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Measurements of the difference absorption spectra were made for 12 phenols and 11 aromatic amines. Aqueous solutions of the same concentration and pH values 8-13 and 1-2 were measured against each other. The difference spectra were found to have a similar run within the group of compounds: monohydroxyl phenols, naphthols, quinolines, aniline and its derivatives and pyridine and its derivatives. The spectra reflect the changes in the conjugated bond systems caused by shifts in acid-base equilibria of the compounds examined.
The design and synthesis of related molecules that are more effective, more selective, and less toxic than aspirin are important objectives of biomedical research.108-47-4, If a proposed mechanism predicts the wrong experimental rate law, however, the mechanism must be incorrect.Welcome to check out more blogs about 108-47-4, in my other articles.
Reference：
Chiral nitrogen ligands in late transition metal-catalysed asymmetric synthesis—I. Addressing the problem of ligand lability in rhodium-catalysed hydrosilations,
Nitrogen-Containing Ligands for Asymmetric Homogeneous and Heterogeneous Catalysis