Nuclear Moments ofMo95,Mo97,Zr91,I127,Sb121, andSb123

Abstract

The hyperfine structure (hfs) of the spectrum of Mo i was studied, and it was found that both ${\mathrm{Mo}}^{95}$ and ${\mathrm{Mo}}^{97}$ have nuclear spins equal to $\frac{7}{2}$. Substituting this in the $g$-values of ${\mathrm{Mo}}^{95}$ and ${\mathrm{Mo}}^{97}$ given in the literature, the magnetic moments $\ensuremath{\mu}({\mathrm{Mo}}^{95})=\ensuremath{-}1.2736$ nm and $\ensuremath{\mu}({\mathrm{Mo}}^{97})=\ensuremath{-}1.3006$ nm (without diamagnetic correction) are obtained. Hfs investigation of the spectrum of Zr i yielded the result that $\ensuremath{\mu}({\mathrm{Zr}}^{91})=\ensuremath{-}1.9\ifmmode\pm\else\textpm\fi{}0.2$ nm. The quadrupole moment of ${\mathrm{I}}^{127}$ as derived from the hfs of the visible spectrum and as derived from the atomic beam resonance technique published in the literature is discussed, and it is concluded that $Q({\mathrm{I}}^{127})=(\ensuremath{-}0.69\ifmmode\pm\else\textpm\fi{}0.03)\ifmmode\times\else\texttimes\fi{}{10}^{\ensuremath{-}24}$ ${\mathrm{cm}}^{2}$ including the polarization correction due to Sternheimer. Data concerning the hfs of the spectrum of Sb ii are discussed, and it is shown that they support the values $Q({\mathrm{Sb}}^{121})=(\ensuremath{-}0.53\ifmmode\pm\else\textpm\fi{}0.10)\ifmmode\times\else\texttimes\fi{}{10}^{\ensuremath{-}24}$ ${\mathrm{cm}}^{2}$ and $Q({\mathrm{Sb}}^{123})=(\ensuremath{-}0.68\ifmmode\pm\else\textpm\fi{}0.10)\ifmmode\times\else\texttimes\fi{}{10}^{\ensuremath{-}24}$ ${\mathrm{cm}}^{2}$ (including the polarization correction) that were deduced previously.