conjugated chain

Their UV spectra and fluorescence spectra have been studied. The results shows that they have high fluorescence quantum efficiency and their photoluminescence are different with different substituent groups or with different length of conjugated chain.

研究了此类分子化合物的紫外光谱和荧光光谱，具有较高的荧光量子效应，随着取代基和共轭链长度的不同，其光致发光也表现出一定的差别；

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The results indicate that with the increase of conjugated chain length, the maximum wavelength and nonlinear optical coefficients increase while the energy gap of the frontier molecular orbital decreases.

结果表明，中心对称的吡嗪衍生物随着体系共轭链的增长，最大吸收谱线波长增大，前线轨道能级差减小，体系的三阶非线性光学系数增大；

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In short, the influence of the substituents is insignificant. However, the remarkable effect was induced by the conjugated structure in the main chain.

取代基的影响较小，主链共轭结构对吸收光谱的影响明显。

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During the cooling process, polymer chains changed from disordered ( coil-like) to ordered ( rod-like) structures and caused the elongation of conjugated chain length.

在冷冻过程中，聚合物链从无规线团状态转变成棒状构象，从而增加了导电高分子的共轭链长。

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Rigid conjugated main chain is an important feature of conjugated polymers, it can formed large conjugated π electron system, so that the charge can transfer within the molecule. Thus, a single quencher molecule can cause a super-quenching of the entire polymer chain.

含有刚性共轭主链是共轭聚合物的重要特征，能在分子内形成大的共轭π电子体系，从而使电荷在分子内进行传输，单个猝灭剂分子就足以引起聚合物荧光的超猝灭。

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The influence of the molecular conjugated chain length and the electron-donating group on βμ was examined.

考察了分子共轭链长、给电子基团对βμ的影响。

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Results showed that the positions and intensities of the absorption peaks vary with the length of conjugated chain and the structures of carbyne.

结果表明两种不同结构的碳炔分子的红外振动吸收峰位存在差异，不同共轭碳链长度影响红外吸收峰的峰位和峰强度。

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Mechanism of the spectral adjustment with thiophene content was preliminarily discussed and it was believed that the energy level structures corresponding to the two kinds of conjugated chain segments were hybridized to a high extent.

初步探讨了共聚芴荧光谱色随噻吩含量变化的机制，认为无规共聚已使得两种共轭单元对应的能带结构发生相当程度的杂化。

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