1H-1H double-quantum CRAMPS NMR at very-fast MAS (nuR=35 kHz): a resolution enhancement method to probe 1H-1H proximities in solids

Luís Mafra; José R B Gomes; Julien Trébosc; João Rocha; Jean-Paul Amoureux

doi:10.1016/j.jmr.2008.10.009

1H-1H double-quantum CRAMPS NMR at very-fast MAS (nuR=35 kHz): a resolution enhancement method to probe 1H-1H proximities in solids

J Magn Reson. 2009 Jan;196(1):88-91. doi: 10.1016/j.jmr.2008.10.009. Epub 2008 Oct 12.

Authors

Luís Mafra¹, José R B Gomes, Julien Trébosc, João Rocha, Jean-Paul Amoureux

Affiliation

¹ Department of Chemistry, University of Aveiro, Campus de Santiago, CICECO, 3810-193 Aveiro, Portugal. [email protected]

PMID: 18977161
DOI: 10.1016/j.jmr.2008.10.009

Abstract

A High-resolution two-dimensional (2D) (1)H double-quantum (DQ) homonuclear recoupling experiments, combined with smooth amplitude-modulation (SAM) homonuclear decoupling is presented. The experiment affords highly resolved and clean (1)H DQ-SQ 2D spectra at very-fast MAS rates (nu(R)=35 kHz). The method is well suited to probe (1)H-(1)H distances in powdered solids and demonstrations are applied on a NaH(2)PO(4) powdered sample, an inorganic compound having hydrogen bonding networks.

Publication types

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

MeSH terms

Algorithms*
Computer Simulation
Hydrogen / analysis*
Hydrogen / chemistry*
Hydrogen Bonding*
Magnetic Resonance Spectroscopy / methods*
Models, Chemical*
Protons
Reproducibility of Results
Sensitivity and Specificity

Substances

Protons
Hydrogen