High-field 127I NMR of solid sheelite structures: periodates revisited.
We report new solid-state 127I NMR results for sheelite periodates, MIO4 (M = Na+, K+, Rb+, and NH4+), and for pseudo-scheelite CsIO4 and HIO4. The observed 127I quadrupole coupling constants were between 1.0 and 43.0 MHz in agreement with previous NQR data. In contrast to an early 127I NMR study (S. L. Segel and H. M. Vyas, 1980, J. Chem. Phys. 72, 1406), we found that the 127I chemical shift anisotropy is negligibly small in sheelite periodates. A small but definite 127I chemical shift tensor was observed for pseudo-scheelite CsIO4.
Wu
G
G
Department of Chemistry, Queen's University, Kingston, Ontario, Canada. gangwu@chem.queensu.ca
Dong
S
S
D007456:Iodine Isotopes / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D010504:Periodic Acid / Q000737:chemistry*
D007456:Iodine Isotopes; D010504:Periodic Acid