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127 I NQR in some iodic acid compunds
Author(s) -
Balicheva T. G.,
Grechishkin V. S.,
Petrova G. A.,
Shishkin V. A.
Publication year - 1973
Publication title -
organic magnetic resonance
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.483
H-Index - 72
eISSN - 1097-458X
pISSN - 0030-4921
DOI - 10.1002/mrc.1270051102
Subject(s) - asymmetry , chromate conversion coating , quadrupole , coupling constant , nuclear quadrupole resonance , covalent bond , ion , atom (system on chip) , chemistry , computational chemistry , inorganic chemistry , materials science , atomic physics , nuclear magnetic resonance , corrosion , physics , organic chemistry , quantum mechanics , computer science , embedded system
127 I NQR frequencies have been measured in 20 compounds including iodates, chromate‐iodates and tri‐iodates. Quadrupole coupling constants and asymmetry parameters have been calculated at 77°K. Lines have been assigned by the two‐frequency method. NQR data show the presence of covalent bonds in iodates and tri‐iodates. In chromate‐iodates the large value of the asymmetry parameter is due to the non‐equivalence of an oxygen atom in the IO 3 − ion.