Organic Functionalization of Uranyl Peroxide Clusters to Impact Solubility
作者:Mengyu Xu、Peter Eckard、Peter C. Burns
DOI:10.1021/acs.inorgchem.0c01080
日期:2020.7.20
Benzene-1,2-diphosphonic acid (Ppb) was introduced into the uranyl peroxide cluster system, resulting in three Ppb-functionalized uranyl peroxide clusters, (UO2)20(O2)20(C6H4P2O6)1040– (U20Ppb10), (UO2)26(O2)33(C6H4P2O6)638– (U26Ppb6), and (UO2)20(O2)24(C6H4P2O6)632– (U20Ppb6). Dissolution experiments were performed for the potassium salts of U20Ppb10 and U26Ppb6, which revealed the capacity of U20Ppb10 to
将苯甲基1,2-二膦酸(Ppb)引入到过氧化铀酰簇系统中,得到三个Ppb功能化的过氧化铀酰簇,(UO 2)20(O 2)20(C 6 H 4 P 2 O 6)10 40–(U 20 Ppb 10),(UO 2)26(O 2)33(C 6 H 4 P 2 O 6)6 38–(U 26 Ppb 6)和(UO2)20(O 2)24(C 6 H 4 P 2 O 6)6 32–(U 20 Ppb 6)。对U 20 Ppb 10和U 26 Ppb 6的钾盐进行了溶解实验,揭示了U 20 Ppb 10溶于有机溶剂二甲基亚砜(DMSO)的能力。与U 20 Ppb 10不同,U 26 Ppb 6的K盐可能不溶于DMSO,但更溶于水,这可能是由于Ppb配体的结构比例较低。在这项工作中,形成为钾盐的U 20 Ppb 10和U 20 Ppb 6均采用先前报道的U 20的富勒烯拓扑结构。U 20包含20个过氧化铀酰
Supramolecular Assembly of Geometrically Unstable Hybrid Organic–Inorganic Uranyl Peroxide Cage Clusters and Their Transformations
作者:Mengyu Xu、Hrafn Traustason、Fabrice Dal Bo、Sarah Hickam、Saehwa Chong、Lei Zhang、Allen G. Oliver、Peter C. Burns
DOI:10.1021/jacs.9b05599
日期:2019.8.14
⋅65 H2O that consists of a unique "open oyster" shaped structure (U19) with intramolecular H-bonds. In the solid state, K-π and π-π interactions, as well as K-O bonds enable the formation of a supramolecular network between U19 clusters. U19 adopts an incomplete fullerene topology and was utilized as a precursor from which the geometrically favored U24 structure was produced. A potassium-encapsulated
作者:Juan Diwu、Shuao Wang、Thomas E. Albrecht-Schmitt
DOI:10.1021/ic2023242
日期:2012.4.2
described and compared with other clusters of containing An(IV) or Ce(IV). All of the clusters share the common formula M6(H2O)m[C6H3(PO3)(PO3H)]6(NO3)n(6–n) (M = Ce, Th, U, Np, Pu). The metal centers are normally nine-coordinate, with five oxygen atoms from the ligand and an additional four either occupied by NO3– or H2O. It was found that the Ce, U, and Pu clusters favor both C3i and Ci point groups
Self‐Assembly of Hexanuclear Clusters of 4f and 5f Elements with Cation Specificity
作者:Juan Diwu、Justin J. Good、Victoria H. DiStefano、Thomas E. Albrecht‐Schmitt
DOI:10.1002/ejic.201100066
日期:2011.3
Six hexanuclear clusters of 4f and 5f elements were synthesized by room-temperature slow concentration experiments. Cerium(IV), thorium(IV), and plutonium(IV) each form two different hexanuclear clusters, among which the cerium and plutonium clusters are isotypic, whereas the thorium clusters show more diversity. The change in ionic radii of approximately 0.08 A between these different metal ions tunes
通过室温缓慢浓缩实验合成了 6 个 4f 和 5f 元素的六核簇。铈(IV)、钍(IV)和钚(IV)各自形成两个不同的六核簇,其中铈和钚簇是同型的,而钍簇表现出更多的多样性。这些不同金属离子之间大约 0.08 A 的离子半径变化会调整腔尺寸,以便 NHsub 4}sup +} (1.48 A) 具有正确的尺寸来组装铈和钚簇,而 Cssup + } (1.69 A) 是组装钍簇所必需的。如果在反应中不使用这些阳离子,则只能获得无定形材料。
Cerium(IV), Neptunium(IV), and Plutonium(IV) 1,2-Phenylenediphosphonates: Correlations and Differences between Early Transuranium Elements and Their Proposed Surrogates
作者:Juan Diwu、Shuao Wang、Zuolei Liao、Peter C. Burns、Thomas E. Albrecht-Schmitt
DOI:10.1021/ic1015912
日期:2010.11.1
reveal that although all these three compounds all crystallize in the triclinic space group P1̅, only PuPhP2 and CePhP2 are isotypic, whereas NpPhP2 adopts a distinct structure. In the cerium and plutonium compounds edge-sharing dimers of MO8 polyhedra are bridged by the diphosphonate ligand to create one-dimensional chains. NpPhP2 also forms chains. However, the NpO8 units are monomeric. The protonation
在1,2-苯二膦酸(PhP2)存在下,将Np(VI)原位水热还原为Np(IV)并将Pu(VI)还原为Pu(IV )导致Np [C 6 H 4( PO 3 H)2 ] 2 ·2H 2 O(NpPhP2)和Pu [C 6 H 4(PO 3 H)(PO 3 H 2)] [C 6 H 4(PO 3 H)(PO 3)]·2H 2 O(PuPhP2), 分别。已经研究了与Ce(IV)相似的反应,从而分离了Ce(IV)苯二膦酸酯Ce [C 6 H 4(PO 3 H)(PO 3 H 2)] [C 6 H 4(PO 3 H)( PO 3)]·2H 2 O(CePhP2)。单晶衍射研究揭示,尽管所有这三种化合物在三斜晶系空间群所有结晶P 1中,仅PuPhP2和CePhP2是同型的,而NpPhP2采用独特的结构。在铈和p化合物中,MO 8多面体的边缘共享二聚体被二膦酸酯配体桥接以形成一维链。NpPhP2也形成链。但是,NpO