Pure Quadrupole Resonance of Halogens in Potassium Hexahalorhenates(IV)

127I Pure Quadrupole Resonance Spectrum of Orthoperiodic acid, H5IO(

The NQR-spectrum of 127I in orthoperiodic acid, H 5 I0 6 , has been studied on powder samples in the temperature range 77 K T 398 K. The resonance frequencies vx of the transition i n ( ± 3 / 2 ) ^ m ( ± l / 2 ) are 45.248 + 0.005 MHz (77 K) and 4 4 . 9 7 6 ± 0 . 0 0 5 MHz (296 K ) . For the transition TO(±5/2) ^ I t o ( ± 3 / 2 ) the resonance frequencies v2 are 8 3 . 4 7 8 ± 0 . 0 0 5 MHz (77...

Quadrupole Resonance in Chloranil

PREVIOUS papers1 in this series have dealt with (a) the evaluation of radial wavefunctions, phase shifts, reduced phases, and differential elastic cross sections for scattering by a L-J (12, 6) potential; (b) the resulting velocity dependence of the differential and total scattering cross sections, with attention given to the Jeffreys-Born OB) approximation for the higher-order phases; (c) the ...

Nuclear Quadrupole Resonance of Nitrogen-14 in Potassium Hexathiocyanatoplatinate(IV) and Tetrathiocyanatomercurate(II)

The nuclear quadrupole resonance of 14N was observed in KoPt(SCN)6 and K2Hg(SCN)4 at various temperatures. Both compounds yield large asymmetry parameters indicating the existence of asymmetric ^-electron distribution about a CN bond axis. The ionic character of metal-ligand bonds in the platinum and mercury complexes is estimated to be 28% and 58 %, respectively. The temperature dependence of ...

Nuclear Quadrupole Resonance*

A resonance phenomenon which is closely related to NMR is nuclear quadrupole resonance (NQR), which was discovered in 1950 by Dehmelt and Kruger. All nuclei with a spin > 1 possess in addition to the magnetic moment, an electric quadrupole moment eQ, which measures the deviation of the distribution of the positive charge in the nucleus from spherical symmetry. While e is the elementary charge, ...

Nuclear Quadrupole Resonance Spectroscopy