Institut für Physikalische Chemie, Universität Göttingen, Tammannstr. 6, 37077 Göttingen, Germany.
J Chem Phys. 2017 Oct 14;147(14):144305. doi: 10.1063/1.4989544.
C=O stretching vibrations of formic acid trimers are assigned on the basis of FTIR and Raman jet spectroscopy and further validated by an FTIR imaging study based on their aggregation behavior in supersonic expansions. The effect of shock waves on cluster formation and decomposition is probed by shifting them into the field of view of the focal plane array detector. A double slit nozzle is presented that merges two supersonic jets for a more localized study of such shock waves.
基于傅里叶变换红外光谱（FTIR）和拉曼喷射光谱学，对甲酸三聚体的 C=O 伸缩振动进行了分配，并通过基于其在超音速膨胀中聚集行为的 FTIR 成像研究进一步验证。通过将它们转移到焦平面阵列探测器的视场中，探测冲击波对团簇形成和分解的影响。提出了一种双狭缝喷嘴，将两个超音速射流合并，以便更局部地研究这种冲击波。
