The Ground State of Multispin Systems Based on Verdazyl and Nitrene Radicals: An EPR and Quantum-Chemical Study. - Shmakov AS; Shurikov MK; Korchagin DV; Votkina DE; Postnikov PS; Akimov AV; Petunin PV; Tretyakov EV (The journal of physical chemistry. A, 2025)