Fractional Spinon Quasiparticles in Open-Shell Triangulene Spin-1/2 Chains - Zhangyu Yuan; Xin-Yu Zhang; Yashi Jiang; Xiangjian Qian; Ying Wang; Yufeng Liu; Liang Liu; Xiaoxue Liu; Dandan Guan; Yaoyi Li; Hao Zheng; Canhua Liu; et al. (Journal of the American Chemical Society, 2025)