Time displacement rotational echo double resonance: heteronuclear dipolar recoupling with suppression of homonuclear interaction under fast magic-angle spinning

Tim W T Tsai; Yun Mou; Jerry C C Chan

doi:10.1016/j.jmr.2011.10.003

Time displacement rotational echo double resonance: heteronuclear dipolar recoupling with suppression of homonuclear interaction under fast magic-angle spinning

J Magn Reson. 2012 Jan;214(1):315-8. doi: 10.1016/j.jmr.2011.10.003. Epub 2011 Oct 10.

Authors

Tim W T Tsai¹, Yun Mou, Jerry C C Chan

Affiliation

¹ Department of Chemistry, National Taiwan University, No. 1, Section 4, Roosevelt Road, Taipei, Taiwan.

PMID: 22055980
DOI: 10.1016/j.jmr.2011.10.003

Abstract

We have developed a novel variant of REDOR which is applicable to multiple-spin systems without proton decoupling. The pulse sequence is constructed based on a systematic time displacement of the pi pulses of the conventional REDOR sequence. This so-called time displacement REDOR (td-REDOR) is insensitive to the effect of homonuclear dipole-dipole interaction when the higher order effects are negligible. The validity of td-REDOR has been verified experimentally by the P-31{C-13} measurements on glyphosate at a spinning frequency of 25 kHz. The experimental dephasing curve is in favorable agreement with the simulation data without considering the homonuclear dipole-dipole interactions.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Algorithms*
Artifacts*
Magnetic Resonance Spectroscopy / methods*
Nuclear Magnetic Resonance, Biomolecular / methods*
Signal Processing, Computer-Assisted*
Spin Labels

Substances

Spin Labels