Pyridine is diamagnetic and has a diamagnetic susceptibility of −48.7 × 10−6 cm3·mol−1.The molecular electric dipole moment is 2.2 debyes. 31181-90-5, formula is C6H4BrNO, Name is 5-Bromopicolinaldehyde. TThe standard enthalpy of formation is 100.2 kJ·mol−1 in the liquid phase and 140.4 kJ·mol−1 in the gas phase. Name: 5-Bromopicolinaldehyde.
Teng, Teng;Li, Kai;Cheng, Gang;Wang, Yuan;Wang, Jian;Li, Jiafang;Zhou, Changjiang;Liu, He;Zou, Taotao;Xiong, Jinfan;Wu, Chao;Zhang, Hong-Xing;Che, Chi-Ming;Yang, Chuluo research published 《 Lighting Silver(I) Complexes for Solution-Processed Organic Light-Emitting Diodes and Biological Applications via Thermally Activated Delayed Fluorescence》, the research content is summarized as follows. Luminescent coinage metal complexes have shown promising applications as electroluminescent emitters, photocatalysts/photosensitizers, and bioimaging/theranostic agents, rendering them attractive alternatives to transition metal complexes based on iridium, ruthenium, and platinum that have extremely low earth abundance. In comparison to the widely studied Au(I) and Cu(I) complexes, Ag(I) complexes have seldom been explored in this field because of their inferior emission properties. Herein, we report a novel series of [Ag(N^N)(P^P)]PF6 complexes exhibiting highly efficient thermally activated delayed fluorescence by using easily accessible neutral diamine ligands and com. available ancillary diphosphine chelates. The photoluminescence quantum yields (PLQYs) of the Ag(I) emitters are ≤0.62 in doped films. The high PLQY with a large delayed fluorescence ratio enabled the fabrication of solution-processed organic light-emitting diodes (OLEDs) with a high maximum external quantum efficiency of 8.76%, among the highest values for Ag(I) emitter-based OLEDs. With superior emission properties and an excited state lifetime in the microsecond regime, together with its potent cytotoxicity, the selected Ag(I) complex has been used for simultaneous cell imaging and anticancer treatment in human liver carcinoma HepG2 cells, revealing the potential of luminescent Ag(I) complexes for biol. applications such as theranostics. Four silver(I) complexes containing a diphosphoine ligand and an easily synthesized donor-acceptor type diimine ligand were prepared Spectroscopic and theor. studies revealed their efficient photoluminescence via the thermally activated delayed fluorescence mechanism. The selected silver complex afforded good performance in a solution-processed electroluminescent device. The silver complex also demonstrated promising in vitro anticancer activity in human liver carcinoma HepG2 cells, and its location in the cytoplasm instead of the nucleus was visualized by confocal fluorescence imaging.
Name: 5-Bromopicolinaldehyde, 5-Bromopyridine-2-carbaldehyde is a useful research compound. Its molecular formula is C6H4BrNO and its molecular weight is 186.01 g/mol. The purity is usually 95%.
5-Bromopyridine-2-carbaldehyde is a water soluble organic molecule that has been shown to inhibit the mitochondrial respiratory chain. It is a structural analog of the natural substrate for mitochondrial cytochrome c oxidase, 5-aminolevulinic acid. This compound has been shown to be selective against cancer cells and has anti-viral properties. The photophysical properties of 5-bromopyridine-2-carbaldehyde have been studied extensively. The fluorescence quantum yield of this molecule in aqueous solution is 0.06%., 31181-90-5.