Solution Thermochemical Investigation of Iron and Ruthenium Organometallic Complexes

9305492 Nolan凭借该奖项，无机，生物无机和有机化学计划为新奥尔良大学化学系的Steven P. Nolan博士确定有机金属化合物的键结构提供支持。 金属氢化物，金属烷基，金属芳烃，金属二烯，金属膦，和金属金属8族金属的键能将使用溶液量热法。 将特别强调均相催化中感兴趣的铁和钌配合物。 例如，四羰基铁衍生物将用于测定烯烃-铁键强度，环戊二烯基钌物种将用于研究一系列二烯-钌键。 将尝试确定钌与杂环化合物的键强度，这些杂环化合物与加氢脱氮、加氢脱硫和硅氢化有关。 热力学数据对于有机金属化学和催化的理论和应用研究都是非常重要的，但关于第8族有机金属键强度的数据相对较少。 了解催化反应中步骤的能量学对于开发新的和更有效的催化剂是有价值的，所述催化剂可用于例如化学工业中的加氢裂化或烯烃异构化反应。 ***

9305492 Nolan With this award, the Inorganic, Bioinorganic, and Organometallic Chemistry Program provides support for determining bond enthalpies of organometallic compounds by Dr. Steven P. Nolan of the Chemistry Department, University of New Orleans. Metal-hydride, metal-alkyl, metal-arene, metal-diene, metal-phosphine, and metal-metal bond energies of group 8 metals will be found using solution calorimetric methods. Special emphasis will be placed on iron and ruthenium complexes of interest in homogeneous catalysis. For example, tetracarbonyliron derivatives will be used in the determination of olefin-iron bond strengths and cyclopentadienylruthenium species will be used to investigate a series of diene-ruthenium bonds. Attempts will be made to determine bond strengths of ruthenium with heterocyclic compounds which are relevant to hydrodenitrogenation, hydrodesulfurization, and hydrosilation. %%% Thermodynamic data are fundamentally important for both theoretical and applied research in organometallic chemistry and catalysis, yet relatively little data are available on Group 8 organometallic bond strengths. Knowing the energetics of steps in a catalytic reaction is valuable for the development of new and more effective catalysts useful, for example, in hydroformylation or alkene isomerization reactions in the chemical industry. ***