Saccharified Uranyl Ions: Self‐Assembly of UO
<sub>2</sub>
<sup>2+</sup>
into Trinuclear Anionic Complexes by the Coordination of Glucosamine‐Derived Schiff Bases
作者:Gerrit Schaper、Marco Wenzel、Felix Hennersdorf、Leonard F. Lindoy、Jan J. Weigand
DOI:10.1002/chem.202100546
日期:2021.6.10
ene) glucosamine (H2L2) in a similar procedure with Cs+ gave the corresponding complex [Cs(18-crown-6)]2[(UO2)3(μ3-O)(L2)3 ([Cs(18-crown-6)]22). From X-ray investigations, the [(UO2)3O(Ln)3]2− anion (n=1, 2) in each complex is a discrete trinuclear uranyl species that coordinates to the alkali metal ion via three uranyl oxygen atoms. The coordination behavior of H2L1 and H2L2 towards UO22+ was investigated
UO 2 (OAc) 2 ⋅ 2H 2 O 与生物启发配体 2-水杨基葡萄糖胺 (H 2 L 1 ) 的反应导致形成阴离子三核铀酰络合物 [(UO 2 ) 3 ( μ 3 -O) ( L 1 ) 3 ] 2− ( 1 2− ),以良好的产率分离出其铯盐,[Cs] 2 1 。 [Cs] 2 1在 18-crown-6 存在下的重结晶导致形成 [M(18-crown-6)] 2 1型中性离子对,这对于碱金属离子 Rb +也得到了和K + (M=Cs、Rb、K)。相关配体 2-(2-羟基-1-亚萘基) 葡糖胺 (H 2 L 2 ) 以与 Cs +类似的过程产生相应的配合物 [Cs(18-crown-6)] 2 [(UO 2 ) 3 ( μ 3 -O)( L 2 ) 3 ([Cs(18-冠-6)] 2 2 )。根据 X 射线研究,每个配合物中的 [(UO 2 ) 3 O( L n ) 3 ] 2−阴离子