“…Apart from fluorescence switching, the control of speed of photoswitching in the presence of light is also a basic requirement to get a highly efficient photoswitch. 22 In this regard, conjugated way of attachment generally restricts the photoswitching speed, 23 whereas nonconjugated combination between the cNDI, DTE, and ferrocene units may impart high-speed switching between the two isomeric states with good photoisomerization quantum yields. 24 Herein, we have developed a Fc-DTE-cNDI triad, with unique multifunctional switching capability using photochromic and redox tunable properties.…”