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学科主题: 物理化学
题名: pH -Dependent Chirality of L-Proline studied by Raman Optical Acticity and DFT calculation
作者: Qiu S(邱石) ;  Feng ZC(冯兆池) ;  Li C(李灿) ;  Li GN(李冠娜) ;  Wang P(王鹏) ;  Zhou J(周俊)
会议文集: CD2011 THE 13TH International Confenrence on Chiroptical Spectroscopy
会议名称: CD2011 THE 13TH International Confenrence on Chiroptical Spectroscopy
会议日期: 2011-7-24
出版日期: 2011
会议地点: Oxford
通讯作者: 李灿 ;  冯兆池
出版者: 待补充
出版地: 待补充
合作性质: 分会口头报告
部门归属: 503
主办者: 英国国家同步辐射实验室Diamond
摘要: The characteristic pyrrolidine ring structure of Proline (Pro) and its conformational flexibility are important to the biological function in peptides and proteins. Raman Optical Activity (ROA) spectroscopy is used to carefully study the chirality of L-Pro in aqueous solution with different pH values. Raman shifts and ROA intensities are found to be directly correlated with the acidic or basic environment. The dramatic changes of the distributions and the dispersion of the ROA intensities indicate that an acidic or basic environment not only leads to the simple abstraction or addition of a proton but also changes the electron delocalization throughout the molecule. These results will be useful for interpreting the ROA spectra of proline-rich peptides.
英文摘要: The characteristic pyrrolidine ring structure of Proline (Pro) and its conformational flexibility are important to the biological function in peptides and proteins. Raman Optical Activity (ROA) spectroscopy is used to carefully study the chirality of L-Pro in aqueous solution with different pH values. Raman shifts and ROA intensities are found to be directly correlated with the acidic or basic environment. The dramatic changes of the distributions and the dispersion of the ROA intensities indicate that an acidic or basic environment not only leads to the simple abstraction or addition of a proton but also changes the electron delocalization throughout the molecule. These results will be useful for interpreting the ROA spectra of proline-rich peptides.
内容类型: 会议论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/116091
Appears in Collections:中国科学院大连化学物理研究所_会议论文

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Recommended Citation:
Qiu S,Feng ZC,Li C,et al. pH -Dependent Chirality of L-Proline studied by Raman Optical Acticity and DFT calculation[C]. 见:CD2011 THE 13TH International Confenrence on Chiroptical Spectroscopy. Oxford. 2011-7-24.
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