Cover Picture: A Novel Dual Channel Fluorescent Probe for Ca2+ and Zn2+ Based on a Coumarin Schiff Base (Chin. J. Chem. 8/2017)

The cover picture shows a novel dual channel fluorescent probe for Ca²⁺ and Zn²⁺ based on a coumarin Schiff base. The probe displays a solvent dependent dual sensing, viz., recognition of Ca²⁺ in DMF‐H₂O (9∶1, V /V ) solution based on C = N isomerization, photoinduced electron transfer (PET ) inhibition and chelation‐enhanced fluorescence (CHEF ) mechanism as well as detection of Zn²⁺ in H₂O‐CH₃OH (9∶1, V /V ) solution by excited‐state intramolecular proton transfer (ESIPT ) and CHEF processes. More details are discussed in the article by Guo et al. on page 1263–1269.