A comparative study between acridine-based macrocycle chemosensor switches to Cd(II): synthesis, spectroscopy, and theoretical calculation

ABSTRACT

The absorption and emission properties of three acridine-based macrocycles MAC, DAC, and TAC that contain one, two, and four fluorophore units per molecule, respectively, were interpreted and discussed based on DFT and TD-DFT calculations, molecular size, and flexibility. The molecules were tested as fluorosensors for the detection of Cd²⁺ ions in organic media.

GRAPHICAL ABSTARCT

KEYWORDS:

• Cadmium(II)
• acridine
• fluorescent chemosensor
• spectroscopy
• DFT

Acknowledgments

We gratefully thank Professor Leni Campos Akcelrud for allowing access to the fluorometer at Paulo Scarpa Laboratory, UFPR.

Disclosure statement

No potential conflict of interest was reported by the author(s).

Supplementary material

Supplemental data for this article can be accessed here.

Additional information

Funding

Brazilian Research Council CNPq supported this work. F.S.N. and F.S.C. thank CNPq and CAPES for research fellowships.