5:解析H-HCOSY谱,从一维谱中已经确定的氢谱线出发找到与之相关的其它谱线。 6:解析13C-1HCOSY(或HMQC、HSQC)谱,同样从已知的氢谱线出发我到各相关的碳谱线,以此推断出这些碳谱线的归属。 7:解析13C-1H远程相关谱(COLOC或HMBC),从已确定的碳谱线出发,找到与之相关的各氢谱线或从已知的氢谱线出发找到各相...
预约1000次 平均0.00天完成 100.00%对实验结果满意 关注 实验室: 杭州柘大飞秒检测技术有限公司 参考价格: 面议 品牌: bruker400 型号: bruker400 立即预约 设备详情 客户评价 (0) 开放和收费情况 请填写详细介绍,可以填写仪器的技术指标、功能特色等等信息 ...
(1H,13C)-HSQC or HMQC serves to identify proton-bearing carbons and to associate these carbons with their attached protons. HSQC spectra feature generally better line shapes than HMQC and the commonly used multiplicity-edited HSQC versions offer the added benefit of distinguishing CH3, CH2, and ...
2D HSQC spectra DRX 500 MHz NMR spectrometer At 333K Scans: 256 Results and discussion Figure 2 : HSQC 13 C- 1 H correlation spectra of Poplar samples A: α β γ B: O O OCH 3 H 3 CO OCH 3 HO α β γ 2-O-Ac-β-D-xylop: C-2/H-2 correlation for the acetylated β-...
聚焦异头质子和甘露糖 H2 原子1H NMR 光谱和1H–13C HSQC 光谱分析,确定了相应的信号峰,如 4.99 ppm 的信号对应 80.9 ppm 的13 :借助 1D 选择性 TOCSY 和113113 在研究结论和讨论部分,研究人员成功完成 Fmoc-Asn-G1M9 的1H 和13C NMR 信号的完整归属,这一成果意义非凡。一方面,为后续利用 NMR 技术研究 ...
Indirect covariance NMR 1H-13C HSQC-TOCSYBruschweiller, R
1H and 13C NMR spectroscopic data of 20 new non-symmetrical compounds were assigned by a combination of 1D and 2D NMR experiments (DEPT, HSQC, and HMBC). These compounds contain a 4-(N,N-dimethylamino)- or 4-(pyrrolidin-1-yl)pyridinium moiety and a 3-nitro-, 3-amino-, or 3-...
百度试题 题目1H检测异核化学位移相关谱HSQC主要用于A.归属与1H核直接相联的13C核B.归属与1H核间接相联的13C核C.提供通过空间作用的核相关信息D.提供相邻藕合氢之间的相关信息 相关知识点: 试题来源: 解析 A 反馈 收藏
Bach, A C
2.4.4.1H NMR, 2D HSQC NMR, and13C NMR Solvent exchange was performed by pouring 10 mL of aqueous CtNWs (1.38 w/v%) or CsNWs (0.48 w/v%) suspensions into acetone to reach a 15/1 v/v acetone/H2O ratio. The precipitate was recovered by centrifugation (5000 rpm, 10 min) and the...