ELECTRIC AND MOLECULAR STRUCTURAL INVESTIGATIONS

电和分子结构研究

• 批准号: 3854786
• 负责人: R MCDIARMID
• 金额: --
• 依托单位: NATIONAL INSTITUTE OF DIABETES AND DIGESTIVE AND KIDNEY DISEASES
• 依托单位国家: 美国
• 资助国家: 美国
• 起止时间: 至
• 项目状态: 未结题
• 来源: https://reporter.nih.gov/project-details/3854786
• 关键词: acetone; chemical bond resonance; chemical structure; diene; electronic spectra; molecular energy level; molecular shape; optical polarization; photochemistry; photon absorptiometry; saturated /unsaturated bonds

The one- and two-photo resonant spectra of the 193 nm region of the spectrum of cyclopentadiene was measured and analyzed. The optical (1-photon) spectrum was shown to be composed of two interleaved 3p- Rydberg <- X transitions. From these spectra, the C=C bonds were deduced to be elongated in these excited states. The 2-photon spectrum was shown, by polarization-selection, to be dominated by totally symmetric false origins to two of the 3p-Rydberg <- X transitions. The absorption spectrum of the 3s-Rydberg <- X transition of acetone was measured and analyzed. The previously proposed analysis of this spectrum and model for 193 nm photodissociation of acetone were demonstrated to be incorrect.

193nm区域的单光和双光共振光谱