Mechanistic Organic Chemistry of Relevance to the Interstellar Medium.

有了这个更新奖，有机和有机和高分子化学计划和银河天文学计划支持化学系教授罗伯特J麦克马洪在威斯康星州，麦迪逊，威斯康星大学的工作。 该研究将扩展PI对可能存在于星际介质（ISM）中的活性有机分子的合成和表征的研究。 PI将合成碳链物种和缺氢芳烃，通过基质分离和ESR光谱结合量子化学计算对其进行表征，并研究其光化学。 由于弥漫星际带，即近红外到近紫外的散射，通常被假设来自弥漫ISM中的碳链分子或芳香族化合物，这些研究将有助于确定负责这些带的特定分子的身份。这些高能分子的研究，包括与实验室天体物理学家的密切合作，预计将提供重要的基本信息，将增加我们对星际分子和这些物种作为反应中间体的动力学的理解。

With this renewal award, the Organic and Organic and Macromolecular Chemistry Program and the Galactic Astronomy Program supports the work of Professor Robert J. McMahon of the Department of Chemistry at the University of Wisconsin, Madison, WI. The research will extend the PI's studies of the synthesis and characterization of reactive organic molecules that may be present in the interstellar medium (ISM). The PI will synthesize carbon chain species and hydrogen deficient aromatics, characterize them by matrix isolation and ESR spectroscopy combined with quantum chemical calculations, and study their photochemistry. Since the diffuse interstellar bands, absorptions in the near-IR to near-UV, are often hypothesized to arise from either carbon chain molecules or aromatics in the diffuse ISM, these studies will aid in establishing the identity of the specific molecules responsible for these bands.These investigations of energetic molecules, which include strong partnerships with laboratory astrophysicists, are expected provide important fundamental information that will increase our understanding of interstellar molecules and of the dynamics of such species as reactive intermediates.