| Abstract: The compand L (L=(2E,2′E)-2,2′-(1,4-phenylenebis(methan-1-yl-1-ylidene))bis(hydrazinecarbothioamide)) was synthesized and its complex with gadolinium was designed as a receptor. The binding properties of the receptor with anions such as F-, Cl-, Br-, I-, Ac-, NO3-, HSO4- and H2PO4- in DMSO were investigated by UV-Vis spectroscopy. A clear color change from colorless to yellow was observed upon addition of F- or H2PO4- to the solution of the receptor in DMSO. The results indicated that the receptor exhibited a better selectivity for F- and H2PO4-, but had no evident binding with Cl-, Br-, I-, Ac-, NO3-, HSO4-, etc. Job plots showed that a 1∶1 stoichiometry complex was formed between the receptor and F- (or H2PO4-). The binding manner between the complex GdL and the two ions was proposed. Hereby, starting with GdL system, an OR logic gate was fabricated with F- and H2PO4- as two chemical inputs. |
