Pyridine has a conjugated system of six π electrons that are delocalized over the ring. 31181-90-5, formula is C6H4BrNO, Name is 5-Bromopicolinaldehyde. The molecule is planar and, thus, follows the Hückel criteria for aromatic systems. Category: pyridine-derivatives.
Wang, Jinglan;Chai, Chaoyang;Xu, Shengxian;Zhao, Feng;Xia, Hongying;Wang, Yibo research published 《 Modulation of photophysical properties of copper(I) complexes containing pyridyl-imidazole (PyIm) ligands functionalized by naphthyl, phenanthryl, and anthryl groups》, the research content is summarized as follows. A series of Cu(I) pyridyl-imidazole (PyIm) complexes with different aryl groups (Ar = naphthalene (P2), phenanthrene (P3), and anthracene (P4)) attached on the pyridyl ring were synthesized and characterized. The influence of these organic chromophore groups on the photophys. properties of the resulting complexes is investigated. Complexes P2–P4 show stronger light harvesting efficiencies in the visible region compared with the parent complex P1. The emitting state of complex P1 originates from the 3MLCT state with some 3LLCT character, while complexes P2 and P3 predominantly exhibit the 3LLCT character. For complex P4, the triplet emitting state is dominated by the 3(π → π) state localized on the anthryl moiety, together with a lesser contribution form the 3LLCT state. These changes in the photophys. properties were rationalized by DFT and TDDFT methods.
Category: pyridine-derivatives, 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.