Aza-BODIPY-based logic gate chemosensors and their applications.

Dimethylaniline-substituted aza-BODIPY dyes (DA, DM, DP) were designed and synthesized aiming for ion detection. The Zn recognition ability was found in all compounds and the binding mechanism was possibly via dimethylaniline sites linked to the aza-BODIPY core. Upon Zn addition, the new absorption band and the color change occurred due to the altered charge transfer of the adducts.

Colorimetric Cu Detection of (1,2)-1,2-Bis((1-pyrrol-2-yl)methylene)hydrazine Using a Custom-Built Colorimeter.

The compound (1,2)-1,2-bis((1-pyrrol-2-yl)methylene)hydrazine () was investigated for its chemosensor application. The colorimetric response of with various ions was investigated, and the selective optical change upon mixing with Cu was found. The Cu binding stoichiometry of derived from Job's plot and the study give us the tentative structural detail of the binding mode of and Cu being 1:1.