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The crystal chemistry of uranium carboxylates

机译:羧酸铀盐的晶体化学

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摘要

The field of uranium carboxylates has been studied for several decades and an important library of coordination complexes and network solids is now well defined. It mainly concerns the reactivity of hexavalent uranium (uranyl) with the different types of carboxylic acids containing monodentate or polydentate functions, aliphatic or aromatic carbon backbone, or hetero-systems offering other functionalities (N-donor, S-donor, phosphonates,...). A rich variety of molecular complexes or extended multi-dimensional networks (1D, 2D, 3D) has been identified and depends mainly on the equatorial connectivity of the uranyl cation (UO_2~(2+)) in different coordination numbers (tetragonal, pentagonal or hexagonal bipyramid). The yl oxo groups remain relatively inert to condensation process (except rare case of cation-cation interaction). For lower oxidation state of uranium (+3, +4, +5), the knowledge is at the infancy stage since very few contributions are available in literature. Nevertheless, recent contributions have shown the possibilities of the reactivity of tetravalent uranium in relatively stable architectures, either at the molecular level, with high nuclearities (up to U_(38)), or engaged in three-dimensional frameworks. The scope of this review is a comprehensive presentation of the crystal structures resulting from the different types of complexation of uranium with carboxylic acid molecules (excepting oxalate ligand) and their classification as a function of the nuclearity of identified building units.
机译:羧酸铀的研究领域已经进行了数十年的研究,现在已经很好地定义了配位化合物和网络固体的重要库。它主要涉及六价铀(铀酰)与不同类型的含单齿或多齿官能团,脂肪族或芳香族碳骨架或提供其他官能团的杂体系(N-给体,S-给体,膦酸酯)的反应性。 )。已经确定了各种各样的分子复合物或扩展的多维网络(1D,2D,3D),并且主要取决于不同配位数(四边形,五边形或四角形)上的铀酰阳离子(UO_2〜(2+))的赤道连通性。六角形双锥)。羰基氧基对缩合过程保持相对惰性(除了极少数情况下的阳离子-阳离子相互作用)。对于铀的较低氧化态(+ 3,+ 4,+ 5),知识尚处于起步阶段,因为文献中的贡献很少。尽管如此,最近的研究表明四价铀在相对稳定的结构中具有反应性的可能性,无论是在分子水平上,具有高核数(高达U_(38)),还是在三维结构中。这篇综述的范围全面地介绍了铀与羧酸分子(草酸配体除外)络合的不同类型所产生的晶体结构,以及它们根据确定的建筑单元的核数进行分类的过程。

著录项

  • 来源
    《Coordination chemistry reviews》 |2014年第5期|69-109|共41页
  • 作者单位

    Contribution from Unite de Catalyse et Chimie du Solide (UCCS) - UMR CNRS 8181, Universite de Lille Nord de France, USTL-ENSCL, Bat C7, BP 90108, 59652 Villeneuve d'Ascq, France;

    Contribution from Unite de Catalyse et Chimie du Solide (UCCS) - UMR CNRS 8181, Universite de Lille Nord de France, USTL-ENSCL, Bat C7, BP 90108, 59652 Villeneuve d'Ascq, France;

    Contribution from Unite de Catalyse et Chimie du Solide (UCCS) - UMR CNRS 8181, Universite de Lille Nord de France, USTL-ENSCL, Bat C7, BP 90108, 59652 Villeneuve d'Ascq, France;

    Contribution from Unite de Catalyse et Chimie du Solide (UCCS) - UMR CNRS 8181, Universite de Lille Nord de France, USTL-ENSCL, Bat C7, BP 90108, 59652 Villeneuve d'Ascq, France;

  • 收录信息 美国《科学引文索引》(SCI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Uranyl; Uranium (Ⅳ); Uranium (Ⅲ); Multidentate carboxylic acid; Solid-state crystal structure; Classification;

    机译:铀酰;铀(Ⅳ);铀(Ⅲ);多齿羧酸;固态晶体结构;分类;

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