A Deuteron Magnetic Resonance Study of Sodium Perchlorate Monohydrate
نویسندگان
چکیده
The quadrupole splittings in the deuterium NMR spectrum from single crystals of deuterated sodium Perchlorate monohydrate, NaC104-D20, have been measured at 25 °C and — 55 °C. At room temperature, the 180° flip frequency of the D20 molecules is large compared to the difference between the splittings for the two deuterons. The average quadrupole coupling constant (e2 q Q/h) and asymmetry parameter rj are 134.1(4) kHz and 0.621(5), respectively. At —55 °C, the electric field gradient tensors for each of the two deuterons were observed corresponding to slowly flipping water molecules, and e2qQ/h and rj for the two deuterons are 231.5(6) and 226.7(6) kHz and 0.196(4) and 0.195(5), respectively. The results indicate that the hydrogen positions in NaC104-H,0 are dynamically disordered. H y d ro g e n B o n d S tudies
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