Overview of where protons appear in an NMR spectrum C-H where C is CH on C attached to an aliphatic acid aldehyde benzene alkene next to C-H COOH CHO CH =C-H electronega- pi bonds tive atom X=C-C-H X-C-H 12 10 9 7 6 4 3 2 0 NMR Correlation Chart DOWNFIELD -OH -NH ...
1 H NMR 谱图中,与烯烃碳原子直接相连的质子,化学位移值在( )ppm。 A. 9.0-10.0 B. 7.0-8.0 C. 4.5-6.5 D. 2.0-3.0 题目标签:化学位位移质子如何将EXCEL生成题库手机刷题 如何制作自己的在线小题库 > 手机使用 分享 反馈 收藏 举报 参考答案: C 复制 纠错 相关题目: 资料一:20...
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NMR spectroscopy again confirmed that the structures of the wild type and mutants are not significantly affected by the deletions (Supplementary Fig. 9b). The effect of deleting loop-4 is particularly interesting as the equivalent region of KdHpuA, albeit being three residues shorter, is not ...
10 The para-isomer monomers and their respective polymers have been characterized by 1H NMR spectroscopy. 10 The inherent viscosities of the H-Cn Table II. Inherent viscosities and transition temperatures for the H-Cn polyesters' Polymer IJinh:dlg-! H C6 0.28 132 H-C8 0.38 124 H-CIO 0.39 ...
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The recycle delays and numbers of scans are given in Supplementary Table 2. The rotors were spun using dry nitrogen. Two types of sample were used for NMR: (1) spin-coated passivated thin films prepared according to the same procedure as in device fabrication (1H measurements) and (2) ...
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