Abstract

The efficiency of luminescence quenching of the metal–organic framework {[Zn(L)(DPDC)]}n (L = 1,4,8,11-tetraazacyclotetradecane, DPDC2– = 4,4ʹ-diphenyldicarboxylate) by aromatic nitro compounds depends on their structure. Nitrobenzene and nitrotoluene derivatives are found to have a much smaller effect than phenol and aniline derivatives. It is suggested that there is no electron transfer due to π-stacking interactions in these systems and a mechanism involving resonance energy transfer due to overlap of the luminophore emission band and the absorption bands of the quenchers is more probable.

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