Novel Aminopyrene Substituted Monospiro/Dispiro Cyclotriphosphazenes: Synthesis, Characterization and Chemosensor Properties

Abstract

In the present work, the novel aminopyrene substituted monospiro/dispiro cyclotriphosphazenes (6 and 7) have been synthesized. This compounds were characterized general spectroscopic techniques such as mass, ¹H and ³¹P NMR spectrometry. The photophysical and chemosensor properties toward various metals (Fe³⁺, Cr³⁺, Co²⁺, Al³⁺, Hg⁺, Mn²⁺, Ni²⁺, Cu²⁺, Cd²⁺, Zn²⁺, Mg²⁺, Ca²⁺, Ba²⁺, Li⁺, Na⁺, K⁺, Cs⁺) in THF solutions of aminopyrene substituted compounds were investigated by fluorescence spectroscopy. The metal sensing results showed that compounds 6 and 7 can be candidate fluorescent chemosensors for Cu²⁺ and Fe³⁺ ions due to their displaying high selectivity and low limit of detection.

Keywords

• Cyclotriphosphazene,Monospiro,Dispiro,1-Aminopyrene,Photophysical Properties

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