Nature CommunicationsSolution-synthesized stable triaza[4]triangulene triradical with a quartet ground stateXudong BaiDi ZhangYushuang ZhangYihan WangYanning ChengYi XieZiqi ZhuShang-Da JiangDahui Zhao2026-02-03Full textDOI https://doi.org/10.1038/s41467-026-69048-1