Hydrogen bond studies |
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Authors: | Bo Berglund Jörgen Tegenfeldt |
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Institution: | Institute of Chemistry, University of Uppsala , S-751 21, Uppsala 1, Sweden |
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Abstract: | The deuteron magnetic resonance spectra from partially deuterated single crystals of NaHC2O4. H2O have been studied. The quadrupole coupling tensors for stationary deuterons are determined at about 25°C. The quadrupole coupling constants and the assymmetry parameters η of the tensors for the two deuterons in the water molecule are, 235·2 ± 1·9 and 228·5 ± 1·6 kHz, and 0·09 ± 0·01 and 0·13 ± 0·01, respectively. The principal axes corresponding to the largest components both deviate by 0·9 ± 0·5° from their respective O-H directions. For one of the tensors this angular displacement is in the plane of the H2O molecule and towards the other O-H direction. The displacement for the other tensor is out of the plane of the H2O molecule. |
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