Green Chemistry and Technology

Biography

Biography: Rong-Xin Yuan

Abstract

Excessive Fe³⁺ ions in water will cause great harm to the human body, even if it is required. Therefore, the design of new flurescence probes for Fe³⁺ ion is very important . Herein, Mg(HPCD) (H₂O) (H₃PCD=9-(2-(ethoxy(hydroxy)phosphoryl)ethyl)-9H-carbazole-3,6-dicarboxylic acid) was synthesized and characterized. Adjacent {MgO₆} octahedra are joined by O-P-O and O-C-O groups into 1D chain, which are linked by the HPCD^2- ligands to form a 2D layer parallel then packed to form  a 3D network(Fig.1). The Fe³⁺ ion can reduce fluorescence relative to other  metal ions (Cd²⁺, Co²⁺, Cu²⁺, Sr²⁺, Al³⁺, Zn²⁺, Mn²⁺, Pb²⁺, Fe²⁺) (Fig.2), so the compound may be used as a fluorescence prob for Fe³⁺ ion. 

Fig.1 Structure of Mg(HPCD)(H₂O) viewed along the b-axis.

Fig.2 Fluorescence intensities of Mg(HPCD)(H₂O) immersed in the individual aqueous solutions