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A series of novel heterocycle-based chromophores containing oxazolone, pyrazolone or pyrazoline moieties were synthesized under microwave irradiation and characterized using elemental analysis, IR, 1 H NMR spectroscopy and mass spectrometry. The crystal structures of two of the dyes were found, using single crystal X-ray crystallography, to be monoclinic, space group P2 1 /c types;...
Novel, nitrogen-containing heterocyclic chromophores based on either 1,2,4-triazine or an imidazole core were synthesized using a three-component, one-pot reaction under microwave irradiation. Structures were verified by 1 H NMR, IR, MS and elemental analyses while crystal structure was determined using X-ray diffraction. The two-photon absorption and two-photon upconverted blue fluorescent...
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