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Showing 1 to 13 of 13 for “"quadrupole interaction"”.
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The effect of high pressure on the quadrupole interaction in iron-fluorine compounds
… ions. A detailed analysis was made of the quadrupole pplitting of the Mossbauer spectra for both the ferrous and the ferric salts. The analysis proceeded along two lines: the usual pointcharge approximation and a covalent approximation based upon configuration interaction. Although the …
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Microwave Spectra, Internal Rotation, Nitrogen-14 Quadrupole Interaction,and Vibrational Studies in Methylthiocyanate, Methylisocyanate, and Methylisothiocyanate
Made available in DSpace on 2014-12-09T17:35:33Z (GMT). No. of bitstreams: 1 6612365.pdf: 4817336 bytes, checksum: c3cd415d6ea67b4b62b5931fe3e83997 (MD5) Previous issue date: 1966
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Part I. Time Dependence of Moessbauer Transmission. Part Ii. Sign of the Nuclear Quadrupole Interaction From Polarized Gamma-Gamma Angular Correlations
Made available in DSpace on 2015-05-12T17:12:23Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 6101619.PDF: 3171139 bytes, checksum: 97c30b5aaf5703c4993e27fb4b673c98 (MD5) Previous issue date: 1961
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A Study of Dilute Aluminum and Vanadium Nmr in Alpha-Titanium and in Hydrogen Doped Alpha-Titanium (Knight Shift, Electron Distribution, Quadrupole Interaction, Anisotropic, Alloy(hcp))
… curves incorporates the effects of nuclear quadrupole and anisotropic shift interactions, dipolar broadening, and inhomogeneous Knight shift distribution. From the simulation work, experimental parameters such as electric field gradient (EFG), axial anisotropic Knight shift K(,ax), and …
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A nuclear magnetic resonance study of UNI₂AL₃
… for the combined effects of both a quadrupolar interaction and a Knight shift has been examined for the case of non-axial symmetry. A detailed derivation is given, correct to second order in perturbation theory, for the case where the quadrupole interaction is significantly smaller than the …
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Moessbauer Studies on Partially Oriented Samples of Carbon Monoxymyoglobin and Photodissociated Carbon Monoxymyoglobin
… consists of a doublet which is the result of the quadrupole interaction with the electric field gradient (EFG) at the ('57)Fe nucleus. The photo-produced partial orientation affects the intensity ratio R of the two lines; measurements of R versus the fraction MbCO remaining allows the …
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A Mossbauer study of divalent iron in silver chloride crystals
The temperature dependence. of the quadrupole splitting and the quadrupole relaxation rate has been investigated by means of the Mossbauer effect for divalent iron, initially diffused as S7Co into single crystals of silver chloride. The divalent iron ion substitutes for the monovalent silver ion …
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Nuclear charge distribution of ¹⁸¹Ta
… way. The monopole part of the electrostatic interaction, corrected for vacuum polarization, is used in the Dirac equation. Then the electric quadrupole interaction term is diagonalized in the basis formed by the Dirac solutions and the nuclear wave functions. This prescription assumes a …
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Solid State Nuclear Magnetic Resonance of Quadrupolar Nuclei (Nmr)
… considerations conserning the second order quadrupole interaction are discussed including the effect of nuclear spin, asymmetry parameter, magnetic field strength, magic angle and variable angle sampling spinning. Evidence for susceptibility broadening due to magnetic impurities is also …
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High Field DNP NMR probe design and application in crystalline solids
… to improve the enhancement. The dynamics and interactions of water molecules are studied in lanthanum magnesium nitrate hydrate (La 2Mg3 (NO 3 )12 24H 20) (LMN) using a variety of 2H and 170 NMR techniques. Variable temperature 2H spectra are studied to characterize water dynamics in LMN, and …
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Structure-Function Studies on Two Phosphoenolpyruvate Carboxylases
… that in human PEPCK, Tyr235 forms an anion-quadrupole interaction with the carboxylate of PEP and thus positions the latter with respect to the enzyme-bound Mn²+ for optimal phosphoryl transfer and catalysis. We have also identified Pro82 as a catalytically influential residue in this …
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Ultracold Molecular Structure and Collisions
… electric dipole moments and long-range dipolar interactions of polar alkali-dimer molecules (such as KRb) with external magnetic fields. We find that this tunability is possible due to the quantum ergodicity of molecular eigenstates at low magnetic fields and the avoided crossings caused by the …
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High-Resolution Multinuclear Magnetic Resonance of Inorganic Solids. Oxygen-17 Nuclear Magnetic Resonance Studies of Inorganic Oxides, Oxyanions, and Silicates
… indicate that a very wide range of oxygen-17 quadrupole coupling constants (e('2)qQ/h, (TURN)0 to > 5 MHz) and linewidths ((TURN)0.3 to > 40 ppm) are to be anticipated in solid-state oxygen-17 NMR studies. The linewidth of solid Mg('17)O (0.3 ppm) is narrower than that of liquid water, due to …