Person:
Moreno Jiménez, Florencio

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First Name
Florencio
Last Name
Moreno Jiménez
URI
https://hdl.handle.net/20.500.14352/79918
Affiliation
Universidad Complutense de Madrid
Faculty / Institute
Óptica y Optometría
Department
Química Orgánica
Area
Química Orgánica
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2019 - 20202
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Author: Maroto, Beatriz Lora × Subject: 544.53 ×

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Now showing 1 - 2 of 2
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    BCl3‑Activated Synthesis of COO-BODIPY Laser Dyes: General Scope and High Yields under Mild Conditions
    (Journal of organic chemistry, 2020) Ray Leiva, César; Schad, Christopher; Moreno Jiménez, Florencio; Maroto, Beatriz Lora; Bañuelos Prieto, Jorge; Arbeloa, Teresa; García Moreno, Inmaculada; Villafuerte, Cassie; Muller, Gilles; Moya Cerero, Santiago De La
    A general and straightforward method for the synthesis of COO-BODIPYs from F-BODIPYs and carboxylic acids is established. The method is based on the use of boron trichloride to activate the involved substitution of fluorine, which leads to high yields through rapid reactions under soft conditions. This mild method opens the way to unprecedented laser dyes with outstanding efficiencies and photostabilities, which are difficult to obtain by the current methods.
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    BOPHYs versus BODIPYs: A comparison of their performance as effective multi-function organic dyes
    (Dyes and Pigments, 2019) Sola Llano, Rebeca; Jiménez, J.; Avellanal Zaballa, Edurne; Johnson, M.; Cabreros, Trevor A.; Moreno Jiménez, Florencio; Maroto, Beatriz Lora; Muller, Gilles; Bañuelos Prieto, Jorge; Cerdán Pedraza, Luis; García Moreno, Inmaculada; Moya Cerero, Santiago De La
    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 angiven molecular scaffold outstands BOPHYs as promising dyes competing with the well-settled BODIPY dyes