Ion core structure in (CS2)n+ and (CS2)n− (n=3–10) studied by infrared photodissociation spectroscopy

摘要: Infrared photodissociation spectra of (CS2)n+ and (CS2)n− with n=3–10 are measured in the 1100–2000cm−1 region. All clusters exhibit three bands at ∼1410, ∼1490, ∼1540cm−1. The intensity 1540cm−1 band relative to those other increases increasing cluster size, indicating that is assignable antisymmetric CS stretching vibration solvent CS2 molecules clusters. On basis density functional theory calculations, 1410 1490cm−1 assigned vibrations C2S4+ cation core a C2 form. show two around 1215 1530cm−1. Similar case clusters, latter ascribed molecules. Vibrational frequency analysis CS2− C2S4− suggests 1215cm−1 attributed anion C2v structure.