A novel naphthalene-based receptor: Colorimetric and fluorescent PET chemoreceptor for anions

► The synthesis process of receptor 1 (1-hydroxynaphthalene-2-carbaldehyde-4′-nitrophenylhydrazone) is simple and easy. Thus, it made practical use of receptor 1 possible. ► Receptor 1 displays distinct color changes from yellow to purple, which could be observed by the naked eye. In addition, the sensing process is fast and efficient. ► Receptor 1 can recognize acetates which is of great importance since acetates are important biological molecules.