在金属有机框架中稳定原位形成前所未有的氧化镎轮簇。
In Situ Formation of Unprecedented Neptunium-Oxide Wheel Clusters Stabilized in a Metal-Organic Framework.
作者信息
Gilson Sara E, Li Peng, Szymanowski Jennifer E S, White Jacob, Ray Debmalya, Gagliardi Laura, Farha Omar K, Burns Peter C
机构信息
Department of Chemistry and Biochemistry , University of Notre Dame , Notre Dame , Indiana 46556 , United States.
Department of Chemistry and Chemical and Biological Engineering , Northwestern University , 2145 Sheridan Road , Evanston , Illinois 60208 , United States.
出版信息
J Am Chem Soc. 2019 Jul 31;141(30):11842-11846. doi: 10.1021/jacs.9b06187. Epub 2019 Jul 23.
An isostructural series of Np(V) MOFs with -topology were synthesized and characterized. X-ray diffraction data revealed an unusual wheel-shaped node of 18 neptunyl polyhedra stabilized in the framework. Strong distortion in local coordination of the neptunium atoms is evidenced by Np-O bond lengths that lie outside the typical range for Np(V). The structure was further interrogated by Raman spectroscopy and density functional theory calculations to assign the vibrational modes.
合成并表征了一系列具有-拓扑结构的Np(V)金属有机框架（MOF）。X射线衍射数据揭示了框架中稳定存在的由18个镎酰多面体组成的异常轮状节点。镎原子局部配位的强烈畸变由超出Np(V)典型范围的Np-O键长所证实。通过拉曼光谱和密度泛函理论计算对该结构进行了进一步研究，以确定振动模式。
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