Off-the-shelf Gd(No3)3 as an efficient high-spin metal ion polarizing agent for magic angle spinning dynamic nuclear polarization
Author(s)
Type
Journal Article
Abstract
Magic angle spinning nuclear magnetic resonance spectroscopy experiments are widely employed in the characterization of solid media. The approach is incredibly versatile but deleteriously suffers from low sensitivity, which may be alleviated by adopting dynamic nuclear polarization methods, resulting in large signal enhancements. Paramagnetic metal ions such as Gd3+ have recently shown promising results as polarizing agents for 1H, 13C, and 15N nuclear spins. We demonstrate that the widely available and inexpensive chemical agent Gd(NO3)3 achieves significant signal enhancements for the 13C and 15N nuclear sites of [2-13C,15N]glycine at 9.4 T and ∼105 K. Analysis of the signal enhancement profiles at two magnetic fields, in conjunction with electron paramagnetic resonance data, reveals the solid effect to be the dominant signal enhancement mechanism. The signal amplification obtained paves the way for efficient dynamic nuclear polarization without the need for challenging synthesis of Gd3+ polarizing agents.
Date Issued
2022-08-25
Date Acceptance
2022-08-01
Citation
The Journal of Physical Chemistry B: Biophysical Chemistry, Biomaterials, Liquids, and Soft Matter, 2022, 126 (33), pp.6281-6289
ISSN
1520-5207
Publisher
American Chemical Society
Start Page
6281
End Page
6289
Journal / Book Title
The Journal of Physical Chemistry B: Biophysical Chemistry, Biomaterials, Liquids, and Soft Matter
Volume
126
Issue
33
Copyright Statement
Copyright © 2022 The Authors. Published by American Chemical Society. This publication is licensed under CC-BY 4.0
License URL
Identifier
https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000841612800001&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=a2bf6146997ec60c407a63945d4e92bb
Subjects
Chemistry
Chemistry, Physical
COMPLEXES
ENHANCED NMR-SPECTROSCOPY
GD(III)
GHZ
Physical Sciences
RELAXATION
Science & Technology
SOLID-STATE NMR
TEMPERATURES
TOTAPOL
Publication Status
Published
Date Publish Online
2022-08-16