Cederberg J, Nichol J, Frodermann E, Tollerud H, Hilk G, Buysman J, Kleiber W, Bongard M, Ward J, Huber K, Khanna T, Randolph J, Nitz D
Department of Physics, St. Olaf College, Northfield, Minnesota 55057, USA.
J Chem Phys. 2005 Oct 1;123(13):134321. doi: 10.1063/1.2052588.
A high-precision examination of the hyperfine spectrum of 6LiI in comparison with 7LiI shows a shift in the iodine nuclear electric quadrupole moment that cannot be accounted for by a model in which the electric field gradient at the iodine site is assumed to depend only upon the internuclear distance between Li and I. The other hyperfine interactions are consistent between the two isotopomers, including the previously reported electric hexadecapole interaction of the iodine nucleus.
对(^{6}LiI)与(^{7}LiI)的超精细光谱进行的高精度比较显示，碘核电四极矩发生了位移，而在假设碘位点处的电场梯度仅取决于锂和碘之间的核间距的模型中，这种位移无法得到解释。两种同位素异构体之间的其他超精细相互作用是一致的，包括先前报道的碘核的电十六极相互作用。
