The construction of two-dimensional (2D) porous patterns on solid surfaces using molecular self-assembly has become a subject of great interest because of perspectives in unique applications. Surface confined pores within the 2D porous molecular networks can be used as host space to immobilize guest molecules at the surface. One of the significant challenges in the design of 2D porous system is physical or chemical modification of the interior space of porous networks to construct tailored functional pores. We previously reported that dehydrobenzo[12]annulene (DBA) derivatives formed porous honeycomb structures at the liquid/solid interfaces by van der Waals interactions between interdigitated alkyl chains with adjacent molecules. On the basis of the modification of the alkyl chains attached to DBAs, we herein report the construction of tailored 2D pores, that exhibit an unique recognition toward a guest molecule and the reversible change of the pore size by external stimuli.

Tailoring surface-confined nanopores within 2D porous molecular networks

247th National Meeting (2014)

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