BOPHYs

Autor: Edurne Avellanal-Zaballa, Trevor A. Cabreros, Beatriz Lora Maroto, Jorge Bañuelos, I. García-Moreno, Florencio Moreno, Mizuki Johnson, Gilles Muller, Rebeca Sola-Llano, Luis Cerdán, S. de la Moya, Josué Jiménez
Přispěvatelé: Ministerio de Ciencia, Innovación y Universidades (España), Eusko Jaurlaritza, National Institutes of Health (US), Comunidad de Madrid, Universidad Complutense de Madrid
Rok vydání: 2021
Předmět:
Zdroj: Digital.CSIC. Repositorio Institucional del CSIC
instname
Dyes Pigm
ISSN: 0143-7208
Popis: 11 pags., 8 figs., 2tabs., 1 app.
The computationally-aided photophysical and lasing properties of a selected battery of BOPHYs are described and compared to those of related BODIPY counterparts. The present joined theoretical-experimental study helps to put into context the weaknesses and strengths of both dye families under different irradiation conditions. The chemical versatility of the BOPHY scaffold has been also comparatively explored to modulate key photonic properties towards the development of red-emitting dyes, chiroptical dyes and singlet oxygen photosensitizers. Thus, BOPHY BINOLation by fluorine substitution with enantiopure BINOLs endows the BOPHY chromophore with chiroptical activity, as supporting by the simulated circular dichroism, decreasing deeply its fluorescent response due to the promotion of fluorescence-quenching intramolecular charge transfer (ICT). Interestingly, the sole alkylation of the BOPHY core strongly modulates the promotion of ICT, allowing the generation of highly bright BINOL-based BOPHY dyes. Moreover, 3,3′-dibromoBINOLating BOPHYs can easily achieve singlet-oxygen photogeneration, owing to spin-orbit coupling mediated by heavy-atom effect feasible in view of the theoretically predicted disposition of the bromines surrounding the chromophore. From this background, we have established the master guidelines to design bright fluorophores and laser dyes, photosensitizers for singlet oxygen production and chiroptical dyes based on BOPHYs. The possibility to finely mix and balance such properties in a given molecular scaffold outstands BOPHYs as promising dyes competing with the well-settled BODIPY dyes.
Financial support from MINECO (MAT2017-83856-C3-1-P, -2-P and-3-P) and Gobierno Vasco (IT912-16) is gratefully acknowledged. G.M.thanks the NIH, Minority Biomedical Research Support (1 SC3GM089589-08), and the Henry Dreyfus Teacher-Scholar Award forfi-nancial support. E.A.Z. and R.S.L. thank Gobierno Vasco for a pre-doctoral fellowship and a postdoctoral contract, respectively. J.J.thanks Comunidad de Madrid/UCM for a research contract.
Databáze: OpenAIRE
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