A naphthelene diimide (NDI) derivative of donor–acepter–donor (D–A–D) molecular structure follows a isodesmic mode of self-assembly and shows “turn-on” fluorescence sensing of hydrazine.
This work highlights the utility of π–π stacked self-assembly for enhanced survival time of charge transfer intermediates upon photoexcitation of donor–acceptor systems.
Using the “crystal sponge” approach, weak organic electron donor molecules were impregnated and evenly distributed in a crystal of a metal–organic framework (MOF), with the self-assembly of the donor–acceptor pairs with electron acceptor ligands. The nanopores of the MOF confined them and induced a charge transfer phenomenon, which would not occur between donor and acceptor molecules in a bulk scale.
Radical anion formation exhibiting “turn-on” fluorescence sensing of hydrazine using a naphthalene diimide (NDI) derivative with a donor–acceptor–donor (D–A–D) molecular structure