Quadrupole Moment of the Second Excited State of<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msup><mml:mrow><mml:mi mathvariant="normal">F</mml:mi></mml:mrow><mml:mrow><mml:mn>19</mml:mn></mml:mrow></mml:msup></mml:mrow></mml:math>

Sugimoto, Katsuhisa; Mizobuchi, Akira; Nakai, K.

doi:10.1103/physrev.134.b539

Cited by 37 publications

(4 citation statements)

References 14 publications

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“…The lack of attenuation of the precession in those cases is illuminating. The 5/2+ state of 19F is known to have a quadrupole moment of about 0.11 barns from the remarkable DPAC experiments of Sugimoto (65). Thus, it appears that radiation damage does not cause ap preciable vacancies near the final19F sites and moreover that these final sites have nearly cubic symmetry.…”

Section: Magnetic Moments Of Excited Statesmentioning

confidence: 95%

Magnetic Dipole Moments of Excited Nuclear States

Гродзинс¹

1968

Annu. Rev. Nucl. Sci.

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Section: Magnetic Moments Of Excited Statesmentioning

confidence: 95%

Magnetic Dipole Moments of Excited Nuclear States

Гродзинс¹

1968

Annu. Rev. Nucl. Sci.

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“…By bom bardm ent with accelerated protons it can be excited to a state with 7 = 5 /2 , 197 keV above the ground state. The quadrupole coupling of this excit ed state causes an oscillating, non-isotropic distribu tion of the gam m a-quants emitted on return of the nuclei to their ground state [3]. This oscillation is a superposition of the three transition frequencies in 0340-4811 / 86 / 0100-0203 $ 01.30/0.…”

Section: Methodsmentioning

confidence: 95%

Boron, Nitrogen, and Fluorine Nuclear Quadrupole Coupling and the Electronic Structure of the Boron—Nitrogen Single Bond

Olliges

Lötz

Voitländer

et al. 1986

Zeitschrift Für Naturforschung A

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The n B and l9F nuclear quadrupole couplings in F 3BNH V(CH3)3_;(. compounds are reported. The boron quadrupole couplings were measured by quadrupole perturbed N M R in the solid state. The fluorine quadrupole couplings were obtained by the time-differential observation of the angular distribution of the gamma radiation after excitation o f the fluorine nuclei with accelerated protons (TDPAD). The results are discussed in connection with the nitrogen quadru pole couplings in F 3BNHV R 3_* compounds, and the nitrogen and boron quadrupole couplings in H 3BNHvR 3_x: compounds which were previously determined by nuclear quadrupole double resonance. In the F 3BNHyR 3_x series of compounds, the donor-acceptor character o f the B -N bond appears to be less im portant than in the H 3BNH V R 3_^ compounds in favour of a more ionic character of the bond with a higher negative charge on nitrogen.

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“…Recently, a value of the quadrupole moment Q of 19F* has been obtained5 within a confidence limit of 5% from a combination of the calculated field gradient in the diatomic FC1 molecule using an accurate firstprinciple Hartree-Fock procedure with the observed 19F* quadrupole coupling constant. 6 The interpretation of the absolute values of the fluorobenzene quadrupole coupling constants therefore provide a consistency test of this new value of the quadrupole moment. 5 Unfortunately, the sizes of the fluorobenzene molecules make first-principle calculation of the field gradient at 19F* nuclei rather laborious and expensive in terms of computer time.…”

Section: Introductionmentioning

confidence: 97%