Spectroscopic Probes of Transition Metal Ions in a Microsolution Environment

该奖项是作为博士的启动补助金增量。 林玛丽A.波西博士后研究奖学金 化学奖，以支持她在范德比尔特的研究 大学这项研究关注的是 溶剂化的过渡金属离子在微溶液环境中。 调查当地微观力量的细节 离子和它最近的邻居之间的联系， 实验挑战，因为体积的影响 溶剂对可测量性质的影响往往掩盖了 方面的影响.在这项研究中，电喷雾离子源耦合 用质谱法将允许二价过渡金属 在受控的溶剂环境中分离阳离子， 气相团簇，然后可以用激光探测 谱当地环境的限制应 揭示了振动分辨的电子吸收光谱， 提供结构信息以及 金属-配位体键和配位体的强扰动 离子场。 %%% 对离子-溶剂相互作用的深入理解将 挑战理论家开发更精确的潜力 能源表面，并最终提供了一个基础， 学习如何操纵溶剂化的化学反应性 离子。

This award is made as the starter grant increment of Dr. Lynmarie A. Posey's Postdoctoral Research Fellowship in Chemistry Award in support of her research at Vanderbilt University. The research is concerned with the behavior of solvated transition metal ions in a microsolution environment. Investigating the details of the local microscopic forces between an ion and its nearest neighbors presents an experimental challenge because the influence of the bulk solvent on measurable properties often overshadows local effects. In this research, an electrospray ion source coupled with mass spectrometry will allow divalent transition metal cations to be isolated in a controlled solvent environment as gas phase clusters, which can then be probed using laser spectroscopy. Restriction of the local environment should reveal vibrationally resolved electronic absorption spectra, providing structural information as well as the strength of the metal-ligand bond and perturbation of the ligand by the strong field of the ion. %%% The enhanced understanding of ion-solvent interactions will challenge theoreticians to develop more accurate potential energy surfaces and ultimately provide a foundation for learning how to manipulate the chemical reactivity of solvated ions.