structure determination using HSQC and HMBCHSQC pulse sequence designingSummary This chapter contains sections titled: Inverse Experiments: 1 H Observe with 13 C Decoupling General Appearance of Inverse 2D Spectra Examples of One-Bond Inverse Correlation (HMQC and HSQC) Without 13 C Decoupling Examples...
ChemInformReynolds WF, Burns DC. 2012. Getting the most out of HSQC and HMBC spectra. In: Webb GA, ed. London, UK: Annual Reports on NMR Spectroscopy. Vol. 76. pp. 1-21.W.F. Reynolds, D.C. Burns, Getting the most out of HSQC and HMBC spectra, Annu. Rep. NMR Spectrosc. 76 ...
HMBC:为1H的异核多碳相关谱,将1H核和远程耦合的13C核关联起来,通常2~3个键的质子与碳的耦合信息较多。 长程异核位移相关谱,多键碳氢关系(HMBC), 是NMR(核磁共振) C-H COSY (碳氢连用图谱)之中的一种. 此外还有HMQC(异核多量子关系)。 HMBC给出的是...
HSQC，HMQC主要是碳氢直接相关，HMBC为碳氢2、3、4键相关，不过4键有时候相关不是很强 ...
isolated olefinic bond in the aliphatic side chain, and six methyl (two angular and four at the aliphatic side chain) and one secondary carbinol (CHOH) at position 3 of ring A, which were unambiguously assigned as stated in Table 2 using 2D-NMR (HMBC, H-H-COSY, and HSQC) experiments....
求翻译:COSY, HSQC, and HMBC spectra (Figure 1).是什么意思?待解决 悬赏分:1 - 离问题结束还有 COSY, HSQC, and HMBC spectra (Figure 1).问题补充:匿名 2013-05-23 12:21:38 舒适,HSQC,HMBC和光谱(图1)。 匿名 2013-05-23 12:23:18 舒适, HSQC和HMBC光谱(图1)。 匿名 2013-05-23 ...
2.2.4 (+)-Tabercarpamines A–B and G–J The overall bis-indolic skeletal structure of (+)-tabercarpamine A (9) (Fig. 8) was determined based on the similarity of its two-dimensional 1H-13C HSQC and HMBC NMR spectra to those of the previously isolated T. corymbosa vobasinyl-Iboga...
aThe Da Vinci Code Da Vinci代码[translate] aHSQC (a) and HMBC (b) spectra of GS-I. HSQC (a) 和HMBC (b) 范围GS-I。[translate]
structureand 1 Hand 13 Cassignmentsofmolecules. HMBC 生物大分子波谱学原理 吴季辉 φ10 φ200002222 φ30022 φ402 φ50000000022222222 φref0202020220202020 g1:g2:g3=50:30:40 d 2 =1/2J CH ,d 6 60ms HMBC 生物大分子波谱学原理 吴季辉 ...
但由于 TOCSY 实验 不能揭示标量偶合核之间磁矢量的传递过程, 得到 的谱图不能区分直接或接力两种相关峰 6, 因此, 有 必要测定 13C-1H 相关谱 (HSQC 或 HMBC), 对比两 谱可以区分直接或接力两种相关峰。应用 HSQC- TOCSY, 再结合 1H-1HCOSY、 HSQC 和 HMBC 实验, 就可以对每个自旋系统内...