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AnSe n (An = Th, U, Np, Pu, Am, or Cm) Coordination Polyhedra in Crystal Structures
Radiochemistry ( IF 0.9 ) Pub Date : 2020-09-06 , DOI: 10.1134/s1066362220040025
V. N. Serezhkin , M. Albakajaji , D. V. Pushkin , L. B. Serezhkina

Abstract

Voronoi–Dirichlet (VD) polyhedra have been used to make a crystal-chemical analysis of compounds containing in their crystal structure coordination polyhedra AnSen (An = Th, U, Np, Pu, Am, or Cm). It was found that atoms An(II), An(III), An(IV), and An(V) occur in selenides. These atoms coordinate from 6 to 10 selenium atoms in the form of Se2– or Se. It was shown that the VD polyhedra make it possible to determine the valence state of An atoms in structures of crystalline substances and reveal errors in the crystal-structural information. A dependence of the multiplicity of Se–Se bonds on their length in 0D, 1D, and 2D groups composed of only selenium atoms was determined.



中文翻译:

晶体结构中的AnSe n(An = Th,U,Np,Pu,Am或Cm)配位多面体

摘要

Voronoi–Dirichlet(VD)多面体已用于对晶体结构中包含多面体AnSe n(An = Th,U,Np,Pu,Am或Cm)配位的化合物进行晶体化学分析。发现在硒化物中存在原子An(II),An(III),An(IV)和An(V)。这些原子以Se 2–或Se 的形式配位6至10个硒原子。结果表明,VD多面体可以确定晶体结构中An原子的价态,并揭示晶体结构信息中的错误。确定了仅由硒原子构成的0D,1D和2D基团中Se-Se键的多样性对它们长度的依赖性。

更新日期:2020-09-07
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