Person: Moreno Jiménez, Florencio
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First Name
Florencio
Last Name
Moreno Jiménez
Affiliation
Universidad Complutense de Madrid
Faculty / Institute
Óptica y Optometría
Department
Química Orgánica
Area
Química Orgánica
Identifiers
6 results
Search Results
Now showing 1 - 6 of 6
Item N-BODIPYs Come into Play: Smart Dyes for Photonic Materials(Chemistry: a european journal, 2017) Ray Leiva, César; Díaz Casado, Laura; Avellanal-Zaballa, Edurne; Bañuelos Prieto, Jorge; Cerdán Pedraza, Luis; García Moreno, Inmaculada; Moreno Jiménez, Florencio; Maroto, Beatriz Lora; López Arbeloa, Íñigo María; Moya Cerero, Santiago de laN-BODIPYs (diaminoboron dipyrromethenes) are unveiled as a new family of BODIPY dyes with huge technological potential. Synthetic access to these systems has been gained through a judicious design focused on stabilizing the involved diaminoboron chelate. Once stabilized, the obtained N-BODIPYs retain the effective photophysical behavior exhibited by other boron-substituted BODIPYs, such as O-BODIPYs. However, key bonding features of nitrogen compared to those of oxygen (enhanced bond valence and different bond directionality) open up new possibilities forfunctionalizing BODIPYs, allowing an increase in the number of pendant moieties (from two in O-BODIPYs, up to four in N-BODIPYs) near the chromophore and, therefore, greater control of the photophysics. As a proof of concept, the following findings are discussed: (1) the low-cost and straightforward synthesis of a selected series of N-BODIPYs; (2) their outstanding photophysical properties compared to those of related effective dyes (excellent emission signatures, including fluorescence in the solid state; notable lasing capacities in the liquid phase and when doped into polymers; improved laser performance compared to the parent F-BODIPYs); (3) the versatility of the diaminoboron moiety in allowing the generation of multifunctionalized BODIPYs, permitting access to both symmetric and asymmetric dyes; (4) the capability of such versatility to finely modulate the dye photophysics towards different photonic applications, from lasing to chemosensing.Item BINOLated aminostyryl BODIPYs: a workable organic molecular platform for NIR circularly polarized luminescence(Chemical Communications, 2021) Jiménez González, Josué; Díaz Norambuena, Carolina; Serrano Villar, Sergio; Ma, Shing Cho; Moreno Jiménez, Florencio; Maroto, Beatriz Lora; Bañuelos Prieto, Jorge; Muller, Gilles; Moya Cerero, Santiago de laThe accessible at-boron-BINOLated 3,5-bis(4-aminostyryl)ated BODIPY scaffold is highlighted as a workable platform for developing enantiopure small organic molecules exhibiting CPL in the NIR region, even in water solution, the latter being key for CPL-based bioapplications. Synthetic simplicity, noticeable chiroptical efficiency in the NIR and the possibility to access water-soluble emitters pave the way for advancing CPL tools based on organic emitters and NI radiation.Item Modulating ICT emission: a new strategy to manipulate the CPL sign in chiral emitters(Chemical Communications, 2019) Jiménez González, Josué; Moreno Jiménez, Florencio; Maroto, Beatriz Lora; Cabreros, Trevor A.; Huy, Angelenia S.; Muller, Gilles; Bañuelos Prieto, Jorge; Moya Cerero, Santiago de laA new strategy to manipulate the circularly polarized luminescence (CPL) handedness in chiral emitters, based on modulating the population of an emissive ICT state, is proposed. Such a strategy is particularly interesting for conformationally rigid and non-aggregating chiral organic emitters, opening up new perspectives for the development of CPL application based on organic moleculesItem 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 laThe 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 dyesItem Spiranic BODIPYs: a ground-breaking design to improve the energy transfer in molecular cassettes(Chemical Communications, 2014) Márquez Sánchez-Carnerero, Esther María; Gartzia-Rivero, Leire; Moreno Jiménez, Florencio; Lora Maroto, Beatriz; Rodríguez Agarrabeitia, Antonia; Ortiz García, María Josefa; Bañuelos Prieto, Jorge; López Arbeloa, Íñigo María; Moya Cerero, Santiago De LaBoosted excitation energy transfer in spiranic O BODIPY/polyarenecassettes, when compared with the parent non-spiranic (flexible) system, is highlighted as a proof for the ability of a new structural design to improve the energy transfer in molecular cassettesItem Bis(haloBODIPYs) with Labile Helicity: Valuable Simple Organic Molecules That Enable Circularly Polarized Luminescence(Chemistry: a european journal, 2016) Ray Leiva, César; Márquez Sánchez-Carnerero, Esther María; Moreno Jiménez, Florencio; Lora Maroto, Beatriz; Rodríguez Agarrabeitia, Antonia; Ortiz García, María Josefa; López Arbeloa, Íñigo María; Bañuelos Prieto, Jorge; Cohovi, Komlan D.; Lunkley, jamie L.; Muller, Gilles; Moya Cerero, Santiago De LaSimple organic molecules (SOM) based on bis(haloBODIPY) are shown to enable circularly polarized luminescence (CPL), giving rise to a new structural design for technologically valuable CPL-SOMs. The established design comprises together synthetic accessibility, labile helicity, possibility of reversing the handedness of the circularly polarized emission, and reactive functional groups, making it unique and attractive as advantageous platform for the development of smart CPL-SOMs.