Lone pair-π interaction-induced charge-transfer was successfully used for switching the conductance of a coordination network, through variation of the degree of charge transfer caused by external photostimulation. The underlying mechanism is attributed to the changes in efficient charge-carriers by photoinduced strong charge transfer, which was investigated by in situ UV-Vis absorption, ESR, and computational studies.

Li/CF_x cells possess the highest energy density among all lithium primary batteries. Here, the electrochemical lithiation process is elucidated through high-resolution ¹⁹F NMR, in situ⁷Li NMR and TEM methods. Fluorinated carbon CF_L (L is around 0.06 or less) is identified for the first time to be generated in the discharge process of CF_x (x ≥ 0.5) besides LiF and carbon. Moreover, the morphological evolution of the formed LiF, which affects the impedance of the battery during discharge, is illustrated as crystal nuclei of LiF, with a size of around 10 nm, which keep forming and growing into crystal grains of LiF, with a size of around 200 nm, until the surface of the CF_x particles is saturated by LiF and then both crystal nuclei and grains enlarged promptly towards the end of lithiation. This work reveals the electrochemical reaction mechanism of CF_x and provides crucial guidance to enhance the performance of the materials.

A novel sextuple interpenetrated copper-naphthalenediimide network based on adamantane-like cages has been constructed and demonstrates outstanding electron transport.