“…[14][15][16] On the other hand, tetrathiafulvalene (TTF) is easily oxidized to the radical-cation and dication species throught wo one-electron processes sequentially and reversibly. [17] This affords TTF as versatile building units in donor-acceptor systems to provide different chemophysical applications,i ncluding molecular switches, linear or nonlinear optics, electrical conductors, ands oo n. [18][19][20][21][22][23] Therefore, TTF can be ag ood candidate in participating and tuningt he electro-and photo-properties of confined hostguest systemsb ased on MOCs, althoughr elateds tudies remain scarce. [24,25] Especially,c onsidering the different oxidation states of TTF that are easily available by chemical, electrochemicalo rp hotochemical methods, an advanced PL responsive system with multi-step emission tuning abilities can be established by encapsulating TTF in hosts and then adjusting its oxidation states sequentially.I nt his way,m ultiple chemical and photonici nput/outputs ignals can be combined in the well-defined TTF&host systema tananosizeds upramolecular scale, providing feasible higher-levell ogic devices with com-plex and integrated functions.…”