Ye, Zhao et al. published their research in Journal of Photochemistry and Photobiology, A: Chemistry in 2021 | CAS: 4769-96-4

6-Nitro-1H-indole (cas: 4769-96-4) belongs to indole derivatives. Indole exists overwhelmingly in the 1H-indole form as do other simple indoles. Due to this activity, the indole ring system has become an important component or intermediate in the synthesis of heterocycles.Product Details of 4769-96-4

Electron transfer from guanosine to the lowest triplet excited state of 4-nitroindole through hydrogen-bonded complex was written by Ye, Zhao;Du, Yong;Pan, Xinghang;Zheng, Xuming;Xue, Jiadan. And the article was included in Journal of Photochemistry and Photobiology, A: Chemistry in 2021.Product Details of 4769-96-4 This article mentions the following:

The photochem. reaction of 4-nitroindole and guanosine was studied with the transient absorption spectroscopy as guanine is an effective hole trap during the charge transfer in DNA, and 4-nitroindole is a universal base. Excitation of 4-nitroindole generates the lowest triplet excited state 4-nitroindole (3HN-NO2) within 10 ns in the quantum yield 0.41. 3HN-NO2 has increased basicity compared to its ground state. Consequently, its nitro group exhibits the hydrogen bond accepting ability. 3HN-NO2 can interact with guanosine (G) to form the hydrogen-bonded 3HN-NO2…G complex with the rate constant k = (8.7 卤 0.3)x109 M-1路s-1. The hydrogen-bonded complex is identified based on the blue shift evolvement of the absorption maximum of 3HN-NO2 in alc. solutions The reduction potential of 3HN-NO2 is Ered(3HN-NO2) = 1.23 V vs. SCE. The electron transfer occurs in the 3HN-NO2…G complex and generates G+bul and HN-NO2-鈥?followed by the proton transfer from N1 and N2 of G producing radicals HN-NO2H鈥? G(N1-H)鈥?and G(N2-H)鈥? In the experiment, the researchers used many compounds, for example, 6-Nitro-1H-indole (cas: 4769-96-4Product Details of 4769-96-4).

6-Nitro-1H-indole (cas: 4769-96-4) belongs to indole derivatives. Indole exists overwhelmingly in the 1H-indole form as do other simple indoles. Due to this activity, the indole ring system has become an important component or intermediate in the synthesis of heterocycles.Product Details of 4769-96-4

Referemce:
Indole alkaloid derivatives as building blocks of natural products from聽Bacillus thuringiensis聽and聽Bacillus velezensis聽and their antibacterial and antifungal activity study,
Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles