In this OPARA entry, the data for the main figures of the publication "Systematic variation of the acceptor electrophilicity in donor-acceptor-donor emitters
exhibiting efficient room temperature phosphorescence suited for digital luminescence" by Tsiko et al. are provided.

Figure 2. Molecular structures of BP-2TA, Py-2TA, PyCN-2TA, and Pm-2TA. Detailed crystal structure information is provided in the Supporting Information (SI) of the publication.

Figure 3. Frontier molecular orbitals and energy levels of BP-2TA, Py-2TA, PyCN-2TA, Pm-2TA, and PmCN-2TA. cube files to create the orbital plots are proveded here. Relaxed molecular structures can be found in the SI.

Figure 4. Absorption spectra of BP-2TA, Py-2TA, PyCN-2TA, Pm-2TA, and PmCN-2TA in PS (a), and simulated via TD-DFT (b). For comparison, the absorption of PS (a) and TA (b) are provided as well. The simulated spectra are obtained in gas phase and empirically red-shifted by 500 meV to approximately reproduce the experimental spectra.

Figure 5. Emission spectra (λ_exc= 275 nm) of Py-2TA, PyCN-2TA, Pm-2TA, and PmCN-2TA in PS at room temperature under aerated and nitrogen atmosphere. 

Figure 6a. Delayed spectra of Py-2TA, PyCN-2TA, Pm-2TA, and PmCN-2TA in PS at room temperature under nitrogen atmosphere collected at a delay time of 10 ms, showing only the phosphorescence (λ_exc= 275 nm).

Figure 6b. Phosphorescence decay of Py-2TA, PyCN-2TA, Pm-2TA, and PmCN-2TA in PS at room temperature under nitrogen atmosphere. Biexponential fit functions (Py-2TA, PyCN-2TA) and triexponential fit functions (Pm-2TA, PmCN-2TA) are used to extract the phosphorescence lifetimes.

Figure 7a. Photoluminescence intensity over illumination time for the first activation cycle of programmable luminescent tags (PLTs) using BP-2TA, Py-2TA, and PyCN-2TA.

Figure 7b. Maximum photoluminescence intensity over ten cycles of writing and erasing for PLTs using BP-2TA, Py-2TA, and PyCN-2TA.