Li Li, Jianzheng Li, Hongyan Wang
Aug 1, 2012
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Journal
Chinese Journal of Chemistry
Abstract
Four new 1,8-naphthyridine derivatives were synthesized by reacting the parent molecules with aldehydes and characterized. Two of the compounds have completely new and unusual skeletons, and display red-fluorescence emissions and two-photon absorption. Their structures were determined using MS, 1D and 2D NMR, and density functional theory calculations. The structural investigations of 2-methyl-1,8-naphthyridine hydrochloride and hydrobromide showed that abundant hydrogen-bonds and p- p interactions lead to extended networks.