Photoinduced switching of metal complexation by quinolinospiropyranindolines in polar solvents

Abstract

The first demonstration of rapid and reversible, photoinduced switching of metal complexation from a quinolinospiropyranindoline–metal complex in aqueous solution is presented.

References

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10. In addition to Zn²⁺, the photoreversibility of complexation by NQSP and QSP was examined using UV–VIS spectroscopy for the following metals: Zn²⁺, Hg²⁺, Cd²⁺, Pb²⁺, Cu²⁺, Ni²⁺, Co²⁺, Mg²⁺, Ca²⁺and Al³⁺. NQSP in THF exhibited photoreversibility for Hg²⁺, Cd²⁺, Pb²⁺, Mg²⁺, Ca²⁺ and Al³⁺, while QSP in THF and MeCN exhibited photoreversibility for only Zn²⁺ and Al³⁺.