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激基缔合物荧光
相关语句
  excimer fluorescence
    STUDY OF EXCIMER FLUORESCENCE SPECTRA OF POLYPHENYLENE SULFIDE SULFONE
    聚苯硫醚砜激基缔合物荧光光谱的研究
短句来源
    Study on Molecular Configuration of Poly(Styrene b methyl methacrylate) in Solution by Excimer Fluorescence Technique
    用激基缔合物荧光研究聚苯乙烯-聚甲基丙烯酸甲酯嵌段共聚物在溶液中的分子构型
短句来源
  “激基缔合物荧光”译为未确定词的双语例句
    The Formation and Application of Excimer of Pyrene Labels on Water-soluble Polymers
    “标记”芘的激基缔合物荧光在水溶性高分子研究中的应用
短句来源
    Excimer formation of sulfonated polystyrene in solutions
    磺化聚苯乙烯溶液的激基缔合物荧光光谱研究
短句来源
    This paper briefly introduces the formation and fluorescence emission of excimer of pyrene chromophore based on its steady\|state fluorescent spectra. The method and pattern for chemically labeled pyrene groups onto polymer chains are also illustrated. We discuss the excimer formation of pyrene labeled on water\|soluble polymers and review applications of the excimer spectra on studying hydrophobic interaction, electrostatic interaction, hydrogen bonding, complex and so on.
    首先介绍了芘的荧光发射光谱的特点及其激基缔合物荧光 ,然后给出了用芘标记高分子的各种方式和方法 ,讨论了水溶性高分子链上的“标记”芘形成激基缔合物的原因 ,评述了芘标记高分子的激基缔合物荧光在水溶性高分子疏水相互作用、静电相互作用、氢键、络合等研究中的应用 ,也介绍了芘标记激基缔合物荧光在高分子凝胶体积相变、分子链运动等领域的研究进展
短句来源
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  excimer fluorescence
In addition to these emissions, the excimer fluorescence is often observed depending on the molecular structure of the siloxanes.
      
The experimental results were explained in terms of solute radical ion recombination leading to the Py monomer and excimer fluorescence.
      
We report new measurements of the near infrared (NIR) Xe2* excimer fluorescence in an electron-beam-excited Ar (90%)-Xe (10 %) mixture at room temperature.
      
Previous measurements up to a density N≈2×1026?m-3 discovered a broad excimer fluorescence band at ≈7800?cm-1, whose center is red-shifted by increasing N [A.F.
      
Fluorescence spectroscopic studies have shown that the BPDE molecules bound to DNA can interact in their photo-excited state giving strong excimer fluorescence when bound to poly(dGdC) · poly(dGdC).
      
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The spectroscopic and Photochemical properties of ethyl p-(N,N-dimethylamino)cinnamate(DMAC)in dodecanoic acid(LA)aggregate were reported.DMAC displays typical intramolecular charge transfer character in the absorption and emission spectra. The excimer fluoresceuce of DMAC Was observed in the presence of dodecanoic acid.The emissionintensity increases with the increaise of concentration of DMAC. The photodimerizationrate of DMAC becomes much greater in the dodecalloic acid aggregate than that in common solution....

The spectroscopic and Photochemical properties of ethyl p-(N,N-dimethylamino)cinnamate(DMAC)in dodecanoic acid(LA)aggregate were reported.DMAC displays typical intramolecular charge transfer character in the absorption and emission spectra. The excimer fluoresceuce of DMAC Was observed in the presence of dodecanoic acid.The emissionintensity increases with the increaise of concentration of DMAC. The photodimerizationrate of DMAC becomes much greater in the dodecalloic acid aggregate than that in common solution. The results obtained from monitoring reaction process by using fluorescencespectroscopy show that the excimer of DMAC possesses higher photochemical activity thanthat of DMAC monomer.

本文报道了p-(N,N-二甲氨基)肉桂酸乙酯(DMAC)在十二酸(LA)聚集体中的光谱和光化学性质.这种肉桂酸衍生物的吸收和发射光谱表现出典型的分子内电荷转移的特征,在十二酸存在下,观察到DMAC激基缔合物荧光,荧光强度随DMAC浓度增加而增加,与普通溶液中的反应相比,十二酸聚集体中的DMAC具有较大的光二聚反应速度.用荧光光谱跟踪反应的结果表明,DMAC激基缔合物具有较DMAC单体更高的光化学活性。

The St / DVB copolymers containing pyrene groups were synthesized by the methods of copolymerization and functionalization, which' were characterized by fluorescence,Py-GC and PyGc-Ms. The fluorescence of the polymers showed the monomer band and excimer band of pyrene groups. The methylpyrenyl and styrene trimer peaks in the Py-GC of the polymers were the signs of St / DVB copolymers containing pyrene groups, which were used to calculate the contents of pyrene groups in the polymers relatively.

本文首次通过共聚方法和功能基化方法合成了芘标记苯乙烯/二乙烯苯共聚物,用稳态荧光光谱、裂解色谱、裂解色谱-质谱等方法对芘标记共聚物进行了详细地表征.结果表明,通过控制芘标记单体的投料或功能基化反应时间,可以将一定量的芘基标记到苯乙烯/二乙烯苯共聚物中,其荧光光谱显示了芘基的单体荧光发射和激基缔合物荧光发射;共聚物裂解色谱的甲基芘峰和苯乙烯三聚体峰反映了芘基和交联聚苯乙烯骨架的特征,据此可建立由甲基芘相对峰面积计算芘基相对含量的方法.

The appearence of the new fluorescence peak at about 570 nm demonstratesexciplex formation between the singlet states of 9-vinyl anthracene and p-H, M-dimethy-lamino stytene.With increasing the polarity of solvents, the red-shift of the emission wavelength occurs and the fluorescence quantum yield of the exciplex decreases.For example,thefluorescence peak is at 550 nm in totuene and at 595 nm in butanone. The fluorescence qua-tum yields in totuene and in butanone are 0. 053 and 0 respectively.Both the relative...

The appearence of the new fluorescence peak at about 570 nm demonstratesexciplex formation between the singlet states of 9-vinyl anthracene and p-H, M-dimethy-lamino stytene.With increasing the polarity of solvents, the red-shift of the emission wavelength occurs and the fluorescence quantum yield of the exciplex decreases.For example,thefluorescence peak is at 550 nm in totuene and at 595 nm in butanone. The fluorescence qua-tum yields in totuene and in butanone are 0. 053 and 0 respectively.Both the relative yield ofthe photocycloaddition dimer and the ratio of the relative yields of the trans and cis dimers decrease with increasing the polarity of solvents. For example,the relative yields of the dimerare 1.0 in totuene and 0.04 in butanone respectively.The ratio of the relative yields of transand cis dimers are 0.54 and 0 in totuene and butanones, respectively. In addition, the exciplex intermediate mechanism was suggested for the photocycloaddition between 9-vinyl anthracene and 9-N,N-dimethylamino styrene.

研究了对-N,N-二甲氨苯乙烯和蒽乙烯生成的激基缔合物在不同极性溶剂中的荧光特性,发现其荧光发射波长随溶剂的极性增大向长波方向移动,且发现激基缔合物荧光量子产率的大小决定对-N,N-二甲氨苯乙烯和蒽乙烯的光环加成产物的产率。其中反式产物的相对产率随溶液极性增大而降低,并进一步探讨了此光环加成反应的机理。

 
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