Chemistry is traditionally divided into organic and inorganic chemistry. Computed Properties of C9H6N2. The former is the study of compounds containing at least one carbon-hydrogen bonds.In a patent，Which mentioned a new discovery about 16136-52-0
The absorption and fluorescence of indole and n-cyanoindole derivatives are modeled in the gas phase and aqueous solution using high-level quantum mechanical methods and implicit solvation. These molecules have been experimentally examined as fluorescent probes for studying the structure, function, and hydration status of proteins and it is found that substitution of the cyano group on different positions of indole has diverse effects on the absorption and fluorescence spectra in water solvent. Our calculations predict that in absorption the Lb excited state is lower in energy than the La state for all positional isomers in the gas phase and in solution. In fluorescence, however, water solvent causes level inversion leading to emission from the La excited state for indole and n-cyanoindole derivatives with the cyano on the six-membered ring. However, when cyano substitution is on the five-membered ring, La is not stabilized enough and emission occurs from the Lb excited state. In addition, we predict that the relatively high fluorescence intensity of 4-cyanoindole in aqueous solution results from minimization of radiationless decay pathways since both absorption and fluorescence occur from the lowest excited state (unlike the other derivatives).
Note that a catalyst decreases the activation energy for both the forward and the reverse reactions and hence accelerates both the forward and the reverse reactions.name: 4-Cyanoindole, you can also check out more blogs about16136-52-0
Reference：
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles