An 17O nuclear quadrupole double resonance study of several crystal hydrates |
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| Institution: | 1. School of Molecular Bioscience, University of Sydney, NSW 2006, Australia;2. Department of Chemistry, University of Southampton, Highfield, SO17 1BJ, UK;1. School of Chemistry, University of Southampton, Southampton SO17 1BJ, United Kingdom;2. Institut de Chimie des Substances Naturelles, CNRS UPR2301, Univ. Paris-Sud, Université Paris-Saclay, 91190 Gif-sur-Yvette, France |
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| Abstract: | Using the technique of double resonance with coupled multiplets (DRCM), 17O double resonance signals were detected in natural abundance from the H2O molecule in the hydrates BeSO4 · 4H2O, AlCl3 · 6H2O, CH3COOLi · 2H2O, LiClO4 · 3H2O, Sr(OH)2 · H2O, Ba(OH)2 · 8H2O, LiBr · 2H2O and MgSO4 · 7H2O.Using the DRCM technique approximate values for the HOH bond angle and the OH bond length were determined from the dipolar structure present on the 17O double resonance signals. A Townes and Dailey analysis was used to examine the small differences in the 17O quadrupole coupling constants and asymmetry parameters between these samples. |
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