Issue 46, 2011
From the journal:

Chemical Communications

Indirect 1H NMR characterization of H2@C60 nitroxide derivatives and their nuclear spin relaxation†

Yongjun Li,a   Xuegong Lei,a   Xia Li,a   Ronald G. Lawler,b   Yasujiro Murata,c   Koichi Komatsud  and  Nicholas J. Turro*a  

* Corresponding authors

a Department of Chemistry, Columbia University, New York, USA
E-mail: njt3@columbia.edu

b Department of Chemistry, Brown University, Providence, Rhode Island 02912, USA

c Institute for Chemical Research, Kyoto University, Kyoto 611-0011, Japan

d Department of Environmental and Biological Chemistry, Fukui University of Technology, Gakuen, Fukui 910-8505, Japan

Abstract

1H NMR of two H2@C60 nitroxide derivatives has been characterized indirectly by reducing to their corresponding hydroxylamines. Nuclear spin relaxation of the endohedral H2 and external protons of the H2@C60 nitroxide and its corresponding hydroxylamine were measured and analyzed. The observed spectra are consistent with negligible scalar coupling between the unpaired electron and the endo-H2. An unexpectedly large bimolecular relaxivity induced in the hydroxylamine by the corresponding nitroxide can be explained by rapid hydrogen atom transfer between the two species.

Graphical abstract: Indirect 1H NMR characterization of H2@C60 nitroxide derivatives and their nuclear spin relaxation

About
Cited by
Related
Download options Please wait...

Supplementary files

Article information

DOI
https://doi.org/10.1039/C1CC15149E
Article type
Communication
Submitted
18 Aug 2011
Accepted
05 Oct 2011
First published
26 Oct 2011

Chem. Commun., 2011,47, 12527-12529

Permissions

Request permissions

Indirect 1H NMR characterization of H2@C60 nitroxide derivatives and their nuclear spin relaxation

Y. Li, X. Lei, X. Li, R. G. Lawler, Y. Murata, K. Komatsu and N. J. Turro, Chem. Commun., 2011, 47, 12527 DOI: 10.1039/C1CC15149E

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements