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Rho-axis-system hamiltonian for molecules with one large amplitude internal motion

机译:具有大幅度内运动的分子的Rho轴系统哈密顿量

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摘要

The rho-axis system and the rho-axis-system Hamiltonian were devised and formulated to describe the rotational-internal-rotational motion of molecules possessing certain local geometrical symmetries. Nevertheless,they were employed to molecules without the required symmetries and apparently lying outside the range of their applicability. To justify such applications and to facilitate first-principles calculation of the corresponding spectroscopic parameters,the rho-axis-system and the rho-axis system Hamiltonian must be derived without assuming or imposing symmetry constraints. A derivation satisfying this requirement is described,and the rho-axis method is extended to molecules having a large amplitude internal motion of any kind.
机译:设计并制定了流轴系统和流轴系统哈密顿量,以描述具有某些局部几何对称性的分子的内部旋转运动。然而,它们被用于没有所需对称性并且显然在其适用范围之外的分子。为了证明这种应用的合理性并促进相应光谱参数的第一性原理的计算,必须在不假设或不施加对称约束的情况下推导流轴系统和流轴系统哈密顿量。描述了满足该要求的推导,并且将流轴方法扩展到具有任何形式的大幅度内运动的分子。

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