Doubly Interpenetrated Chiral (10,3)‑a Network with Charge-Transfer-Type Guest Inclusion

A doubly interpenetrated metal–organic framework, [Zn3(TATB)2(H2O)2]n (2), with chiral (10,3)-a topology, has been synthesized from an achiral, trigonal-planar ligand, 4,4′,4″-s-triazine-2,4,6-triyltribenzoate (TATB). The large chiral channels in 2 act as scaffolds for the inclusion of N,N-dimethylaniline (DMA) molecules by donor–acceptor interactions. The resulting host–guest composite, DMA@2, shows desirably intense luminescence, which originated from photoinduced charge-transfer interactions in excited states.