新型2-氧代-1,4-二取代-1,2,5,6-四氢苯并[h]喹啉-3-甲腈染料的合成、表征及光谱行为
Synthesis, characterization and spectroscopic behavior of novel 2-oxo-1,4-disubstituted-1,2,5,6-tetrahydrobenzo[h]quinoline-3-carbonitrile dyes.
作者信息
Khan Salman A, Asiri Abdullah M, Al-Thaqafy Saad H, Faidallah Hassan M, El-Daly Samy A
机构信息
Department of Chemistry, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia.
Department of Chemistry, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia; Center of Excellence for Advanced Materials Research (CEAMR), King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia.
出版信息
Spectrochim Acta A Mol Biomol Spectrosc. 2014 Dec 10;133:141-8. doi: 10.1016/j.saa.2014.05.013. Epub 2014 May 16.
Two synthetic pathways were adopted to synthesize the target 2-oxo-1,4-disubstituted-1,2,5,6-tetrahydro-benzo[h]quinoline-3-carbonitriles. Structure of the synthesized compounds has been characterized based on FT-IR, (1)H NMR, (13)C NMR and elemental analyses. UV-Vis and fluorescence spectroscopy measurements provided that all compounds are good absorbent and fluorescent. Fluorescence polarity study demonstrated that these compounds were sensitive to the polarity of the microenvironment provided by different solvents. In addition, spectroscopic and physicochemical parameters, including singlet absorption, extinction coefficient, Stokes shift, oscillator strength and dipole moment were investigated in order to explore the analytical potential of synthesized compounds.
采用两条合成路线来合成目标化合物2-氧代-1,4-二取代-1,2,5,6-四氢苯并[h]喹啉-3-甲腈。通过傅里叶变换红外光谱（FT-IR）、核磁共振氢谱（¹H NMR）、核磁共振碳谱（¹³C NMR）和元素分析对合成化合物的结构进行了表征。紫外可见光谱和荧光光谱测量表明所有化合物都是良好的吸收剂和荧光剂。荧光极性研究表明这些化合物对不同溶剂提供的微环境极性敏感。此外，还研究了包括单线态吸收、消光系数、斯托克斯位移、振子强度和偶极矩在内的光谱和物理化学参数，以探索合成化合物的分析潜力。
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