Vibrational modes first triplet electronic state

Fig. 1. Jablonski diagram showing absorption and subsequent photophysical modes of excited state decay. Abbreviations are as follows IC = internal conversion ISC = intersystem crossing VR = vibrational relaxation S = singlet and T = triplet. The subscripts (i.e., 0, 1, and 2) indicate ground, first, and second states, respectively, and the arrows in the boxes indicate electron spins.

---