The structure of amorphous U₂O₇ has been examined by extended x-ray absorption near edge spectroscopy (EXAFS) and modelled using density functional theory (DFT) simulations. A hybridised metastudtite-UO₃ structure is proposed, consisting of peroxide bonds (O-O_peroxo), uranyl units (U=O_yl) and U-O bonding. Experimental and simulated X-ray diffraction (XRD) is used to confirm the proposed structure.

中文翻译：

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关于通过扩展X射线吸收光谱法和DFT模拟进一步阐明无定形U ₂ O ₇结构的简短交流

非晶态U ₂ O ₇的结构已通过扩展X射线吸收近边缘光谱（EXAFS）进行了检查，并使用密度泛函理论（DFT）进行了建模。提出了一种杂化的辉长石-UO ₃结构，该结构由过氧化物键（OO _peroxo），铀酰单元（U = O _yl）和UO键组成。实验和模拟X射线衍射（XRD）用于确认提出的结构。