AI Article Synopsis

  • Pyrrolopyrrole aza-BODIPY analogues (PPABs) are new chromophores that can absorb and emit light in the UV/vis and near-infrared range.
  • Changing the substituents on these compounds results in red-shifts in their absorption and emission spectra, meaning they can absorb and emit light at longer wavelengths.
  • For example, increasing the length of thiophene substituents from thiophene to quaterthiophene shifts the absorption and emission from around 700 nm to over 800 nm, indicating a significant change in their optical properties.

Article Abstract

Pyrrolopyrrole aza-BODIPY analogues (PPABs) are a new class of UV/vis and near-infrared chromophores. Varying the substituents results in red-shifts of both the absorption and emission spectra. Extension of the lengths of the oligothiophene substituents from thiophene to quaterthiophene caused red-shifts of the absorption and emission from 699 and 712 nm to 809 and 853 nm, respectively. The piperidylthiophene-substituted PPAB exhibited similar red-shifts of the absorption and emission to 810 and 831 nm, respectively, although only a single thienyl component is present, because of the strong electron-donating nature of the piperidine substituent.

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Source
http://dx.doi.org/10.1002/cplu.201900226DOI Listing

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