Resonance Raman Spectra of Linear Polymer Molecule
ZHANG Xue2, SUN Mei-jiao2, LI Shuo2, LIU Tie-cheng1, 2*, SUN Cheng-lin1, 2, LI Zuo-wei2
1. State Key Laboratory of Superhard Materials, Jilin University, Changchun 130012, China 2. College of Physics，Jilin University，Changchun 130012，China
Abstract：The present paper summarizes the characteristics of resonance Raman spectra of the linear polymer molecule, and its relations with the molecular structure, including: electronic spectra(ultraviolet-visible absorption spectrum), Raman spectra characteristics and its relations with external field; Modulation relation between the electron energy gap and CC atom vibration; Several experimental results were obtained: The UV-visible absorption spectra are red-shifted with decreasing temperature, increasing solvent density and reducing solution concentration, and because the linear polymer molecule has high structured order, decreasing π electron energy gap; extended π electronic delocalization, large effective conjugation length, large intensity of the Raman activity, Raman spectrum are red-shifted, with large scattering cross section. “Amplitude modes” are the ideal theory models to study the linear polymer molecule.
Key words：Linear polymer molecule;Resonance Raman spectroscopy;Electron energy gap
张 雪2，孙美娇2，李 硕2，刘铁成1，2*，孙成林1，2，里佐威2 . 线性多烯分子的共振拉曼光谱 [J]. 光谱学与光谱分析, 2014, 34(05): 1275-1278.
ZHANG Xue2, SUN Mei-jiao2, LI Shuo2, LIU Tie-cheng1, 2*, SUN Cheng-lin1, 2, LI Zuo-wei2 . Resonance Raman Spectra of Linear Polymer Molecule . SPECTROSCOPY AND SPECTRAL ANALYSIS, 2014, 34(05): 1275-1278.
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