achieved the simultaneous enhancement in the conductance and the Seeback-coefficient by bridging the Blatter's radical between gold electrodes. Tetraphenylhexaazaanthracene (TPHA) is the earliest compound containing Blatter radical with the zwitterionic ground-state. Recently, Rajca et al. synthesized stable diradicals by coupling the Blatter radical with the nitronyl nitroxide radical and di-Blatter diradical (Figure ). Alongside, several hybrid diradicals have been modeled and strong ferromagnetic interactions have been predicted by our group by employing ab initio CASSCF/NEVPT2 methods. Lately, an appreciable enlargement in exchange interactions has been realized by taking advantage of oxygen-functionalized planar analogues of Blatter's radical. Zheng et al. have also synthesized di-Blatter's diradicals with singlet ground-state. We have investigated different isomers of di-Blatter's diradicals by coupling the radical moieties through fused benzene ring and observed antiferromagnetic exchange for stable isomers due to the existence of micromagnetic spin-centers. By increasing the number of benzene rings between the two radical moieties, we also realized ferromagnetic interactions with a larger coupler.