Exploring aggregation‐induced emission through tuning of ligand structure for picomolar detection of pyrene
作者:Milan Ghosh、Sabyasachi Ta、Sisir Lohar、Sudipta Das、Paula Brandão、Vitor Felix、Debasis Das
DOI:10.1002/jmr.2771
日期:2019.5
Tuning of ligandstructuresthrough controlled variation of ring number in fused-ring aromatic moiety appended to antipyrine allows detection of 7.8 × 10-12 M pyrene via aggregation-induced emission (AIE) associated with 101-fold fluorescence enhancement. In one case, antipyrine unit is replaced by pyridine to derive bis-methylanthracenyl picolyl amine. The structures of four molecules have been confirmed
通过附加到安替比林上的稠环芳族部分中环数的受控变化来调节配体结构,可以通过与101倍荧光增强相关的聚集诱导发射(AIE)检测7.8×10-12 M pyr。在一种情况下,将安替比林单元替换为吡啶以衍生出双甲基蒽基甲基吡啶胺。通过单晶X射线衍射分析已经确认了四个分子的结构。其中,pyr-安替比林共轭物(L)受到pyr触发的光致电子转移(PET)抑制,从而导致水助AIE。
Synthesis of sterically hindered antipyrines for intramolecularcharge transfer facilitated sensing
作者:Linyi Bian、Gang Sun、Yuxi Sun、Weihua Tang
DOI:10.1002/poc.2948
日期:2012.12
A new series of stericallyhinderedantipyrine derivatives have been synthesized by Schiff base condensation for potential fluorescence sensing applications. Their optical, thermal, and electrochemical properties were fully characterized. Broad absorption spectra were observed as a result of the strong intramolecular charge transfer between antipyrine and stericallyhindered conjugated moiety. Reversible
Cu(<scp>ii</scp>) complex of a new isoindole derivative: structure, catecholase like activity, antimicrobial properties and bio-molecular interactions
作者:Sangita Adhikari、Sisir Lohar、Babli Kumari、Aparna Banerjee、Rajib Bandopadhyay、Jesús Sanmartín Matalobos、Debasis Das
DOI:10.1039/c6nj02193j
日期:——
An isoindole based Cu(II) complex, [Cu(PICPH)Cl2], was synthesized in situ by reacting copper(II) chloride with a pyridine derived ligand, PICPH. The complex was characterized by spectroscopic techniques while its structure was confirmed by single crystal X-ray diffraction analysis. The complex has a trigonal bipyramid geometry containing both five- and seven-member chelate rings. It shows catecholase-like