Structure and spectroscopy of CuH prepared via borohydride reduction.
Structure and spectroscopy of CuH prepared via borohydride reduction.
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DOI：
10.1107/s2052520615015176
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发表时间：
2015-12-01
期刊：
影响因子：
--
通讯作者：
Parker SF
中科院分区：
文献类型：
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作者：
Bennett EL;Wilson T;Murphy PJ;Refson K;Hannon AC;Imberti S;Callear SK;Chass GA;Parker SF
我们表明，由硼氢化物还原的CuII盐的CuH由一个核心的CuH的纤锌矿结构和水的外壳的组合的衍射和光谱方法。我们还表明，壳是可交换的乙醇。氢化亚铜（CuH）是第一个被发现的二元金属氢化物（1844年），其独特之处在于它是在环境温度下在溶液中合成的。有几种合成CuH的途径，其中之一涉及通过硼氢化物离子还原CuSO4·5H2O的水溶液。尚未对该程序的产品进行广泛表征。使用组合的衍射方法（X射线和中子）和非弹性中子散射光谱，我们表明，从硼氢化物路线的CuH具有相同的块状结构，由其他路线产生的CuH。我们的工作表明，该产品由一个核心的CuH与水的外壳，这可能在很大程度上被乙醇取代。这提供了修改由水性路线产生的CuH的性质的可能性。
We show by a combination of diffraction and spectroscopic methods that CuH produced by borohydride reduction of a CuII salt consists of a core of CuH with the Wurtzite structure and a shell of water. We also demonstrate that the shell is exchangeable for ethanol. Copper(I) hydride (cuprous hydride, CuH) was the first binary metal hydride to be discovered (in 1844) and is singular in that it is synthesized in solution, at ambient temperature. There are several synthetic paths to CuH, one of which involves reduction of an aqueous solution of CuSO4·5H2O by borohydride ions. The product from this procedure has not been extensively characterized. Using a combination of diffraction methods (X-ray and neutron) and inelastic neutron scattering spectroscopy, we show that the CuH from the borohydride route has the same bulk structure as CuH produced by other routes. Our work shows that the product consists of a core of CuH with a shell of water and that this may be largely replaced by ethanol. This offers the possibility of modifying the properties of CuH produced by aqueous routes.