一硒化鈈是一種無機化合物,化學式為PuSe,它可以形成黑色晶體,難溶於水。[1][2]它可由三硒化二鈈和三氫化鈈反應得到,或由化學計量比的單質化合得到:
![{\displaystyle {\mathsf {2Pu_{2}Se_{3}+2PuH_{3}\ {\xrightarrow {1600^{o}C}}\ 4PuSe+3H_{2}}}}](https://wikimedia.org/api/rest_v1/media/math/render/svg/d03fa71301285b2f0813435ce8bcd74b0df9edab)
![{\displaystyle {\mathsf {Pu+Se\ {\xrightarrow {220-1000^{o}C}}\ PuSe}}}](https://wikimedia.org/api/rest_v1/media/math/render/svg/0aa45f44b22a4af749a484e9fa516b4628fc38b4)
一硒化鈈是立方晶系晶體,空間群Fm3m,晶胞參數a = 0.57934 nm,Z = 4,有NaCl結構。[3]它在高壓下發生相變,在20 GPa形成三方相,35 GPa形成立方CsCl相。[4]其磁化率遵循居里-外斯定律。[5]
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