Slow Diffusion by Singlet State NMR Spectroscopy

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, T 1. Spatial information can be encoded with pulsed field gradients in the manner of stimulated echo sequence...

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Veröffentlicht in:	Journal of the American Chemical Society 2005-11, Vol.127 (45), p.15744-15748
Hauptverfasser:	Cavadini, Simone, Dittmer, Jens, Antonijevic, Sasa, Bodenhausen, Geoffrey
Format:	Artikel
Sprache:	eng
Schlagworte:	Atomic and molecular physics Chemistry Exact sciences and technology General and physical chemistry Molecular properties and interactions with photons Nuclear resonance and relaxation Physics Solution properties Solutions
Online-Zugang:	Volltext
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Beschreibung
Zusammenfassung:	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, T 1. 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.
ISSN:	0002-7863 1520-5126
DOI:	10.1021/ja052897b