Deuterium NQR Spectra: Dipolar Interaction Between Two Quadrupolar Nuclei
نویسندگان
چکیده
für Naturforschung in cooperation with the Max Planck Society for the Advancement of Science under a Creative Commons Attribution 4.0 International License. Dieses Werk wurde im Jahr 2013 vom Verlag Zeitschrift für Naturforschung in Zusammenarbeit mit der Max-Planck-Gesellschaft zur Förderung der Wissenschaften e.V. digitalisiert und unter folgender Lizenz veröffentlicht: Creative Commons Namensnennung 4.0 Lizenz. Deuterium NQR Spectra: Dipolar Interaction Between Two Quadrupolar Nuclei
منابع مشابه
Residual dipolar coupling between quadrupolar nuclei under magic-angle spinning and double-rotation conditions.
Residual dipolar couplings between spin-1/2 and quadrupolar nuclei are often observed and exploited in the magic-angle spinning (MAS) NMR spectra of spin-1/2 nuclei. These orientation-dependent splittings contain information on the dipolar interaction, which can be translated into structural information. The same type of splittings may also be observed for pairs of quadrupolar nuclei, although ...
متن کامل2D Off-Resonance Nutation NQR Spectroscopy of Spin 3/2 Nuclei*
The effects of off-resonance irradiation in nutation NQR experiments are demonstrated both experimentally and theoretically. The theoretical description of the off-resonance effects in 2D nutation NQR spectroscopy is given, and general exact formulas for the asymmetry parameter are obtained. It is shown that the outcome of the off-resonance nutation experiments depends on the data acquisition p...
متن کاملMeasuring dipolar and J coupling between quadrupolar nuclei using double-rotation NMR.
Among the interactions which govern NMR spectra, spin-spin coupling interactions provide the most direct form of structural information which is of interest to chemists. Dipolar coupling may be used to measure internuclear distances directly and J coupling may be used to identify bonding interactions and provide insights into the nature of the bonds. It is well known that the presence of a quad...
متن کاملQ.E.COSY: Sign and Size of Small Deuterium Residual Quadrupolar Couplings based on extended E.COSY principle
Residual quadrupolar couplings contain important structural information comparable to residual dipolar couplings. However, the measurement of sign and size of especially small residual quadrupolar couplings is difficult. Here, we present an extension of the E.COSY principle to spin systems consisting of a spin 1 coupled to a spin 1⁄2 nucleus, that allows the determination of sign of the quadrup...
متن کاملZero field NMR and NQR
Methods are described and demonstrated for detecting the coherent evolution of nuclear spin observables in zero magnetic field with the full sensitivity of high field NMR. The principle motivation is to provide a means of obtaining solid state spectra of the magnetic dipole and electric quadrupole interactions of disordered systems without the line broadening associated with random orientation ...
متن کامل