Planar Tetranuclear Uranium Hydride Cluster Supported by ansa-Bis(cyclopentadienyl) Ligands

被引：2

作者：

Li, Kai ^{[1
]}

del Rosal, Iker ^{[2
,3
]}

Zhao, Yue ^{[1
]}

Maron, Laurent ^{[2
,3
]}

Zhu, Congqing ^{[1
]}

机构：

[1] Nanjing Univ, Sch Chem & Chem Engn, State Key Lab Coordinat Chem, Jiangsu Key Lab Adv Organ Mat, Nanjing 210023, Peoples R China

[2] Univ Paul Sabatier, LPCNO, CNRS, 135 Ave Rangueil, F-31077 Toulouse, France

[3] Univ Paul Sabatier, INSA, 135 Ave Rangueil, F-31077 Toulouse, France

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2024年 / 63卷 / 29期

基金：

国家重点研发计划; 中国国家自然科学基金;

关键词：

uranium; metal hydride cluster; planar geometry; U & sdot; & sdot; U interaction; DFT calculations; WATER CLUSTERS; BASIS-SETS; SPECTRA; BENZENE-(H2O)(N); SPECTROSCOPY; SIMULATIONS; PREFERENCES; MOLECULE; SOLVENT; RI-MP2;

D O I：

10.1002/anie.202405494

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Polynuclear metal hydride clusters play important roles in various catalytic processes, with most of the reported polynuclear metal hydride clusters adopting a polyhedral three-dimensional structure. Herein, we report the first example of a planar tetranuclear uranium hydride cluster [(CpCMe2CMe2Cp)U](4)(mu(2)-H)(4)(mu(3)-H)(4) (U4H8). It was synthesized by reacting an ansa-bis(cyclopentadienyl) ligand-supported uranium chloride precursor [(CpCMe2CMe2Cp)U](3)(mu(2)-Cl)(3)(mu(3)-Cl)(2) with NaHBEt3. The presence of hydrides in U4H8 was confirmed by NMR spectroscopy and its reactivity with phenol and carbon tetrachloride. DFT calculations also facilitated the determination of the hydrides' positions in U4H8, featuring four bridging mu(2)-H ligands and four face-capping mu(3)-H ligands, with the four U centers arranged in a rhombic geometry. The U4H8 represents not only the first example of planar polynuclear actinide metal hydride cluster but also the uranium hydride cluster with the highest nuclearity reported to date.

引用

页数：6