Two multichromophoric FRET macrocycles M1 [1+1] and M2 [2+2] with red emission ( ∼ 721 nm) composed of perylenediimide (PDI) as the energy donor and aza-BODIPY (ABDP) as the energy acceptor were synthesized by click reaction in a metal-free fashion. M1 and M2 exhibited distinct reversible ratiometric temperature responsive emission with temperature sensitivities of 0.09-0.14% °C and owing to the redox active chromophores, they showed solution phase redox responsive reversible colour changes.
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| http://dx.doi.org/10.1039/d2cc06225a | DOI Listing |
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