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Molecular Physics
An International Journal at the Interface Between Chemistry and Physics
Volume 28, 1974 - Issue 1
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Original Articles

Double résonance hétéronucléaire {35Cl}-1H dans le trichlorosilane

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Pages 177-186 | Received 20 Nov 1973, Published online: 22 Aug 2006
 

Abstract

Une expérience de double résonance hétéronucléaire {35Cl}-1H a été effectuée avec succès sur le trichlorosilane pur Si HCl3 dont la raie protonique observée en haute résolution est nettement élargie par les interactions scalaires avec les noyaux de chlore. L'étude de la largeur de raie et la mesure de T 1ρ pour le proton, ont permis une mesure indirecte du temps de relaxation spin-milieu du chlore 35, τ 1(35Cl) = (112 ± 9) μs, ainsi que la détermination de la constante de couplage J(35Cl-1H) = (9,3 ± 0,3) Hz.

Heteronuclear double resonance {35Cl}-1H has been achieved using neat trichlorosilane Si HCl3, in which the broadened high resolution line of the proton reveals the scalar coupling with the chlorine nuclei. Line width studies and T 1ρ experiments have been carried out on the proton leading to the indirect measurement of the spin lattice relaxation time of 35Cl, τ 1(Cl) = (112 ± 9) μs and permitting the determination of scalar coupling J(35Cl-1H) = (9·3 ± 0·3) Hz.

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