Spectroscopy of metal-containing molecules, ions

该研究计划主要关注金属物种的性质和反应。建议的研究可分为三个主要领域：第一个领域涉及通过解释不同波长的光与感兴趣的分子相互作用的方式来研究感兴趣的分子。我们将使用(1)激光形成金属原子，并将这些原子与活性分子冻结以分离其反应产物，或(2)我们将用电子轰击感兴趣的分子的混合物，然后将离子反应和分解产物冻结在固体惰性气体中。我们打算研究烯烃与早期过渡金属的反应，以及著名的“酮-烯醇”转化的机理。其中酮和醛以C=C双键转化为醇。第二个领域专注于纳米级极小金属颗粒(纳米颗粒)在低温基质中的光谱和反应活性。我们目前正在开发基于基质隔离分析纳米颗粒反应产物的协议，并将使用红外光吸收作为我们的结构表征技术。第三个领域是捕获和表征带电分子和原子与小分子反应的产物，目前正在Trent组装的分子束装置中。这些离子将通过激光蒸发金属目标，然后在放电中电离而形成。在进入反应区之前，产品将通过基质分离和质谱学技术相结合的方式进行表征。

The research program is broadly focused on the properties and reactions of metallic species. The research proposed can be divided into three major areas: The first of these involves the study of molecules of interests by interpreting the way in which different wavelengths of light interact with them.  We will use (1) lasers to form metal atoms, and freeze these atoms with reactive molecules to isolate their reaction products, or (2) we will bombard mixtures of molecules of interest with electrons, and subsequently freeze the ion reaction and decomposition products in a solid inert gas.  We intend to study the reactions of alkenes with early transition metals, and the mechanism of the famous "keto-enol" transformation, in which ketones and aldehydes are converted to alcohols with a C=C double bond.   The second area is focused on the spectroscopy and reactivity of very small metal particles with sizes on the nanometer scale (nanoparticles) in low-temperature matrices.  We are currently developing protocols for matrix-isolation based analysis of nanoparticle reaction products, and will employ infrared light absorption as our structure characterization technique.   The third area is the trapping and characterization of the products of charged molecule and atom reactions with small molecules in a molecular beam apparatus, currently being assembled at Trent.  Ions will be formed by laser vaporization of metal targets, followed by ionization in an electric discharge, before entering a reaction zone.  The products will be characterized by a combination of matrix-isolation and mass spectrometry techniques.