Abstract

Structure of two new molybdate complexes of Np(V) with composition of Cs₂[(NpO₂)₂(MoO₄)₂(H₂O)]·H₂O (I) and Cs₃[(NpO₂)(MoO₄)₂] (II) has been studied. In structure I, two independent dioxocations NpO₂⁺ are bound into pairs by the cation-cation interaction, one independent dioxocation being a ligand, and the other, a coordinating center. Two independent tetradentate-bridging molybdate ions bind pairs of dioxocations into the anionic skeleton. The coordination polyhedron of both Np atoms is the pentagonal bipyramid. Structure II has a chain-like structure with two independent bidentate-bridging molybdate ions binding dioxocations NpO₂⁺ into anionic chains and the Np(1) atom having a coordination environment in the form of a tetragonal bipyramid the equatorial plane of which is formed by the oxygen atoms of four MoO₄^2– anions.

中文翻译：

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Np（V）与外层Cs +阳离子的钼酸盐络合物

摘要

具有Cs ₂ [（NpO ₂）₂（MoO ₄）₂（H ₂ O）]·H ₂ O（I）和Cs ₃ [（NpO ₂）（MoO ）组成的Np（V）的两种新钼酸盐络合物的结构₄）₂ ]（II）已被研究。在结构I中，两个独立的二氧肟酸NpO ₂ ⁺通过阳离子-阳离子相互作用成对结合，一个独立的二氧杂环是配体，另一个独立的是配位中心。两个独立的四齿桥联钼酸盐离子将成对的二氧杂环丁酸酯键合到阴离子骨架中。两个Np原子的配位多面体为五边形双锥体。结构II具有类似链的结构，具有两个独立的二齿桥联钼酸根离子，将二氧杂环丁酸NpO ₂ ⁺结合到阴离子链中，Np（1）原子具有四方双锥体形式的配位环境，其赤道平面由四个MoO ₄ ^2–阴离子的氧原子。