Two versatile luminescence ion probes for potassium ions have been designed based on the "switching on and off" of the gold-gold interaction. Addition of potassium ions to the gold(I) complexes [Au2 (R2 PCH2 PR2 )(S-benzo[15]crown-5)2 ] (see the picture; R=Ph, cyclohexyl; M+ =K+ ) give rise to an intense red luminescence.
基于金-金相互作用的“接通和断开”,已经设计了两种用于钾离子的通用发光离子探针。向金(I)配合物中添加钾离子[Au 2(R 2 PCH 2 PR 2)(S-苯并[15]冠-5)2 ](参见图片; R = Ph,环己基; M + = K +)产生强烈的红色发光。