Chemistry is an experimental science, and the best way to enjoy it and learn about it is performing experiments. 2213-63-0. Introducing a new discovery about 2213-63-0, Name is 2,3-Dichloroquinoxaline
Synthesis of a Zn-salen resorcinarene-based cavitand and its fluorescence response to nitro compounds
The synthesis, spectroscopic characterisation, conformational switching and fluorescence quenching efficiency of a resorcinarene-based cavitand containing Zn-salen (Zn-Cav) are reported. Synthesis of Zn-Cav was accomplished by the condensation of a quinoxaline derivatised with Zn-salen and a resorcinarene-based cavitand containing three quinoxalines. 1H NMR spectroscopy confirmed that in DMSO, chloroform and acetone Zn-Cav resides in the vase conformation. The molecular geometry of Zn-Cav selectively changes from vase to kite under acidic conditions. Detection by fluorescence quenching of nitro-containing molecules, such as 4-nitrotoluene, 2,4-dinitrotoluene and 2,3-dimethyl-2,3-dinitrobutane was explored by spectrofluorimetry. It was found that the fluorescence of Zn-Cav is efficiently quenched by nitroaromatic compounds.
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Quinoxaline – Wikipedia,
Quinoxaline | C8H6N1424 | ChemSpider