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Synthesis, solution and solid-state fluorescence of 2-diethylaminocinchomeronic dinitrile derivatives†
O. V. Ershov,M. Yu. Ievlev,M. Yu. Belikov,A. I. Naidenova,V. N. Maksimova,V. A. Tafeenko
RSC Advances Pub Date : 07/12/2017 00:00:00 , DOI:10.1039/C7RA06217F
Abstract

A facile approach to the synthesis of novel 2-diethylaminocinchomeronic dinitriles, which are found to be fluorescent both in the solution and in a solid states, was developed. Absorption, fluorescence and solvatochromic properties as well as a crystal structure of the synthesized compounds were investigated. It was found that the 2-diethylaminocinchomeronic dinitrile derivatives with methoxy groups in the aryl moiety possess the most intensive emission in nonpolar solvents with fluorescence quantum yields up to 0.59.

Graphical abstract: Synthesis, solution and solid-state fluorescence of 2-diethylaminocinchomeronic dinitrile derivatives
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