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CI potential energy curves for three states of RuO~(2+)

机译:RuO〜(2+)三种状态的CI势能曲线

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Three low-lying states of RuO~(2+) are analyzed using large-scale configuration interaction (CI) calculations based on multireference wavefunctions. Relativistic effects are included using relativistic effective core potentials and a spin-orbit (SO) CI approach. The ground state is predicted to be a triply bonded system of 0~+ (~1Σ~+) symmetry having a dissociation energy of 83.8 kcal/mol, an equilibrium bond length of 1.55 and a vibrational frequency of 1227 cm~(-1). Two close-lying states (~3Φ) and (~3Δ) states have dissociation energies, bond lengths and frequencies of 82.2 and 68.5 kcal/mol, 1.83 and 1.90, and 974 and 974 cm~(-1), respectively. The states differ in energy at their respective minima by 551 and 4777 cm-1.
机译:使用基于多参考波函数的大规模配置相互作用(CI)计算,分析了RuO〜(2+)的三个低洼状态。使用相对论有效核心势和自旋轨道(SO)CI方法包括相对论效应。预测基态是0〜+(〜1Σ〜+)对称的三键体系,其解离能为83.8 kcal / mol,平衡键长为1.55,振动频率为1227 cm〜(-1)。 。两个接近的状态(〜3Φ)和(〜3Δ)状态的解离能,键长和频率分别为82.2和68.5 kcal / mol,1.83和1.90、974和974 cm〜(-1)。这些状态在各自的最小值处的能量差为551和4777 cm-1。

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