The pure rotational spectrum of the ¹⁴NO⁺ cation has been revisited and its fundamental transition measured for the first time. Using a cryogenic ion trap apparatus and applying an action spectroscopy scheme, the transitions $J^{\prime }\leftarrow J^{″}=1\leftarrow 0$ through $J^{\prime }\leftarrow J^{″}=3\leftarrow 2$ have been detected, exhibiting well-resolved hyperfine structure from the presence of the ¹⁴N nucleus. Compared to former investigations, the spectroscopic constants are considerably improved and the nuclear spin - rotation interaction constant determined for the first time.

中文翻译：

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NO ⁺的基本旋转跃迁

¹⁴ NO ⁺阳离子的纯旋转光谱已被重新研究，并首次测量了其基本跃迁。使用低温离子阱设备并应用作用谱方案，可以实现离子对的转变。${Ĵ}^{\prime }\leftarrow {Ĵ}^{\text{'}\text{'}}=\mathrm{1个}\leftarrow 0$ 通过 ${Ĵ}^{\prime }\leftarrow {Ĵ}^{\text{'}\text{'}}=3\leftarrow \mathrm{2个}$已经检测到，由于存在¹⁴ N核，其具有良好解析的超精细结构。与以前的研究相比，光谱常数得到了显着改善，并且首次确定了核自旋-旋转相互作用常数。