[EN] ONE-STEP, FAST, 18F-19F ISOTOPIC EXCHANGE RADIOLABELING OF DIFLUORO-DIOXABORININS AND USE OF SUCH COMPOUNDS IN TREATMENT [FR] RADIOMARQUAGE PAR ÉCHANGE ISOTOPIQUE 18F-19F RAPIDE EN UNE SEULE ÉTAPE DES DIFLUORO-DIOXABORININES ET UTILISATION DE TELS COMPOSÉS À DES FINS THÉRAPEUTIQUES
Triphenylamine-modified difluoroboron dibenzoylmethane derivatives: Synthesis, photophysical and electrochemical properties
作者:Hao Zhang、Chun Liu、Jinghai Xiu、Jieshan Qiu
DOI:10.1016/j.dyepig.2016.09.036
日期:2017.1
(BF2) β-diketonate complexes, one asymmetrical 2 and the other symmetrical 3, were synthesized and fully characterized. The effects of the triphenylamine substituent on the photoluminescence, redox properties and photostability of these BF2 complexes were investigated. These new compounds exhibit long-wavelength absorption and strong intramolecular charge transfer emission and reversible oxidation and
Selective Addition of Organolithium Reagents to BF<sub>2</sub>-Chelates of β-Ketoesters
作者:Bogdan Štefane
DOI:10.1021/ol100620j
日期:2010.7.2
A short, mild, and highly chemoselective addition of organolithiumreagents to a BF2 complex of 3-oxopropanoates has been developed. The methodology allows straightforward preparation of various 1,3-dioxa-BF2 complexes and subsequently leads to the formation of 1,3-diketones starting from the corresponding 3-oxopropanoates.
Nitrogen-Containing Analog of Dibenzoylmethanate of Boron Difluoride: Luminescence, Structure, Quantum Chemical Modeling, and Delay Fluorescence
作者:Elena V. Fedorenko、Galina O. Тretyakova、Anatolii G. Mirochnik、Anton Yu. Beloliptsev、Irina V. Svistunova、Viacheslav A. Sazhnikov、Levon S. Atabekyan
DOI:10.1007/s10895-016-1876-2
日期:2016.9
Borondifluoride of 3-amino-1,3-diphenyl-2-propene-1-onate (1) has been synthesized and its crystal structure has been determined. The comparative studies of 1 and its oxygen analog 1,3-diphenyl-1,3-dionate (dibenzoylmethanate) of borondifluoride (2) have been performed using the methods of stationary and time-resolved spectroscopy and quantum chemical modeling. It was established that at the transition
Organic Thermometers Based on Aggregation of Difluoroboron β-Diketonate Chromophores
作者:Jian-Xin Wang、Teng-Shuo Zhang、Xin Zhu、Chun-Xiang Li、Lei Dong、Ganglong Cui、Qing-Zheng Yang
DOI:10.1021/acs.jpca.0c08649
日期:2020.12.3
We report several novel thermometers resulting from the temperature-induced aggregation of difluoroboron β-diketonate chromophores. These thermometers exhibit a much wider temperature-dependent fluorescence emission from 445 to 592 nm along with the color change from blue to red in a dilute chloroform solution. Spectroscopy measurements and theoretical calculations confirm that the thermochromic luminescence
Blue thermally activated delayed fluorescence from a biphenyl difluoroboron β-diketonate
作者:Margaret L. Daly、Christopher A. DeRosa、Caroline Kerr、William A. Morris、Cassandra L. Fraser
DOI:10.1039/c6ra18374c
日期:——
Optical properties of biphenyl difluoroboron β-diketonates were studied in poly(lactic acid) (PLA) blends. Increased conjugation lowered the emission energy, decreased the singlet–triplet energy gap and yielded blue thermally activated delayed fluorescence (TADF). The properties of these biphenyl dyes may inform organic light emitting diode (OLED) and bioimaging agent design.