Deuteron quadrupole resonance studies. Part 8.—1H/2H double resonance in some inorganic hydroxy compounds

Abstract

² H quadrupole resonance frequencies have been detected in partially deuterated H₂SeO₃, HIO₃, B(OH)₃, Te(OH)₆, KHSO₄, NaHCO₃ and KHCO₃ using double resonance by level crossing (d.r.l.c.) techniques. Te(OH)₆ shows a complex multiplet which has been tentatively assigned using a combination of Zeeman measurements, double irradiation and double quantum methods.

The quadrupole coupling constants have been correlated with the H … O hydrogen bond lengths derived from neutron diffraction data, and deviations are attributed to differences in π-bonding to the oxygen atom.