Abstract Rotational spectra of seven isotopomers of the weakly bound complex NeCO 2 , i.e., NeCO 2 , 22 NeCO 2 , Ne 13 CO 2 , 22 Ne 13 CO 2 , Ne 18 O 13 CO, Ne 17 OCO, and 22 Ne 17 OCO, were measured using a pulsed molecular beam Fourier transform microwave spectrometer. Rotational and centrifugal distortion constants as well as the nuclear quadrupole coupling constants of 17 O in Ne 17 OCO and 22 Ne 17 OCO were determined. The obtained constants were used to derive structural and force field information. The parameters obtained are discussed, and compared with those of other, previously measured, rare gas–CO 2 complexes. The 17 O nuclear quadrupole coupling constants were analyzed and interpreted in terms of the angular anisotropy of the intermolecular potential energy surface.

中文翻译：

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NeCO2 同位素的旋转光谱

摘要 弱结合配合物 NeCO 2 的七种同位素，即 NeCO 2 、22 NeCO 2 、Ne 13 CO 2 、22 Ne 13 CO 2 、Ne 18 O 13 CO、Ne 17 OCO 和 22 Ne 17 OCO 的旋转光谱，使用脉冲分子束傅里叶变换微波光谱仪测量。测定了 Ne 17 OCO 和 22 Ne 17 OCO 中 17 O 的旋转和离心畸变常数以及核四极耦合常数。获得的常数用于推导结构和力场信息。讨论了获得的参数，并与其他先前测量的稀有气体-CO 2 复合物的参数进行了比较。根据分子间势能表面的角各向异性分析和解释 17 O核四极耦合常数。