Slow Diffusion by Singlet State NMR Spectroscopy

descriptionPublicationkeyboard_double_arrow_right Article 19 Oct 2005 English Publisher:American Chemical Society (ACS)Journal:Journal of the American Chemical Society, volume 127, pages 15,744-15,748 (issn: 0002-7863, eissn: 1520-5126,

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Authors: Cavadini S; Dittmer J; Antonijevic S; Bodenhausen G;

doi: 10.1021/ja052897b

pmid: 16277516

Slow Diffusion by Singlet State NMR Spectroscopy

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Abstract

Small diffusion coefficients can be measured by using populations of singlet states that have a relaxation time constant, T(s), which can be much longer than the longitudinal relaxation time, T1. Spatial information can be encoded with pulsed field gradients in the manner of stimulated echo sequences. Singlet states can be excited via double-quantum coherences to enhance the efficiency of phase encoding and decoding.

Related Organizations

École Polytechnique Fédérale de Lausanne EPFL
Switzerland
Aarhus University
Denmark

Keywords

Colloid and Surface Chemistry, General Chemistry, Biochemistry, Catalysis

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