| 新型寡聚酰胺体系螺旋-非螺旋构型转变研究 |
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| 引用本文： | 余响林,王俊,黎俊波,黎汪周,李楠楠,曾艳,陈嵘.新型寡聚酰胺体系螺旋-非螺旋构型转变研究[J].湖北大学学报(自然科学版),2011,33(2):155-159,164. |
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| 作者姓名： | 余响林 王俊 黎俊波 黎汪周 李楠楠 曾艳 陈嵘 |
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| 作者单位： | 武汉工程大学绿色化工过程教育部重点实验室,湖北武汉,430074 |
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| 基金项目： | 化工过程省部共建教育部重点实验室科研基金，武汉工程大学科学研究基金 |
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| 摘 要： | 对一种新的由2,6-二氨甲基吡啶和2,6-二羧基吡啶单元交替组成的寡聚酰胺化合物(7merMe)在不同极性溶剂中的一维及二维核磁共振氢谱进行了研究.结果表明,在极性小的溶剂(CHCl3)中,化合物7merMe因分子内的氢键及π-π互作用而形成螺旋结构,在极性大的溶剂(DMSO)中,分子内氢键被破坏,该化合物重新伸展.此...
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| 关 键 词： | 寡聚酰胺 螺旋-非螺旋 构型转变 1 H-1 H COSY谱 NOESY谱 |
Helix-nonhelix transformation of a novel oligopyridine-dicarboxamide |
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| YU Xianglin,WANG Jun,LI J unbo,LI Wangzhou,LI Nannan,ZENG Yan,CHEN Rong.Helix-nonhelix transformation of a novel oligopyridine-dicarboxamide[J].Journal of Hubei University(Natural Science Edition),2011,33(2):155-159,164. |
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| Authors: | YU Xianglin WANG Jun LI J unbo LI Wangzhou LI Nannan ZENG Yan CHEN Rong |
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| Institution: | (Key Laboratory for Green Chemical Process of Ministry of Education,Wuhan Institute of Technology,Wuhan 430074,China) |
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| Abstract: | The structure of a novel oligoamide（7merMe） composed of alternating of the 2,6-dimethylaminopyridines and 2,6-pyridine dicarboxylic acids units was studied by the one dimension and two dimensions 1H NMR.The results showed that 7merMe could form a single helical structure in nonpolar solvent（CDCl3） due to the intramolecular hydrogen bond and the P-P interaction.However,the helix can not be formed in polar solvent（CD3SOCD3） due to the destruction of hydrogen bond.This process simulated a helix-nonhelix ＂off-on＂ process controlled by solvents. |
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| Keywords: | oligoamide helix-nonhelix transformation 1H-1H COSY spectra NOESY spectra |
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