High Resolution Spectroscopy of 3d Transition Metal Species: Chemical Insights into Organometallic Bonding

亚利桑那大学的Lucy Ziurys得到实验物理化学计划的支持，使用4-680 GHz范围内的高分辨率气相光谱研究过渡金属化合物的相关3D模型系统。 这种技术在研究这类物质时特别有用，因为基本的分子性质可以直接从光谱中提取出来。 感兴趣的分子几乎完全是自由基和分子离子，并分为四类：（1）金属单甲基中性和阳离子物质，包括金属镍、锰和铁，（2）早期3D金属氰化物/异氰化物，其中金属是钛、钒或钪，（3）金属单羰基自由基和缔合离子，和（4）金属氧化物簇，例如FeO和MnO的阳离子。 过渡金属在现代化学中发挥着广泛而多样的作用，包括有机和无机合成、工业催化、材料科学和生物医学科学。 尽管它们在工业和学术领域无处不在，但过渡金属的化学性质远未被理解。该研究项目将带来有关过渡金属和分子的新知识，这些知识可能会影响催化剂设计等众多应用。从事该项目的学生正在接受物理化学实验技术的教育，并为具有挑战性的技术职业做准备。

Lucy Ziurys of the University of Arizona is supported by the Experimental Physical Chemistry Program to investigate model systems of relevant 3d of transition metal compounds using high resolution gas-phase spectroscopy in the range of 4-680 GHz. This technique is particularly useful in the investigation of such species because basic molecular properties can be directly extracted from the spectra. The molecules of interest are almost entirely free radicals and molecular ions, and fall into four classes: (1) metal monomethyl neutral and cationic species including the metals nickel, manganese, and iron, (2) early 3d metal cyanides/isocyanides where the metal is titanium, vanadium, or scandium, (3) metal monocarbonyl radicals and associated ions, and (4) metal oxide clusters, such as the cations of FeO and MnO. These molecules are of fundamental interest for catalysis, C-H/C-C bond activation reactions, and biochemical systems.Transition metals play a wide and varied role in modern chemistry, including organic and inorganic synthesis, industrial catalysis, materials science, and in biomedical sciences. Despite their ubiquitous presence in both industrial and academic sectors, the chemistry of transition metals is far from understood. This research project will lead to new knowledge about transition metals and molecules that could impact numerous applications such as catalyst design. Students who work on this project are being educated in experimental techniques in physical chemistry, and being prepared for challenging technical careers.