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分子极性对类胡萝卜素共振拉曼光谱的影响
  • ISSN号：1000-3290
  • 期刊名称：物理学报
  • 时间：0
  • 页码：-
  • 分类：O645.12[理学—物理化学;理学—化学]
  • 作者机构：[1]吉林大学超硬材料国家重点实验室,长春130012, [2]吉林大学物理学院,长春130012
  • 相关基金：国家自然科学基金（批准号：10974067）、新世纪优秀人才支持计划（批准号：NCET-11-0201）和吉林省创新团队（批准号：20121806）资助的课题.
  • 相关项目：类胡萝卜素分子结构有序对性能的影响
作者： 吴咏玲|曲冠男|刘天元|孙成林|门志伟|范丽梅|里佐威|
关键词： 溶剂效应, 拉曼散射截面, 线性多烯分子, solvent effects, Raman scattering cross-section, linear polyenes molecules
中文摘要：

测量了非极性分子β胡萝卜素和极性分子角黄素,在非极性溶剂CS2和极性溶剂1,2二氯乙烷中243—293 K的温度范围内的共振拉曼光谱.结果表明,溶质和溶剂的极性对拉曼光谱影响很大.非极性分子β胡萝卜素在非极性溶剂CS2中的拉曼散射截面最大,线宽最窄,而极性分子角黄素在极性溶剂1,2二氯乙烷中的拉曼散射截面最小,线宽最大.用溶剂效应及线性多烯分子的“相干弱阻尼电子-晶格振动”,“有效共轭长度”模型给予了解释.

英文摘要：

The resonance Raman spectra of nonpolar molecule all-trans-β-carotene and polar molecule canthaxanthin in nonpolar CS2 and polar 1,2-dicholoroethane in a temperature range from 243K to 293K are measured. The results show that polarities of the solute and solvent have a great effect on Raman spectrum. Raman scattering cross-section of nonpolar all-trans-β-carotene in nonpolar solvent CS2 is biggest and its bandwidth is narrowest. Raman scattering cross-section of polar canthaxanthin in polar solvent 1,2-dicholoroethane is smallest and its bandwidth is widest. The experimental phenomena are explained by solvent effects, coherent weakly damped electron-lattice vibration and effective conjugated length.

同期刊论文项目
类胡萝卜素分子结构有序对性能的影响
期刊论文 67
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期刊信息
  • 《物理学报》
  • 北大核心期刊（2011版）
  • 主管单位:中国科学院
  • 主办单位:中国物理学会 中国科学院物理研究所
  • 主编：欧阳钟灿
  • 地址：北京603信箱(中国科学院物理研究所)
  • 邮编：100190
  • 邮箱：apsoffice@iphy.ac.cn
  • 电话：010-82649026
  • 国际标准刊号：ISSN：1000-3290
  • 国内统一刊号：ISSN：11-1958/O4
  • 邮发代号:2-425
  • 获奖情况:
  • 1999年首届国家期刊奖,2000年中科院优秀期刊特等奖,2001年科技期刊最高方阵队双高期刊居中国期刊第12位
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  • 被引量:49876