Preparation and Characterization of Uranium-Iron Triple-Bonded UFe(CO)3- and OUFe(CO)3- Complexes
Preparation and Characterization of Uranium-Iron Triple-Bonded UFe(CO)3- and OUFe(CO)3- Complexes
复制标题
铀铁三键UFe(CO)(3)(-)和OUFe(CO)(3)(-)配合物的制备及表征
DOI：
10.1002/anie.201703525
复制
发表时间：
2017-06-06
影响因子：
16.6
通讯作者：
Zhou, Mingfei
中科院分区：
文献类型：
--
作者：
Chi, Chaoxian;Wang, Jia-Qi;Zhou, Mingfei
本文报道了用激光蒸发超音速离子源在气相中制备UFe（CO）（3）（-）和OUFe（CO）（3）（-）配合物。这些化合物经过质量选择，并通过红外光解离光谱和最先进的量子化学研究进行表征。U 6d/5 f和Fe 3d轨道之间存在前所未有的三键，两种配合物中都具有一个共价sigma键和两个Fe与U配价pi键。发现铀和铁元素分别以独特的U（I或III）和Fe（-II）氧化态存在。这些发现表明，可能存在一个完整的家庭，稳定的df-d多键的氟元素过渡金属化合物尚未完全认识到日期。
We report the preparation of UFe(CO)(3)(-) and OUFe(CO)(3)(-) complexes using a laser-vaporization supersonic ion source in the gas phase. These compounds were mass-selected and characterized by infrared photodissociation spectroscopy and state-of-the-art quantum chemical studies. There are unprecedented triple bonds between U 6d/5f and Fe 3d orbitals, featuring one covalent sigma bond and two Fe-to-U dative pi bonds in both complexes. The uranium and iron elements are found to exist in unique formal U(I or III) and Fe(-II) oxidation states, respectively. These findings suggest that there may exist a whole family of stable df-d multiple-bonded f-element-transition-metal compounds that have not been fully recognized to date.