Synthesis and Spectroscopic Properties of Novel Fluorescent Compounds Containing Bis-pyrazole Ring

• Published in: Journal of fluorescence Vol. 24; no. 4; pp. 1149 - 1157
• Main Authors: Ren, Tiegang, Wang, Jie, Li, Guihui, Li, Yongzhe
• Format: Journal Article
• Language: English
• Published: Boston Springer US 01-07-2014
• Subjects: Analytical Chemistry; Biochemistry; Biological and Medical Physics; Biomedical and Life Sciences; Biomedicine; Biophysics; Biotechnology; Chemical compounds; Compound A; Derivatives; Emission; Fluorescence; Fluorescent Dyes - chemical synthesis; Fluorescent Dyes - chemistry; Magnetic Resonance Spectroscopy; Mass Spectrometry; Molecular Structure; Original Paper; Protons; Pyrazole; Pyrazoles - chemical synthesis; Pyrazoles - chemistry; Spectra; Spectrometry, Fluorescence; Spectrophotometry, Ultraviolet; Spectroscopy, Fourier Transform Infrared; Synthesis; Pyrazole group; Synthesis; Ion recognition; Pectroscopic properties; Co; Pyrazoline derivative
• ISSN: 1053-0509; 1573-4994
• DOI: 10.1007/s10895-014-1395-y

A series of pyrazoline derivatives containing pyrazole group were synthesized and characterized by means of
1
H NMR, FT-IR, MS and elemental analysis, and their UV–vis absorption behavior and fluorescent properties were also measured. Moreover, the influence of metal ions on spectral properties of synthetic products was examined with compound
A
5
as an example. It has been found that all synthetic pyrazoline derivatives show two remarkable absorption peaks at about 260 and 360 nm and the maximum emission peak at 445–467 nm. Especially, the joined of Co
2+
can quench the fluorescence of compound
A
5
obviously.