Scheme 2: The identified IST molecular cores.

The molecular structures of 46 IST molecular cores and their vertical \(\Delta {E}_{\mathrm{ST}}\) (eV) at SC-NEVPT2(8,8)/cc-pVDZ level.

The molecular structures of 46 IST molecular cores and their vertical \(\Delta {E}_{\mathrm{ST}}\) (eV) at SC-NEVPT2(8,8)/cc-pVDZ level.