ICCAS OpenIR
Synthesis and Spectrum of Novel Pyrazoline Fluorescent Compounds
Liu Qiu-jun1; Gao Lei1; Wang Lei1; Xie Zhi-yuan2; Li Dong-feng1
2009-10-01
Source PublicationSPECTROSCOPY AND SPECTRAL ANALYSIS
ISSN1000-0593
Volume29Issue:10Pages:2810-2814
AbstractPyrazoline derivatives have been used widely in dyeing industry as fluorescent whitening agents due to their excellent capability. According to Schellhammer theory of the relation between chemical structure and fluorescent quality, six new fluorescent compounds were designed and synthesized which contained the benzothiazole group in the I-pyrazoline, the indole group in the 3-pyrazoline and the derivatives of phenyl in the 5-pyrazoline. The structure of target compounds was confirmed by IR, (1)H NMR, MS and elementary analysis. The fluorescence spectra showed that these compounds had good fluorescence. They could absorb ultraviolet light at near 353 nm. The fluorescence maximum emission wavelengths were about 430-443 nm. It was a kind of promising fluorescence compounds. The largest fluorescence emission wavelength and the fluorescence intensity were related to the substituted group of the compounds. When the 6-Br group was introduced into benzothiazole, the fluorescence emission wavelength exhibited a blue shift, and the fluorescence intensity increased. Otherwise; the CH(3) group was introduced into benzothiazole, the fluorescence emission wavelength red-shift occurred, and the intensity was lower. The fluorescence quantum yield of the compounds was little affected by the substituted group and polarity of the solvent. The relative fluorescence intensity and fluorescence quantum yield were not directly related.
KeywordBenzothiazole Indole Pyrazoline Fluorescent Compound
DOI10.3964/j.issn.1000-0593(2009)10-2810-05
Indexed BySCI
Language英语
WOS IDWOS:000270346100052
PublisherOFFICE SPECTROSCOPY & SPECTRAL ANALYSIS
Citation statistics
Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/66836
Collection中国科学院化学研究所
Corresponding AuthorLi Dong-feng
Affiliation1.Changchun Univ Technol, Sch Chem & Life Sci, Changchun 130012, Peoples R China
2.Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China
Recommended Citation
GB/T 7714
Liu Qiu-jun,Gao Lei,Wang Lei,et al. Synthesis and Spectrum of Novel Pyrazoline Fluorescent Compounds[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS,2009,29(10):2810-2814.
APA Liu Qiu-jun,Gao Lei,Wang Lei,Xie Zhi-yuan,&Li Dong-feng.(2009).Synthesis and Spectrum of Novel Pyrazoline Fluorescent Compounds.SPECTROSCOPY AND SPECTRAL ANALYSIS,29(10),2810-2814.
MLA Liu Qiu-jun,et al."Synthesis and Spectrum of Novel Pyrazoline Fluorescent Compounds".SPECTROSCOPY AND SPECTRAL ANALYSIS 29.10(2009):2810-2814.
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