Quinone receptors

Figure 3. Quinone-receptor porphyrin left) and metalloporphyrin right).

Figure 24. AH-TAS plot for complexation by quinone-receptor porphyrins ( ) and ligation to metalloporphyrins (o).

Employing the same calix[4]quinone receptor, Beer et al. have constructed a strap from an anion-binding macrocycle terminated with the [Ru(bpy)2+] and /ac-[ReCl(CO)3bpy] reporter sites [399], The emission quantum yields and lifetimes of 69 and 70 are significantly diminished with respect to their unoxidized calix[4]arene congeners 71 and 72 (69 t = 30 ns, 4>e = 1 x 10-3 vs. 71 ... 

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