Porous coordination polymer synthesized from a polydentate 8-hydroxyquinoline ligand via interface reaction.

[Display omitted] • A polydentate 8-hydroxyquinoline ligand with a sym -triazine core. • Porous coordination polymer is synthesized via solid–liquid interface reaction. • The strongly polar triazine cores induce interchain excited states. A polydentate 8-hydroxyquinoline ligand with a triazine core has been synthesized via aryl nitrile trimerization, which chelates Zn2+ ions at ice surface to form porous coordination polymer via interface reaction. The porous coordination polymer in organic solvent shows a photoluminescence (PL) spectrum with a peak at 610 nm, while a red-shifted PL peak at 675 nm and a new PL shoulder peak at 770 nm appear in the PL spectrum of the porous coordination polymer film. The 770 nm emssion is inferred from the interchain excited state due to the strong interchain interaction caused by the polar triazine core. [ABSTRACT FROM AUTHOR]