The Blatter's based triradical which is recently synthesized by Rajca et al. is shown in Figure . This is a combination of two previously synthesized diradicals by them, as shown in Figures and. As discussed before, it is reported to have high-spin quartet ground state with 70% population at room temperature and possess two doublet excited states with doublet-quartet energy gaps of 0.2 kcal/mol (69.9 cm -1 ) and 1.2 kcal/mol (419.7 cm -1 ) estimated using EPR spectroscopy. Slightly larger energy gaps of 0.3 kcal/mol (104.9 cm -1 ) and 1.83 kcal/mol (629.6 cm -1 ) are obtained with SQUID magnetometry measurements.