title: Digital logic circuit based on a single molecular system of salicylidene Schiff base.
abstract: The salicylidene Schiff base N-3,5-dichloro-salicylidene-(S)-alpha-phenylethylamine (SPEA) has been synthesized and characterized. Stimulated by one optical input (UV light) and two chemical inputs (OH(-) and Zn(2+)), SPEA undergoes reactions of photochemistry, deprotonation, and complexation. Tailing these reactions by means of the UV-vis absorption spectra and fluorescence spectra, two obvious optical outputs, an absorption band at 323 nm and a fluorescent emission peak at 460 nm, have been obtained. On the basis of encoding binary digits in these inputs and outputs applying positive logic conventions, one monomolecular circuit, which integrates one OR, two NOT, and four AND gates, has been achieved.
authors.affiliation: Key Laboratory for Supramolecular Structure and Materials of Ministry of Education, Jilin University, 2699 Qianjin Street, Changchun 130012, P. R. China.
authors.forename: Liyan
authors.initials: L
authors.lastname: Zhao
authors.forename: Dan
authors.initials: D
authors.lastname: Sui
authors.forename: Jia
authors.initials: J
authors.lastname: Chai
authors.forename: Yue
authors.initials: Y
authors.lastname: Wang
authors.forename: Shimei
authors.initials: S
authors.lastname: Jiang