HIGH OXIDATION STATE TRANSITION METAL CHEMISTRY

这项研究的长期目标是确定分子 氮可以在环境条件下还原成氨， 明确定义的过渡金属络合物、质子和电子，和/或 一些含氮的有机分子， 化学计量的，最终催化的。 近期 目的是合成新的二氨基或三氨基/给体配体， 含有这些配体的（主要是）钼络合物的化学， 特别是与还原二氮有关的化学， 包括含有N2 RX（X=0-4）或NRy的络合物的化学 （y=0-3）配体。 一般来说，我们希望确定哪些原则是 具有根本性和普遍性的意义， 在一个或两个金属中心（同双金属或 异源）。 我们将重点关注钼作为活化金属， 二氮，虽然类似的化学钨将进行 以便与钼进行比较。 最常见的金属是 在杂原子化合物化学中使用的将是铁。

The long-term objectives of this research are to determine how molecular nitrogen can be reduced to ammonia under ambient conditions employing a well-defined transition metal complex, protons, and electrons, and/or to some organic molecule that contains nitrogen, at first stoichiometrically, and ultimately catalytically. The near-term objective is to prepare new di- or triamido/donor ligands and explore the chemistry of (primarily) Mo complexes that contain these ligands, especially chemistry that is relevant to the reduction of dinitrogen, including the chemistry of complexes that contain N2RX (X=0-4) or NRy (y=0-3) ligands. In general we wish to determine what principles are of fundamental and general significance to the activation and reduction of dinitrogen at one or two metal centers (homobimetallic or heterobimetallic). We will focus molybdenum as the activating metal for dinitrogen, although analogous chemistry of tungsten will be carried out in order to compare it to molybdenum. The most common metal to be employed in heterobimetallic chemistry will be iron.