A series of potent BODIPY photosensitisers featuring tellurophene motifs at boron†
Andrew A.
Beharry 
*b
and
Alison
Thompson
*a
*b
and
Alison
Thompson
*a
Abstract
This article describes the synthesis and photophysical properties of a series of BODIPY photosensitisers that feature tellurophene motifs appended at the boron centre. These compounds were obtained via nucleophilic substitution of various F-BODIPYs with lithiated tellurophene. The synthetic scope, photophysical characteristics and photosensitisation properties are discussed. Structural modifications around the BODIPY core resulted in an eight-fold improvement in light IC50 values compared to previous designs.
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