2026-10-11T05:00:32Z https://api.figshare.com/v2/oai

oai:figshare.com:article/33979060 2026-09-24T04:05:25Z category_1 category_4 category_146 category_915 category_7 category_15 category_21 category_272 category_873 category_734 category_135 portal_63 item_type_3 month_year_09_2026

Redox-Switchable Tristable 1,3,2,4,5-Triboradiazoles Yu Mu (561125) Yuyang Dai (12250176) Taisong Zhao (22490407) Haotian Wu (1774378) Chen-Ho Tung (654283) Lingbing Kong (2249812) Biophysics Biochemistry Space Science Physical Sciences not elsewhere classified Medicine Neuroscience Biotechnology Environmental Sciences not elsewhere classified Chemical Sciences not elsewhere classified Biological Sciences not elsewhere classified Computational Biology findings establish triboradiazoles distinct electronic structures weakly antiaromatic states triboradiazole (< b bond insertion chemistry switchable tristable 1 dependent optical responses compact bn platform 3 </ sub 2 </ sub weakly aromatic single b optical properties inorganic bn dependent changes compact main bond functionalization undergoes clean structural characterization properties within neutral state heterocycle isoelectronic chemical reactivity aromatic character Achieving multiple reversible redox states with distinct electronic structures and properties within a compact main-group molecular framework remains challenging. Here we report a 1,3,2,4,5-triboradiazole (<b>2</b>), an all-inorganic BN-heterocycle isoelectronic with Cp^–, that undergoes clean and fully reversible 0/+1/+2 redox interconversion, enabling the isolation and structural characterization of three discrete redox states based on a single B₃N₂ ring. Stepwise oxidation progressively alters the aromatic character from weakly aromatic to nonaromatic and weakly antiaromatic states, accompanied by redox-dependent optical responses. The redox state dictates fundamentally different reaction pathways at the B–B unit, enabling π-bond functionalization in the neutral state but σ-bond insertion chemistry in the dication. These findings establish triboradiazoles as a compact BN platform that couples multistate redox chemistry with redox-dependent changes in aromatic character, optical properties, and chemical reactivity. 2026-09-24T00:00:00Z Dataset Dataset 10.1021/jacs.6c02958.s001 https://figshare.com/articles/dataset/Redox-Switchable_Tristable_1_3_2_4_5-Triboradiazoles/33979060 CC BY-NC 4.0