Vibration mode interaction in the Raman spectra of poly(1,6-bis[N-carbazolyl]-2,4-hexadiyne)
Vibration mode interaction in the Raman spectra of poly(1,6-bis[N-carbazolyl]-2,4-hexadiyne)
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聚(1,6-双[N-咔唑基]-2,4-己二炔)拉曼光谱中的振动模式相互作用
DOI：
10.1021/ma9902652
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发表时间：
1999
期刊：
影响因子：
5.5
通讯作者：
T. Fehn
中科院分区：
文献类型：
--
作者：
D. Bloor;T. Fehn
对聚二乙炔（1,6-二[n -咔唑基]-2,4-己二炔）的拉曼光谱进行了重新研究，并从主振和侧振两种振动模式的共振相互作用角度进行了分析。记录了部分聚合和完全聚合样品的傅里叶变换红外拉曼光谱。这些数据补充了在低温下部分聚合晶体的共振-拉曼光谱的早期研究。利用这些结果对主碳双键拉伸振动附近的多峰谱进行了分析。结合碳双键模式与咔唑基侧基的三种振动模式的共振相互作用的模型与现有的实验数据吻合得很好。
The Raman spectrum of the polydiacetylene, poly(1,6-bis[N-carbazolyl]-2,4-hexadiyne), has been reexamined and analyzed in terms of the resonant interaction of backbone and side-group vibration modes. Fourier transform infrared Raman spectra have been recorded for partially and fully polymerized samples. These data complement earlier studies of the resonance-Raman spectra of partially polymerized crystals conducted at low temperatures. The multipeaked spectrum, which is observed in the vicinity of the stretching vibration of the backbone carbon double bond, is analyzed utilizing these results. A model that incorporates the resonant interaction of the carbon double-bond mode with three vibrational modes of the carbazolyl side groups is shown to provide a good fit to the available experimental data.