A Novel Water-Stable Luminescent Metal Complex Exhibiting High Sensitive and Selective Detection to Fe3+ and Al3+

The application of metal complexes as fluorescent sensor materials has attracted great attention. In this work, we designed and synthesized a tetraphenyl ethylene-based zinc complex {[ZnLCl]·H 2 O} n ( 1 ), which not only has excellent water stability, but also shows good photoluminescence behavior. These properties endow 1 a good fluorescence detection ability to metal ions. The experimental results also confirm that the fluorescence behavior of 1 can be quenched by Fe 3+ or Al 3+ rapidly and sensitively. When other metal ions coexist with Fe 3+ or Al 3+ , 1 can still effectively recognize Fe 3+ or Al 3+ . It means that 1 is a potential fluorescent sensor material with super anti-interference ability to detect Fe 3+ or Al 3+ . The reason is that there are weak interactions between Fe 3+ /Al 3+ and oxygen and nitrogen atoms in 1 . Since there's the competitive absorption between Fe 3+ and 1 , the quenching effect coefficient of Fe 3+ is larger than that of Al 3+ and the quenching effect is better than that of Al 3+ .