154
Y. Kubota
Fig. 5.37 Absorption and fluorescence properties of thiophene-[b]-fused BODIPY dyes
Thieno[2,3-b]pyrrole type BODIPY 39 (Wang et al. 2016a), which is the structural isomer of 37, has also been reported (Fig. 5.37c). Similar to the furan-fused
BODIPY dyes, thieno[3,2-b]pyrrole-based BODIPY 40 (Chen et al. 2000) (λ max =
658 nm) shows redshifted λ max compared with the isomeric thieno[2,3-b]pyrrolebased BODIPY 41 (Sun et al. 2016) (λ max = 616 nm) (Fig. 5.37d). Thieno[3,2b]thiophene-fused BODIPY 42 shows a further spectral redshift (λ max = 695 nm,
F max = 701 nm) (Fig. 5.37e) (Sun et al. 2019). The diiodio-substituted derivative 43
Y. Kubota
Fig. 5.37 Absorption and fluorescence properties of thiophene-[b]-fused BODIPY dyes
Thieno[2,3-b]pyrrole type BODIPY 39 (Wang et al. 2016a), which is the structural isomer of 37, has also been reported (Fig. 5.37c). Similar to the furan-fused
BODIPY dyes, thieno[3,2-b]pyrrole-based BODIPY 40 (Chen et al. 2000) (λ max =
658 nm) shows redshifted λ max compared with the isomeric thieno[2,3-b]pyrrolebased BODIPY 41 (Sun et al. 2016) (λ max = 616 nm) (Fig. 5.37d). Thieno[3,2b]thiophene-fused BODIPY 42 shows a further spectral redshift (λ max = 695 nm,
F max = 701 nm) (Fig. 5.37e) (Sun et al. 2019). The diiodio-substituted derivative 43