two (trifluoromethyl)sulfonyl (Tf=SO2CF3) groups, into several fluorescence dyes including boron‐dipyrromethenes (BODIPYs), fluoresceins, and aminocoumarins has been achieved by the 2,2‐bis(triflyl)ethylation reaction of the dye frameworks with highly electrophilic Tf2C=CH2, followed by neutralization with NaHCO3. Despite the contradiction between water solubility and lipophilicity, the carbanion‐decorated
2,2已成功实现了将由两个(三氟甲基)磺酰基(Tf = SO 2 CF 3)基团牢固稳定的碳负离子取代基安装到几种荧光染料中,包括硼二吡咯烷酮(BODIPYs),荧光素和氨基香豆素。带有高亲电性的Tf 2 C = CH 2的染料骨架发生双(三氟乙)乙基化反应,然后用NaHCO 3中和。尽管水溶性和亲脂性之间存在矛盾,但如此获得的碳负离子修饰的染料不仅水溶性显着提高,而且亲脂性也显着提高。这项工作清楚地表明,氟化的高度稳定的碳负离子取代基是控制化学材料宏观性能的新选择。
Modulating absorption and charge transfer in bodipy-carbazole donor–acceptor dyads through molecular design
作者:John Strahan、Bhooshan C. Popere、Piyachai Khomein、Craig A. Pointer、Shea M. Martin、Amanda N. Oldacre、S. Thayumanavan、Elizabeth R. Young
DOI:10.1039/c9dt00094a
日期:——
4-difluoro-4-bora-3a,4a-diaza-s-indacene) donor–acceptor dyads were designed and synthesized, and their ground-state and photophysicalproperties were systematically characterized. The electronic coupling between the BDP chromophore and an electron-donating carbazole (Carb) moiety was tuned by attachment via the meso and the beta positions on the BDP core, and through the use of various chemical linkers (phenyl
fluorescence around 640 nm in nonpolar and moderately polar solvents. The TPA substituent with propeller-like nonplanar geometry could prevent H-type aggregation between neighboring BODIPY derivative units and induce aggregation-induced emission enhancement (AIEE) characteristics of the BODIPY derivatives with TPA substituents, which are helpful to maintain their emission efficiencies under highly concentrated
From photosensitizers to light harvesters adapting the molecular structure in all-BODIPY assemblies
作者:Edurne Avellanal-Zaballa、Alejandro Prieto-Castañeda、Carolina Díaz-Norambuena、Jorge Bañuelos、Antonia R. Agarrabeitia、Inmaculada García-Moreno、Santiago de la Moya、María J. Ortiz
DOI:10.1039/d1cp00991e
日期:——
The designed protocol enables a fine modulation of the photonic performance of BODIPY-based molecular assemblies. The choice of the spacer and building blocks leads to triads featuring tunable singlet oxygen generation and an energy transfer laser.
BODIPY-Tetrazine Derivatives as Superbright Bioorthogonal Turn-on Probes
作者:Jonathan C. T. Carlson、Labros G. Meimetis、Scott A. Hilderbrand、Ralph Weissleder
DOI:10.1002/anie.201301100
日期:2013.7.1
The fastest and the brightest: A new design that intimately connects tetrazine to a BODIPY fluorophore enables exceptionally efficient energy transfer and quenching. Upon reaction of the tetrazine, the brightness of the fluorophore increases more than a thousand‐fold, which is a fluorogenic activation up to two orders of magnitude greater than previously described.