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- W1977890033 abstract "Two new salicylaldehydes derivatives, 5-fluoro-2-hydroxybenzaldehyde and 9-formyl-8-hydroxyjulolidine, were reacted with rhodamine hydrazine. The products were characterized by electrospray ionization mass spectrometry, nuclear magnetic resonance spectroscopy and X-ray single crystal diffraction. The optical properties of the compounds were investigated in a methanol–4-(2-hydroxyethyl)-1-piperazineethanesulfonic acid solution. 5-Fluoro-2-hydroxybenzaldehyde rhodamine hydrazone (compound 1) was selective toward Cu2+ as shown by a colorless to yellow color change. This was characterized by UV–vis spectroscopy and can be used for the visual detection of Cu2+. The selectivity of 9-formyl-8-hydroxyjulolidine rhodamine hydrazone (compound 2) toward Cu2+ was determined by changes in UV–vis and emission spectra. The results show that compound 2 as a fluorescence probe is more sensitive than compound 1 as a UV–vis probe. Furthermore, compound 2 can be used for bioimaging." @default.
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- W1977890033 date "1974-10-01" @default.
- W1977890033 modified "2023-09-23" @default.
- W1977890033 title "Effets du pH sur la coloration par l'acridine orange des chromosomes humains" @default.
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- W1977890033 doi "https://doi.org/10.1016/0014-4827(74)90263-8" @default.
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