The literature on the high-resolution spectroscopic investigation of molecular complexes containing small polyatomic species excited in their vibrational overtones is reviewed. They turn out to be complexes containing acetylene, ammonia and water, mainly excited in their 2CH, 2NH and 2OH vibrations, respectively. The majority of results published on these systems was obtained using an instrumental set-up based on cw-cavity ring-down spectroscopy, built in the ‘Laboratoire de Chimie quantique et Photophysique’ at the ‘Université libre de Bruxelles’ (CQP/ULB) and named FANTASIO+, which is described. It allowed retrieving upper state vibrational predissociation lifetimes, which are highlighted together with more results. The sequence of experiments at CQP/ULB prior and along the line of those supporting the investigation of molecular complexes is briefly illustrated.

中文翻译：

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含有小多原子分子的分子复合物的泛音光谱

综述了对包含在振动泛音中激发的小多原子物种的分子复合物进行高分辨率光谱研究的文献。结果证明它们是含有乙炔、氨和水的配合物，主要分别在 2CH、2NH 和 2OH 振动中激发。在这些系统上发表的大部分结果是使用基于 cw 腔衰荡光谱的仪器设置获得的，该仪器设置在 'Université libre de Bruxelles' (CQP/ULB) 的'Laboratoire de Chimie quantique et Photophysique' 中并命名为 FANTASIO+，如描述。它允许检索高态振动预解离寿命，这些寿命与更多结果一起突出显示。