Molecular Structure and the Effect of Large-Amplitude Vibration of Carbon Suboxide as Studied by Gas Electron Diffraction
作者： Mitsutoshi Tanimoto , Kozo Kuchitsu , Yonezo Morino
DOI: 10.1246/BCSJ.43.2776
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摘要: The molecular structure of carbon suboxide, C3O2, has been studied by the sector-micro-photometer method gas electron diffraction. C=O and C=C distances (rg) have determined to be 1.1632±0.0013 A 1.2894±0.0022 A, respectively, where uncertainties represent estimated limits error. observed mean amplitudes for three nonbonded atom pairs their shrinkages are found much larger than those expected ordinary molecules, with linear framework. usual harmonic approximation up quadratic terms displacements cannot account values in this molecule. This indicates that πu bending vibration ν7 a very low frequency (an effective being about 68 cm−1) is essentially motion valence angle central atom, agreement recent spectroscopic studies. effect large-amplitude on detail using model, which assumes t...
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