Chapter 2 NMR of thin magnetic films and superlattices
1999年1月1日 · The ordered electronic magnetism of a ferromagnet induces a static effective (hyperfine) magnetic field (HFF) at a nucleus even in the absence of an external field. The …
Stacked 1H-NMR spectra of Hff+ Dff (top), Hff (middle), and Dff (bottom) in D2O at pH 7. The most ignificant shifts are marked with dotted lines (His imidazole CHs and Cα-H).
Quantification of hydrogen fluoride-based reagents using a …
2016年4月1日 · Herein, we report a quantitative 1 H and 19F NMR titration to determine the composition of HF reagents using a bifunctional internal standard⿿ethyl trifluoroacetate. [6] This …
NMR study of laves compounds CeFe - Wiley Online Library
1995年4月16日 · The hyperfine fields (HFF) at 57 Fe, 27 Al, and 63,65 Cu nuclei in CeFe 2, CeFe 1.985 Al 0.015, and CeFe 1.985 Cu 0.015 are measured by pulse nuclear magnetic …
1 H NMR spectrum of HF@1 recorded at 850 MHz (19.96 T) and …
The filling factor of HF@1 was established by 1 H NMR spectroscopy, comparing the integral values of the endohedral HF proton with the protons on the exohedral groups.
核磁共振氢谱（H Nuclear Magnetic Resonance Spectra，HNMR）
将样品指定基团上的质子引起的共振峰（即吸收峰）面积与由内标物质指定基团上的质子的共振峰面积进行比较。 下图是H NMR中常见特征质子的化学位移，那么都有哪些因素会影响H的化 …
FIGURE 4. 1 H NMR spectra of standard HS and hFF derived aHS …
The hFF HS was found to contain 50.4% aHS, a very high proportion because AT-binding chains usually represent 5–15% of total HS and a maximum of 30% of heparin chains.
Fluorine and Proton NMR Study of Gaseous Hydrogen Fluoride
The 19 F and 1 H resonances for gaseous hydrogen fluoride were measured over the range from low pressure to saturated vapor. In each spectrum, only a single line is observed, which shows …
史上最全、最详细的NMR核磁杂质峰、溶剂峰对照表 - 知乎
2023年8月2日 · 以往大家常用的“ NMR核磁溶剂峰 对照表. 只是总结了每种 氘代试剂 中的溶剂峰. 而本资料总结了10余种实验室常用氘代溶剂中 上百种有机杂质 的氢谱、碳谱化学位移. 包 …
如何迅速看懂一张核磁共振氢谱图？ - 知乎
识别杂质峰：在¹H-NMR谱中，溶剂峰是最常见的杂质峰，如氘代甲醇的溶剂峰在3.30 ppm，水峰在4.8 ppm。 排除这些峰后，才能更好地分析样品峰。 计算积分曲线：积分曲线的总高度与分 …