Ir- and Rh-containing MO-CMPs produced from cyclo-
metalated Ir and Rh complexes, respectively;
b
MO-CMPs produced from Cp*-containing Ir
monomer.
i
[Pd(PPh
3
)
4
], CuI, DMF, and Et
3
N, 90 °C, 72 h. Reprinted with permission from Ref.
[
4
]. Copyright 2011, Wiley-VCH
here [Mn(bpy)
2
]
2
+
, was immobilized using a “ship-in-the bottle” approach
(Fig.
5.9
). The resulting network is a promising catalyst for the aerobic oxidation
of alkenes.
Nguyen and co-workers reported that an Al(porphyrin) functionalized with a large
axial ligand was incorporated into a porous organic polymer using a cobalt-catalyzed
acetylene trimerization strategy (Fig.
5.10
) [
8
]. The presence of a large axial ligand
on the Al(porphyrin) monomer can afford Al-PPOPs with larger pores that were
more accessible to substrates in catalysis (Fig.
5.11
), the best catalysts were obtained
after supercritical CO
2
processing. In contrast to the conventional activation method
of heating the samples under vacuum, supercritical CO
2
processing afforded POPs
with much larger pores and total pore volumes, thus significantly enhancing substrate
accessibility and catalytic rates.
