Abstract
Cesium-133 NMR spectra of a single crystal of tetragonal <TEX>$Cs^+ (15-crown-5)_2I^-$</TEX> were obtained as a function of crystal orientation in an applied magnetic field of 9.40T and analyzed to provide the magnitudes and orientations of the <TEX>$^{133}Cs$</TEX> chemical shift and quadrupolar tensors for two magnetically nonequivalent and symmetry related sites. Chemical shift tensor components and parameters of quadrupolar interactions are obtained as <TEX>${\delta}_{11}=46(1),\;{\delta}_{22}=60(1),\;{\delta}_{33}=-30(1)$</TEX> ppm, quadrupole coupling constant QCC = 581(1) kHz, and asymmetry parameter <TEX>${\eta}$</TEX> = 0.481(1), respectively. The nonaxially symmetric NMR parameters imply that the local environment of the cesium nuclei is nonaxially symmetric. The DANTE experiment burned holes in the <TEX>$^{133}Cs$</TEX> NMR line of the title compound. The hole burning of the single crystal and powder <TEX>$^{133}Cs$</TEX> NMR lines showed that the NMR lines are not homogeneously broadened.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
