Citation: Song, Yang; Fan, Rui-Qing; Wang, Xin-Ming; Gao, Song; Du, Xi; Wang, Ping; Yang, Yu-Lin (2016). Direct observation of a fast single-crystal-to-single-crystal transformation from a CuII-framework to a CuI-chain mediated by ascorbic acid. CrystEngComm, 18, pp. 1878-.