Format

Send to

Choose Destination
See comment in PubMed Commons below
J Am Chem Soc. 2013 Feb 27;135(8):2935-8. doi: 10.1021/ja312265x. Epub 2013 Feb 13.

High-field 13C dynamic nuclear polarization with a radical mixture.

Author information

1
Francis Bitter Magnet Laboratory, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA.

Abstract

We report direct (13)C dynamic nuclear polarization at 5 T under magic-angle spinning (MAS) at 82 K using a mixture of monoradicals with narrow EPR linewidths. We show the importance of optimizing both EPR linewidth and electron relaxation times by studying direct DNP of (13)C using SA-BDPA and trityl radical, and achieve (13)C enhancements above 600. This new approach may be best suited for dissolution DNP and for studies of (1)H depleted biological and other nonprotonated solids.

PMID:
23373472
PMCID:
PMC3605040
DOI:
10.1021/ja312265x
[Indexed for MEDLINE]
Free PMC Article
PubMed Commons home

PubMed Commons

0 comments
How to join PubMed Commons

    Supplemental Content

    Full text links

    Icon for American Chemical Society Icon for PubMed Central
    Loading ...
    Support Center