期刊
CHEMPHYSCHEM
卷 19, 期 3, 页码 251-255出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/cphc.201701330
关键词
endofullerenes; NMR spectroscopy; proton exchange; scalar relaxation; water
资金
- EPSRC (UK) [EP/N002482, EP/L505067/1]
- Bruker (UK)
- Wolfson Foundation
- EPSRC [EP/K00509X/1, EP/P030491/1, EP/P009980/1, 1842822, EP/M001962/1] Funding Source: UKRI
- Engineering and Physical Sciences Research Council [EP/M001962/1, EP/K00509X/1, EP/P009980/1, EP/P030491/1, 1842822] Funding Source: researchfish
The O-17 isotopomer of the water-endofullerene H2O@C-60 displays a remarkable proton NMR spectrum, with six well resolved peaks. These peaks are due to the J-coupling between the water protons and the O-17 nucleus, which has spin-5/2. The resolution of these peaks is enabled by the suppression of water proton exchange by the fullerene cage. The six peaks display an unusual pattern of linewidths, which we model by a Liouville-space treatment of scalar relaxation due to quadrupolar relaxation of the O-17 nuclei. The data are consistent with rotational diffusion of the water molecules on the sub-picosecond timescale.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据