典型溶剂的H-NMR峰批注本地保存成功开通会员云端永久保存去开通 J. Org. Chem., 62 (21), 7512 -7515, 1997 Table 1.1H NMR Data proton mult CDCl3 (CD3)2CO (CD3)2SO C6D6 CD3CN CD3OD D2O solvent residual peak 7.26 2.05 2.50 7.16 1.94 3.31 4.79 H2O s 1.56 2.84a 3.33a 0.40 2.13 4.87 ...
Table 1.1H NMR Data proton mult CDCl3 (CD3)2CO (CD3)2SO C6D6 CD3CN CD3OD D2O solvent residual peak 7.26 2.05 2.50 7.16 1.94 3.31 4.79 H2O s 1.56 2.84a 3.33a 0.40 2.13 4.87 acetic acid CH3 s 2.10 1.96 1.91 1.55 1.96 1.99 2.08 acetone CH3 s 2.17 2.09 2.09 1.55 2.08 2.15 2.22 ac...
表3 大鼠血清样本1H-NMR数据归属 Table 3 1H-NMR assignments of major metabolites in serum of rats 2.4 多元统计分析 为了进一步分析各组间代谢产物的微小差异,对所得的复杂数据通过降维处理后进行多元统计分析。采用PLS-DA对所有血清样本数据矩阵进行统计分析,结果见图2。模型组与对照组明显分开,表明模型复制成...
除此之外,具有强吸电子取代基或较大位阻的重氮对反应活性影响较大,致使收率降低。 aStandard conditions as in Table 2.bAfterA2was fully consumed (detected by TLC), PnBu3 (0.1 mmol) was added situ.cDiazo compoundA(0.1 mmol) was added into the reaction in 3 batches. 图3. 重氮的底物扩展 (来...
1.8 Integration INTEGRATION OF A PEAK Not only does each different type of hydrogen give a distinct peak in the NMR spectrum, but we can also tell the relative numbers of each type of hydrogen by a process called integration. Integration = determination of the area under a peak The area ...
5a). In the case of the photoreaction under 13CO2, the peak intensity of the carboxyl carbon clearly increased, suggesting that the carboxyl moiety in DBA originates from CO2 (Fig. 5b)14,65. Figure 5 13C NMR (CD3CN, 126 MHz) spectra of the photochemical product (λex = 300...
Hyperisampsin H (1), and on a quasi-molecular a colorless oil, had a molecular ion peak at m/z 581.2799 [M + formula Na]+ in HofRCE3S5IHM42SOt6habtasreedquoirned13C15NinMdRicedsaotaf hydrogen deficiency. The 1H NMR (Table 1) spectrum of 1 showed resonances for a ...
PV140R1K1T1NMRZ parker mahle FH87/G SDT100LS8/2/BMG/TH;S.O. 25.01151672.01.001.07.09 323-9110-380 KUEBLER8.A02H.3551.1024增量编码器编码器HelmutSchlapsGmbH OTT+HEUGEL GmbH VTI Instruments VT1503A ConecML25-10KMMB Max working pressure=8 bar,750010 danfoss bauer FCD315-P-T4-P66-EX-R1-...
Solid-State (13) C NMR delineates the architectural design of biopolymers in native and genetically altered tomato fruit cuticles. Biomacromol. 2016;17:215–24. https://doi.org/10.1021/acs.biomac.5b01321. Chechanovsky N, Hovav R, Frenkel R, Faigenboim A,...
based catalyst at a current of 800 mA or 1000 mA. FTIR, NMR, and GC-MS spectroscopy results confirm that electrochemical monochlorination can indeed be carried out with these substrates (Fig. S71–S77). From the product distribution, the selectivity of Cl addition towards alkyl hydrogens...