We disclose relativistic multiconfiguration Dirac–Hartree–Fock (MCDHF) spectrum calculations for $SnXLIX$. Energy levels, weighted oscillator strengths, isotope shifts, hyperfine structure and Landé g${}_J$ factors are calculated for 127 odd- and even-parity states as well as lifetimes and transition rates between these states. To scrutinize the accuracy of our results, we have implemented parallel calculations using a Flexible Atomic Code (FAC) by introducing the Second-Order Many-Body Perturbation Theory (MBPT) method. Additionally, the Breit interaction and leading quantum electrodynamic effects (QED) are included as perturbations in extensive relativistic configuration interaction (RCI) calculations. We signal that, our calculations for $SnXLIX$ are made for the first time and they provide to date the most accurate and complete atomic data related to this ion.

我们公开了相对论多配置Dirac–Hartree–Fock（MCDHF）频谱计算，用于 $\mathrm{小号}ñX\mathrm{大号}\mathrm{一世}X$。能级，加权振荡器强度，同位素位移，超精细结构和Landég${}_{Ĵ}$计算127个奇偶校验状态的因数，以及这些状态之间的寿命和转换率。为了检查结果的准确性，我们通过引入二阶多体扰动理论（MBPT）方法，使用弹性原子代码（FAC）进行了并行计算。此外，在广泛的相对论配置相互作用（RCI）计算中，还包括了Breit相互作用和领先的量子电动力学效应（QED）作为扰动。我们表示，我们对$\mathrm{小号}ñX\mathrm{大号}\mathrm{一世}X$ 首次制成，它们提供了迄今为止与该离子有关的最准确和完整的原子数据。