Abstract
Using the technique of double resonance with coupled multiplets (DRCM), 17O double resonance signals were detected in natural abundance from the H 2O molecule in the hydrates BeSO 4 · 4H 2O, AlCl 3 · 6H 2O, CH 3COOLi · 2H 2O, LiClO 4 · 3H 2O, Sr(OH) 2 · H 2O, Ba(OH) 2 · 8H 2O, LiBr · 2H 2O and MgSO 4 · 7H 2O. 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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