The synthesis of boranil dye fluorescentprobes for the detection of hydrogenperoxide has been described. The probes exhibited high selectivity in sensing hydrogenperoxide among other reactive oxygen species, reactive nitrogen species and biologically pertinent species. The probes display good sensitivity and a rapid response time. The sensing mechanism was ascertained by ESI-MS analysis and density
已经描述了用于检测过氧化氢的硼腈染料荧光探针的合成。这些探针在检测其他活性氧,活性氮和生物学相关物质中的过氧化氢方面表现出很高的选择性。探针显示出良好的灵敏度和快速的响应时间。通过ESI-MS分析和密度泛函理论(DFT)计算确定了传感机制。该探针已成功应用于生理条件下HeLa细胞中H 2 O 2的成像。
Photoinduced interaction studies on N-(2-methylthiophenyl)-2-hydroxy-1-naphthadiamine with TiO2 nanoparticles: A combined experimental and theoretical (DFT and spectroscopic) approach
作者:S. Pushpam、S. Gayathri、V. Ramakrishnan
DOI:10.1016/j.saa.2014.04.167
日期:2014.12
Schiff base derivative synthesized by the reaction of 2-(methylthio) aniline and 2-hydroxy-1-naphthaldehyde exhibits keto-amine tautomerism in methanol solvent. The fluorescence quenching of N-(2-methyl thiophenyl)-2-hydroxy-1-naphthadiamine (NMTHN) by TiO2 nanoparticles in methanol has been studied. The excitation and emission peaks have been observed at 439 and 509 nm respectively. The apparent association constant has been deduced from the absorption spectral changes of NMTHN-TiO2 nanoparticles using Bensi-Hildebrand equation. The number of binding sites and the binding constant have been calculated from the relevant fluorescence data. Quenching of fluorescence of NMTHN by TiO2 could be due to a dynamic mode. Density Functional Theory (DFT) calculations also have been performed to study the charge distribution of NMTHN-TiO2 both in ground and excited states. The HOMO-LUMO analysis of NMTHN-TiO2 in the ground state has been made. (C) 2014 Elsevier B.V. All rights reserved.
[EN] LONG SHELF LIFE STABLE ORGANORUTHENIUM COMPLEXES AS (PRE)CATALYSTS FOR OLEFIN METATHESIS<br/>[FR] COMPLEXES D'ORGANORUTHÉNIUM STABLES À LONGUE DURÉE DE CONSERVATION EN TANT QUE (PRÉ)CATALYSEURS POUR LA MÉTATHÈSE D'OLÉFINES
申请人:[en]APEIRON SYNTHESIS S.A.
公开号:WO2022167944A1
公开(公告)日:2022-08-11
Embodiments in accordance with the present invention encompass an organorutheniumcompound of the formula I:(I)wherein X, Y, L1, L2, L3, R1and R2are as defined herein. Also disclosed herein are the use of organoruthenium compound of the formula I as (pre)catalysts for the olefin metathesis reactions, as well as to the process for carrying out the olefin metathesis reaction.