biostudies-literatureRamachandran MRKDeutsche ForschungsgemeinschaftAlexander von Humboldt-StiftungNemzeti Kutat?si Fejleszt?si ?s Innov?ci?s HivatalMagyar Tudom?nyos Akad?mia4639-4646https://www.ebi.ac.uk/biostudies/studies/S-EPMC8941515biostudies-literatureUnknown61(11)Anionic 1,4-dihydro-1,4-diphosphinines were synthesized from tricyclic 1,4-diphosphinines and isolated as blue powdery salts M[2a-2c]. Reaction of solutions of these monoanions with iodomethane led to P-methylated compounds 3a-3c. An oxidation/reduction cycle was examined, starting from solutions of K[2a] via P-P coupled product 4a and back to K[2a], and the recyclability and redox chemistry of this cycle were confirmed by experimental and simulated cyclic voltammetry analysis, which is proposed as a potential 2-electron cathode for rechargeable cells. TD-DFT studies were used to examine species that might be involved in the process.Inorganic chemistryReversible Redox Chemistry of Anionic Imidazole-2-thione-Fused 1,4-Dihydro-1,4-diphosphinines.PMC8941515STR 441/52-1TKP2021/BME-NVA-02Kelemen ZGal DRamachandran MRKStreubel RKNyulaszi LBoere RTMajumdar MSchnakenburg GfalseReversible Redox Chemistry of Anionic Imidazole-2-thione-Fused 1,4-Dihydro-1,4-diphosphinines.Anionic 1,4-dihydro-1,4-diphosphinines were synthesized from tricyclic 1,4-diphosphinines and isolated as blue powdery salts M[2a-2c]. Reaction of solutions of these monoanions with iodomethane led to P-methylated compounds 3a-3c. An oxidation/reduction cycle was examined, starting from solutions of K[2a] via P-P coupled product 4a and back to K[2a], and the recyclability and redox chemistry of this cycle were confirmed by experimental and simulated cyclic voltammetry analysis, which is proposed as a potential 2-electron cathode for rechargeable cells. TD-DFT studies were used to examine species that might be involved in the process.2022-01-01T00:00:00Z2022 Mar2025-04-18T15:07:00.129Z2025-04-07T01:42:56.849ZS-EPMC89415153525828110.1021/acs.inorgchem.1c03620