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U.S.-Hungary Chemistry Research: Photoionization Study of Heats of Formation and Bond Energies of Organometallic Complexes

U.S.-Hungary Chemistry Research: Photoionization Study of Heats of Formation and Bond Energies of Organometallic Complexes
美国-匈牙利化学研究:有机金属配合物的生成热和键能的光电离研究
批准号:
0434302
负责人:
Tomas Baer
金额:
$3.29万
依托单位国家:
美国
项目类别:
Standard Grant
财政年份:
2004
资助国家:
美国
项目状态:
已结题
起止时间:
2004-09-15 至 2008-08-31

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中文摘要
翻译
这个由北卡罗来纳大学教堂山分校的Tamas Baer和布达佩斯Eotvos大学的Balint Sztaray和Laszlo Szepes合作的美国-匈牙利研究项目将研究能量选择离子的解离能和动力学。他们打算用阈值光电子-光离子符合(TPEPICO)质谱和光电子能谱技术来确定精确的电离和解离能。通过结合溶液和气相键能,研究小组希望了解溶剂化能。布达佩斯小组将在有机金属配合物的合成和反应以及测量低蒸气压样品的光电子能谱方面提供专业知识。教堂山小组在TPEPICO方面的专业知识将用于确定金属配体的解离极限。结果将产生关于生成热和键能的新的准确数据。这将增强我们开发模型的能力,并将单分子衰变的统计理论应用于广泛的复杂分子。成功将有助于确定分子的催化性质,并适用于各种合成方法。该化学项目通过使美国和中欧的专家能够在共同感兴趣和能力强的领域结合互补的人才和共享研究资源,实现了推进科学知识的计划目标。更广泛的影响包括通过在匈牙利机构的工作将美国学生引入国际研究界,并直接参与当前的热化学研究和光谱学技术的应用。
英文摘要
This U.S.-Hungarian research project between Tamas Baer of the University of North Carolina, Chapel Hill, and Balint Sztaray and Laszlo Szepes of Eotvos University, Budapest, will study the dissociation energies and dynamics of energy-selected ions. They intend to determine accurate ionization and dissociation energies with techniques using threshold photoelectron photoion coincidence (TPEPICO) mass spectroscopy and photoelectron spectroscopy. By combining solution and gas phase bond energies the team expects to learn about solvation energies.The Budapest group will contribute expertise in the synthesis and reactions of organometallic complexes as well as in measuring photoelectron spectra of low vapor pressure samples. The Chapel Hill group's expertise in TPEPICO will be employed to determine dissociation limits for metal ligands. Results should produce new accurate data on the heats of formation and bond energies. This would enhance our ability to develop models and apply statistical theory of unimolecular decay to a broad range of complex molecules. Success could help define catalytic properties of molecules with applicability in a variety of synthetic approaches.This chemistry project fulfills the program objective of advancing scientific knowledge by enabling experts in the United States and Central Europe to combine complementary talents and share research resources in areas of strong mutual interest and competence. Broader impacts include the introduction of U.S. students to the international research community through work at the Hungarian institution and direct involvement in current thermochemical research and application of spectroscopy techniques.
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会议论文
International Collaborative Photoionization Study of Heats of Formation and Bond Energies of Organometallic Complexes
Chemistry at Ultralow Temperatures using Superfluid Helium Droplets:
The Analysis, Reactions and Growth of Aerosol Particles Studied by Vacuum UV Photoionization Mass Spectrometry
Gas-Surface Chemistry and Analysis of Single Aerosol Particles
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