1239986-71-0Relevant academic research and scientific papers
A rhodamine-based dual chemosensor for the visual detection of copper and the ratiometric fluorescent detection of vanadium
Huo, Fang-Jun,Su, Jing,Sun, Yuan-Qiang,Yin, Cai-Xia,Tong, Hong-Bo,Nie, Zong-Xiu
, p. 50 - 55 (2010)
The optical properties of a novel, rhodamine-based derivative, synthesized by reacting rhodamine hydrazide and 5-chlorosalicylaldehyde in ethanol, were investigated in methanol:HEPES solution. The novel sensor displayed selectivity for Cu2+, as evidenced by a colourless to dark red colour change, which was characterized using UV-visible spectroscopy and which also allowed visual detection of Cu2+. In contrast, selectivity towards VO2+ was determined from changes in the emission spectra in the nanomolar range. This represents the first reported rhodamine-based sensor capable of detecting both Cu2+ and VO2+ using two different modes. Crown Copyright
Preparation and application of N-(2-hydroxy-5-chlorobenzene)ylrhodamine B hydrazide
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Paragraph 0027; 0030; 0033; 0036; 0037; 0039; 0040, (2018/10/19)
Belonging to the technical field of inorganic material synthesis and application, the invention provides preparation and application of N-(2-hydroxy-5-chlorobenzene)ylrhodamine B hydrazide. The invention adopts liquid-phase synthesis method. The method includes: firstly adding excess hydrazine hydrate into a rhodamine B ethanol solution, carrying out heating reflux reaction to obtain an initial product, then employing concentrated hydrochloric acid and a sodium hydroxide solution respectively to adjust the reaction system to neutral, thus obtaining a reduced intermediate product rhodamine B hydrazine; then further reacting the rhodamine B hydrazine with 5-chlorosalicylaldehyde in methanol, and conducting recrystallization to obtain N-(2-hydroxy-5-chlorobenzene)ylrhodamine B hydrazide for rapid, sensitive and highly selective recognition or even trace detection of zinc ions. The compound has the advantages of simple synthesis process, mild reaction conditions, small reagent dosage, lowmaking cost, little environmental pollution, and good optical properties and biocompatibility, and can be developed as a brand new fluorescent probe for zinc ion recognition in organisms.
