Rotational Spectroscopy of Small Clusters

小团簇的旋转光谱

• 批准号: 9117199
• 负责人: H. Gutowsky
• 金额: $ 33.85万
• 依托单位: University of Illinois at Urbana-Champaign
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1991
• 资助国家: 美国
• 起止时间: 1991-12-01 至 1995-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9117199&HistoricalAwards=false
• 关键词: Rotational; Spectroscopy; Small; Clusters

In this project in the Experimental Physical Chemistry Program of the Chemistry Division, Professor Gutowsky of the University of Illinois at Urbana will use high-resolution rotational spectroscopy to gain structural information of small cluster molecules created in supersonic jet expansions. The clusters are formed by van der Waals, electrostatic, or hydrogen bonding forces. Cluster isomers, high-temperature species, and excited-state and high-energy conformational forms are among the species to be studied. This work should help elucidate the mechanism by which inter- and intramolecular forces govern the dynamics of condensed-phase forms. %%% Cluster molecules are the intermediate species formed when gaseous molecules condense to form liquids or solids. The study of the structure and properties of clusters is useful in understanding such diverse phenomena as molecular orientation and mobility on catalytic surfaces as well as protein folding. The work supported here examines clusters formed by a number of different forces, from very weak physical attraction to almost chemically strong bonds.

在化学系实验物理化学项目的这个项目中，伊利诺伊大学厄巴纳分校的古托夫斯基教授将使用高分辨率旋转光谱来获取超音速射流膨胀中产生的小簇分子的结构信息。 簇是由范德华力、静电力或氢键力形成的。 待研究的物种包括簇异构体、高温物种、激发态和高能构象形式。 这项工作应该有助于阐明分子间力和分子内力控制凝聚相形式动力学的机制。 %%% 簇分子是气态分子凝结形成液体或固体时形成的中间物质。 对簇结构和性质的研究有助于理解催化表面上的分子取向和移动性以及蛋白质折叠等不同现象。 这里支持的工作检查了由许多不同的力形成的簇，从非常弱的物理吸引力到几乎化学强的键。