Searching for new symmetry species of CH5+ – From lines to states without a model

Searching for new symmetry species of CH5+ – From lines to states without a model
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寻找 CH5 的新对称性 â 从线到无模型的态

DOI:
10.1016/j.jms.2017.08.008
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发表时间:
2017
影响因子:
1.4
通讯作者:
O. Asvany
O. Asvany
中科院分区:
物理与天体物理4区
文献类型:
--
作者:
S. Brackertz;S. Schlemmer;O. Asvany

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CH 5+是一种非常灵活的分子的原型,迄今为止,它的量子态还没有解析描述。因此,其量子态的重建依赖于方法,如寻找转振跃迁的组合差的积累。使用科隆实验室[1]的可用高分辨率数据,通过使用核密度估计的性质以及新的组合方法来评估所发现的累积,改进了这种重建。发现了两个新的对称集,并扩展了已知的对称集,分配了2897条测量线中的1063条,这比以前工作的65条分配有了显着的改进。这不仅使我们能够重建更多的部分的基态能级,但也振动激发态的CH 5+。
CH 5+ is a prototype of an extremely flexible molecule for which the quantum states have eluded an analytical description so far. Therefore, the reconstruction of its quantum states relies on methods as eg the search for accumulations of combination differences of rovibrational transitions. Using the available high resolution data of the Cologne laboratories [1], this reconstruction has been improved by using the properties of kernel density estimators as well as new combinatorial approaches to evaluate the found accumulations. Two new symmetry sets have been discovered, and the known ones extended, with 1063 of the 2897 measured lines assigned, which is a significant improvement over the 65 assignments of the previous work. This allowed us not only to reconstruct more parts of the ground state levels, but also of the vibrationally excited states of CH 5+.
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