Paramagnet Enhanced Nuclear Spin Relaxation in H2O@Open-C60 and H2@Open-C60

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• 作者：Yongjun Li ; Xuegong Lei ; Judy Y. C. Chen ; Yasujiro Murata ; Nicholas J. Turro ; Ronald G. Lawler
• 刊名：Organic Letters
• 出版年：2013
• 出版时间：September 20, 2013
• 年：2013
• 卷：15
• 期：18
• 页码：4746-4749
• 全文大小：227K
• 年卷期：v.15,no.18(September 20, 2013)
• ISSN：1523-7052

文摘

Relaxation rates of endo-H₂O in H₂O@Open-C₆₀ in the presence of a nitroxide radical and of their nitroxide derivatives have been measured and are compared with effects for endo-H₂ in similar cages. T₁ relaxation enhancement of the endo-H₂O and H₂ induced by either intra- or intermolecular interaction is relatively insensitive to the presence of a cage opening. Enhancement of intermolecular relaxation is observed, however, when the cage opening has an OH group.