Abstract
A novel single-armed Salamo-type bisoximes (H3L) has been designed and synthesized firstly. A new application of Salamo-type bisoximes in ion recognition is investigated in detail. H3L can act as a relay–sensor for ratiometric recognition of Zn2+/Cu2+ with high selectivity and sensitivity. The Zn2+ and Cu2+ complexes behave successive sensing of H+/OH− through fluorescence intensity increasing (ON) and decreasing (OFF). Meanwhile, the crystal structures of the Zn2+ and Cu2+ complexes based on H3L, [Zn(L)(μ-OAc)Zn] and [Cu(L)(μ-OAc)Cu], have been determined by X-ray crystallographic analyses, respectively.
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