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Microporous organic polymers (MOPs) can be defined as materials with pore sizes smaller on average than 2 nm which are comprised
of light, non-metallic elements such as C, H, O, N, and B. We describe here the main classes of MOPs which are conveniently
sub-divided into amorphous and crystalline groups. We present an overview of the synthesis of these materials, along with
some general design criteria for producing MOPs with high surface areas and micropore volumes. The advantages and disadvantages
of MOPs with respect to inorganic materials such as zeolites and hybrid materials such as metal organic frameworks are discussed
throughout, particularly in terms of practical applications such as catalysis, separations, and gas storage. We also discuss
future opportunities in this area as well as the potential to unearth “undiscovered” MOPs among the large number of rigid
backbone polymers and networks reported in the literature.

In the light of growing demand for chiral purity in biological and chemical processes, the synthesis of chiral metal-organic
porous materials (CMOPMs) have become immensely important because of their potential applications in chiral separation and
asymmetric catalysis. In this chapter, the synthetic strategies for CMOPMs are discussed briefly keeping the focus on their
applications. Two distinct approaches have been taken to synthesize a wide variety of chiral structures with different topologies
and accessible cavities. Several CMOPMs have shown catalytic activity and enantioselectivity toward a number of chemical transformations.
On many occasions, the chiral pores of the MOPMs have been utilized in order to achieve separation of enantiomers from racemates.
Recent applications of homochiral MOPMs in heterogeneous, asymmetric catalysis and chiral separations are also presented here.

Porous Coordination Polymers (PCPs) composed of transition metal ions and bridging organic ligands have been extensively studied.
The characteristic features of PCPs are highly regular channel structures, controllable channel sizes approximating molecular
dimensions, designable surface potentials and functionality, and flexible frameworks responsive to guest molecules. Owing
to these advantages, successful applications of PCPs range from molecular storage and separation to heterogeneous catalysts.
In particular, use of their regulated and tunable nanochannels in the field of polymerization has allowed multi-level control
of polymerization via control of stereoregularlity, molecular weight, etc. In this chapter, we focus on recent progress in
polymerization utilizing the nanochannels of PCPs, and demonstrate why this polymerization system is attractive and promising
from the viewpoint of precision control of polymeric structures.