Hydrofluxes are hydrated salts with melting points well below that of the dehydrated salt and boiling points well above that of water, affording a reaction medium, in which mild temperatures and pressures can be accessed for the synthesis of materials. Herein, the use of alkali metal hydroxide hydrofluxes for the synthesis of single crystal α-Na2 NpO4 is described, and the single crystal X-ray structure of α-Na2 NpO4 , along with its X-ray absorption spectra and vibrational spectra, is reported. The ability to synthesize complex oxides of the actinides, in particular, transuranium materials, under mild conditions will serve to advance our ability to explore the structure-property relationships of the f elements.

中文翻译：

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碱金属氢氧化物助熔剂在单晶体三元Act系氧化物合成中的应用。

Hydroflux是水合盐，其熔点远低于脱水盐的熔点，沸点远高于水的沸点，提供了一种反应介质，可以在其中使用温和的温度和压力来合成材料。本文描述了碱金属氢氧化物助熔剂在合成单晶α-Na2NpO4中的用途，并报道了α-Na2NpO4的单晶X射线结构及其X射线吸收光谱和振动光谱。 。在温和条件下合成the系元素特别是跨铀材料的复合氧化物的能力将有助于提高我们探索f元素的结构性质关系的能力。