Cambridge Open Engage home
What is Cambridge Open Engage?
How to Submit
Browse
About
News [opens in a new tab]

Coherent Dynamic Nuclear Polarization using Chirped Pulses

08 May 2023, Version 1
Working Paper
This content is a preprint and has not undergone peer review at the time of posting.

Abstract

This paper presents a study of coherent dynamic nuclear polarization (DNP) using frequency swept pulses at 94 GHz which optimize the polarization transfer efficiency. Accordingly, an enhancement ℇ∼496 was observed using 10mM trityl-OX063 as the polarizing agent in a standard d8-glycerol:D2O:H2O :: 6:3:1 glassing matrix at 70K. At present this is the largest DNP enhancement reported at this microwave frequency and temperature. Furthermore, the frequency swept pulses enhance the nuclear magnetic resonance (NMR) signal and reduce the recycle delay, accelerating the NMR signal acquisition.

Keywords

NMR
nuclear magnetic resonance
DNP
dynamic nuclear polarization
coherent DNP
pulsed DNP

Supplementary materials

Title
Description
Actions
Title
Supporting Information
Description
1. DNP Transfer Ratios 2. W-band EPR 3. Study of Electron Coherence after SSE 4. Movie demonstrating the electron and nuclear polarizations during ISE
Actions

Comments

Comments are not moderated before they are posted, but they can be removed by the site moderators if they are found to be in contravention of our Commenting Policy [opens in a new tab] - please read this policy before you post. Comments should be used for scholarly discussion of the content in question. You can find more information about how to use the commenting feature here [opens in a new tab] .
This site is protected by reCAPTCHA and the Google Privacy Policy [opens in a new tab] and Terms of Service [opens in a new tab] apply.

Version History

May 08, 2023 Version 1

Metrics

266
169
0
Views
Downloads
Citations

License

CC logo
CC
BY logo
BY
The content is available under CC BY 4.0 [opens in a new tab]

DOI

10.26434/chemrxiv-2023-c8gpf
D O I: 10.26434/chemrxiv-2023-c8gpf [opens in a new tab]

Funding

National Institutes of Health
GM132997
National Institutes of Health
AG058504
Swiss National Science Foundation
P500PN_202639
US Department of Energy
DE-SC0020260
National Science Foundation Division of Materials Research
DMR-1644779
National Science Foundation Division of Materials Research
DMR-2128556

Author’s competing interest statement

The author(s) have declared they have no conflict of interest with regard to this content

Ethics

The author(s) have declared ethics committee/IRB approval is not relevant to this content

Share