Chemistry is the science of change. But why do chemical reactions take place? Why do chemicals react with each other? The answer is in thermodynamics and kinetics.In a document type is Article, the author is Dix, Johannes Peter and a compound is mentioned, 14098-44-3, Benzo-15-crown-5, introducing its new discovery. 14098-44-3
Ligand Structure and Complexation, L. Ion-selective Crown Ether Dyes
New dyes with an ion-selective crown ether system, the complexation of which with cations influences the ground and excited states of the chromophore to a different extent, have been synthesized.Different types of alkali/alkaline earth metal ions cause different colour changes, significant effects being normally observed with cations fitting selectively into the crown ether units with cromophores of azo dyes (1-3, 8a, b, 22, 24), naphthol blue (10), phenol blue (11), stilbene dyes (14a, b), (mero)cyanines (16, 17a, b), and of Koenig’s salt (19, 20).Chromophores bound to open chain oligoethylene glycol ethers are also described.The remarkable changes of light absorption in the course of complexation of some of the dyes are discussed in terms of donor participation of the auxochrome or antiauxochrome.
But sometimes, even after several years of basic chemistry education, it is not easy to form a clear picture on how they govern reactivity! Read on for other articles about 14098-44-3!, 14098-44-3
Reference£º
Chiral Catalysts,
Chiral catalysts – SlideShare