常用的1D和2D NMR 实验及用途-5 ▼Long-Range-CH-COSY谱---远程偶合碳氢二维谱,对辨认季碳和疑难碳峰非常有用 ▼COLOC谱---Correlated Spectroscopy via Long Range Coupling远程偶合相关谱 ▼NOESY谱(即HH NOE二维谱)--- 揭示原子与原子空间距离信息 ▼HOESY谱(异核,即CH NOE二维谱)--- 揭示原子与原子空...
▼SECSY谱---Spin-Echo Correlated Spectroscopy自旋回波相关谱 ▼SEFT谱---Spin-Echo Fourier Transform—自旋回波富里哀变换谱,谱峰的正负和强度与延迟时间τ或πτJ(H,C) 有函数关系,当πτJ=180°时,CH3和CH 是负峰,CH2和C是正峰。 常用的1D和2D NMR 实验及用途-3 ▼SE...
1Dand2DNMRspectrums NMRspectrums ZhirongYao2009.10.25 NMRspectrums 常见的核磁谱图简介谱图解析举例 NMRspectrums 1D-NMR•1H-NMR •13C-NMR •DEPT(Distortionlessenhancement bypolarizationtransfer)无畸变极化转移增强 •1D-TOCSY(Totalcorrelation spectroscopy)接力相干传递/全氢相关 2D-NMR•COSY •...
1D和2D核磁共振谱应用 核磁共振技术及其在有机结构研究方面的应用 前言常用的1D和2DNMR实验及用途结构解析实例 一个常规1H-NMR谱图 4.0 1.005 3.5 3.0 2.004 2.5 2.019 2.0 2.019 1.5 2.00418.220 1.0 3.000 ppm 从NMR谱图推导化合物结构 NMR谱图信息 化学位移 偶合常数 ...
Introduction to NMR Spectroscopy", Abraham R J, Fisher J, Loftus P, Wiley, New York, 1988.Introduction to NMR Spectroscopy - Abraham, Fisher, et al. - 1988 () Citation Context ...iven bys0B s(7.9)sSince the nuclear momentum 纬 is specific for each type of nucleus, the resonance ...
Wine analysis by 1D and 2D NMR spectroscopy. Analusis 1998, 26, 97-101.Kosir I, Kocjancic M, Kidric J (1998) Analusis 26:97–101Kosir, I. J.; Kocjancic, M.; Kidric, J. Wine analysis by 1D and 2D NMR spectroscopy. Analusis (Paris) 1998, 26 (2), 97-101....
The complete 1H and 13C NMR assignment of new 1,3-oxazepane-4,7-dione compounds has been obtained using one- and two-dimensional NMR techniques including COSY, HMQC, and HMBC experiments. The data deduced from this study show that the alkyl chain and the phenyl ring are in different planes...
1D和2D核磁共振谱应用概述 核磁共振技术及其在有机结构研究方面的应用 前言常用的1D和2DNMR实验及用途结构解析实例 一个常规1H-NMR谱图 4.0 1.005 3.5 3.0 2.004 2.5 2.019 2.0 2.019 1.5 2.00418.220 1.0 3.000 ppm 从NMR谱图推导化合物结构 NMR谱图信息 化学位移 偶合...
2H,2H‐COSY and 2H,2H,13C‐RELAY NMR Experiments for the Analysis of Deuteriated Compounds Determination of the homonuclear coupling between and the correlation of C nuclei via vicinal deuterium nuclei has been achieved by 2D NMR spectroscopy. [D5]Pyridine was used to show that the only 0.1...
& This, H. Using one-dimensional (1D) and two-dimensional (2D) quantitative proton (1H) nuclear magnetic resonance spectroscopy (q NMR) for the identification and quantification of taste compounds in raw onion (Allium cepa L.) bulbs and in aqueous solutions where onion tissues are soaked. ...