The ever-growing demand for fluorogenic dyes usable in the rapid construction of analyte-responsive fluorescent probes, has recently contributed to a revival interest chemistry diketopyrrolopyrrole (DPP) pigments. In this context, we have explored potential symmetrical and unsymmetrical DPP derivatives bearing two or one 4-pyridyl substituents acting as optically tunable group(s). unique behavi...

A simple synthesis of highly planar extended π-electron molecules is particular interest for the development efficient nonfullerene acceptors in organic solar cells with high light absorption and mobility. Herein, two small-molecule (MPU7 MPU8) a diketopyrrolopyrrole core connected to CPTCN end-capping groups (A2) via thienylethynylselenophene (MPU7) or thienylethynylthiophene (MPU8) linkers ar...

Conformational heterogeneity leads to different excited state relaxation pathways in flexibly-linked DPP-dimers.