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High-pressure phases and pressure-induced phase transition of MoN6 and ReN6

机译:高压相和压力诱导的MON6和REN6的相变

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Transition metal nitrides have been widely used in many scientific and technical areas because of their unique physical and mechanical properties. We report two new nitrogen-rich transition metal nitrides, MoN6 and ReN6, by crystal structure searching technique. Under high pressure, MoN6 will undergo phase transition (from R-3m to Pm-3 phase) at 54 GPa, and ReN6 always keep the R-3m phase in the pressure range from 50 to 100 GPa. There are benzene-like six-membered "N6" rings with nitrogen single bonds in the R-3m phase structures, indicating that MoN6 and ReN6 are expected to be the high-energy-density materials. (C) 2019 Elsevier B.V. All rights reserved.
机译:由于其独特的物理和机械性能,过渡金属氮化物已被广泛应用于许多科学和技术领域。 通过晶体结构搜索技术,我们报告了两种新的富含氮过渡金属氮化物,MON6和REN6。 在高压下,MON6将在54GPa处进行相转变(从R-3M至PM-3相),REN6始终将R-3M相的压力保持在50至100GPa的压力范围内。 存在苯相同的六元“N6”环,R-3M相结构中具有氮单键,表明蒙6和REN6预期是高能密度的材料。 (c)2019 Elsevier B.v.保留所有权利。

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