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

被引：1

作者：

Li, Yongjun ^{[1
]}

Lei, Xuegong ^{[1
]}

Chen, Judy Y. C. ^{[1
]}

Murata, Yasujiro ^{[3
]}

Turro, Nicholas J. ^{[1
]}

Lawler, Ronald G. ^{[2
]}

机构：

[1] Columbia Univ, Dept Chem, New York, NY 10027 USA

[2] Brown Univ, Dept Chem, Providence, RI 02912 USA

[3] Kyoto Univ, Inst Chem Res, Kyoto 6110011, Japan

来源：

ORGANIC LETTERS | 2013年 / 15卷 / 18期

基金：

美国国家科学基金会;

关键词：

NITROXIDE DERIVATIVES; MAGNETIC-RESONANCE; ORGANIC-SOLVENTS; FULLERENE C-60; H-2-AT-C-60; HYDROGEN; H-2;

D O I：

10.1021/ol402111x

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

Relaxation rates of endo-H2O in H2O@Open-C-60 in the presence of a nitroxide radical and of their nitroxide derivatives have been measured and are compared with effects for endo-H-2 in similar cages. T-1 relaxation enhancement of the endo-H2O and H-2 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.

引用

页码：4746 / 4749

页数：4

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