New cyanometallate cluster complexes of the composition Na8[{Re4As1.5(AsO)2.5}(CN) 12]··20.5H2O (1) and Cs7K[{Re4As2(AsO)2}(CN)12]·12H2O (2) were synthesized by high-temperature reactions of ReI3 with As and MCN (M is Na or Cs) followed by the recrystallization of the soluble products from water. The crystal structures of the synthesized compounds were studied by X-ray diffraction. An increase in the ionic radius of the cation leads to an increase in the symmetry of the crystal lattice from monoclinic to tetragonal.

中文翻译：

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阳离子对四面体砷化铼氰基团簇结构的影响

组成为 Na8[{Re4As1.5(AsO)2.5}(CN) 12]··20.5H2O (1) 和 Cs7K[{Re4As2(AsO)2}(CN)12]·12H2O (2) 的新型氰基金属化物簇配合物通过 ReI3 与 As 和 MCN（M 是 Na 或 Cs）的高温反应合成，然后从水中重结晶可溶性产物。通过X射线衍射研究了合成化合物的晶体结构。阳离子离子半径的增加导致晶格从单斜晶格到四方晶格的对称性增加。