Infrared Laser Spectroscopy

红外激光光谱

• 批准号: 8810519
• 负责人: Robert Curl
• 金额: --
• 依托单位: William Marsh Rice University
• 依托单位国家: 美国
• 项目类别: Continuing grant
• 财政年份: 1988
• 资助国家: 美国
• 起止时间: 1988-11-01 至 1992-10-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8810519&HistoricalAwards=false
• 关键词: Infrared; Laser; Spectroscopy

This research, part of the Experimental Physical Chemistry Program, uses the techniques of laser flash photolysis to produce radicals and transient species, which are then studied by infrared spectroscopic techniques. This research will produce an understanding of the structure and dynamics of prototypical transient species of importance to combustion and chemical bonding. Techniques of time-resolved spectroscopy will be utilized to study the energy levels and dynamics of small radicals such as C2H, C4H, vinyl, vinylidene and allyl. In a second study the absorption spectra of larger radicals will be studied after supersonic cooling. The cooling will reduce the temperature and the number of populated ro-vibrational levels, thereby simplifying the interpretation of the infrared spectra of these species.

这项研究是实验物理化学计划的一部分，利用激光闪光光解技术产生自由基和瞬态物质，然后通过红外光谱技术进行研究。 这项研究将加深对对燃烧和化学键合重要的原型瞬态物质的结构和动力学的理解。 时间分辨光谱技术将用于研究C2H、C4H、乙烯基、亚乙烯基和烯丙基等小自由基的能级和动力学。 在第二项研究中，将在超音速冷却后研究较大自由基的吸收光谱。 冷却将降低温度和聚集的旋转振动水平的数量，从而简化对这些物种的红外光谱的解释。