Spiro-fused bicyclo[3,2,2] octatriene-cored triptycene: synthesis, molecular packing, and functional aggregates. - Liu, Qing; Chen, Xian; Zhou, Zhibiao; Huang, Tingting; Wang, Yanpei; Xie, Sheng; Zeng, Zebing; Tang, Ben Zhong (SCIENCE CHINA Chemistry, 2021)