Thermally activated delayed fluorescent phenothiazine–dibenzo[a,j]phenazine–phenothiazine triads exhibiting tricolor-changing mechanochromic luminescence† †Electronic supplementary information (ESI) available: Synthetic procedures, spectroscopic data, copies of NMR charts, physicochemical properties, and device fabrication and performances. CCDC 1452024. For ESI and crystallographic data in CIF or other electronic format see DOI: 10.1039/c6sc04863c Click here for additional data file. Click here for additional data file.

Thermally Activated Delayed Fluorescent Phenothiazine-Dibenzo[a,j]phenazine-Phenothiazine Triads Exhibiting Tricolor-Changing Mechanochromic Luminescence Masato Okazaki, Youhei Takeda,* Przemyslaw Data,* Piotr Pander, ‡,§ Heather Higginbotham, Andrew P. Monkman, and Satoshi Minakata* Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Yamadaoka 2-1, Suita, Osaka 565-0871, Japan Physics Department, Durham University, South Road, Durham DH1 3LE, United Kingdom Faculty of Chemistry, Silesian University of Technology, M. Strzody 9, 44-100 Gliwice, Poland