Synthesis and Characterisation of Molecular Polarised-Covalent Thorium-Rhenium and -Ruthenium Bonds

Ostrowski, Joseph P. A.; Wooles, Ashley J.; Liddle, Stephen T.

doi:10.3390/inorganics9050030

Cited by 8 publications

(8 citation statements)

References 70 publications

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“…Complex 47 with a Th-Re bond was also reported by Liddle group using an alkyl elimination strategy (Scheme 21), which represents the first structurally authenticated An-group 7 TMs bonding interactions. 48 In addition, the Zi and co-workers reported an example of Th-Cu heterobimetallic complex 48, which was synthesized by the reaction of thorium imido species with copper(I) halides (Scheme 21). 49 All the complexes contain only one An-TM bond for each actinide element and all of them have a +IV oxidation state.…”

Section: Supporting Ligandsmentioning

confidence: 99%

Recent advances in heterometallic clusters with f-block metal–metal bonds: synthesis, reactivity and applications

Fang

Zhu

2022

Chem. Soc. Rev.

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Section: Supporting Ligandsmentioning

confidence: 99%

Recent advances in heterometallic clusters with f-block metal–metal bonds: synthesis, reactivity and applications

Fang

Zhu

2022

Chem. Soc. Rev.

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“…The material microstructure can be detected via PLM testing, from which different crystalline structures can be observed [25,26].…”

Section: Crystalline Structure Characterisation and Analysismentioning

confidence: 99%

Breakdown Properties of Cables with Different Inorganic, Insulating Nanomaterials

2021

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The insulation performance of cable insulating materials can be optimised via matrix modification. Typically, low-density polyethylene (LDPE) is used as the matrix, and a certain proportion of nanoparticles are added to this matrix. To explore the effects of nanoparticles with different forms on the structural interface and crystal morphology of the material, nano-MMT and nano-ZnO were added to LDPE, and comparative experiments were carried out. Based on microscopic test results, material insulation performance changes before and after optimisation were observed. Then, simulation cable models with different insulating materials were developed. Based on the simulated electrical measurements, the thermal breakdown performance of the different insulating materials was tested. According to infrared stereo vision detection results, anomalous temperature points in the cables can be located accurately. Finally, based on macroscopic test results, we verified whether the inorganic, insulating nanomaterials meet the requirements for high-voltage transmission.

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“…Since the renaissance of nonaqueous actinide chemistry, the past decade has witnessed remarkable progress in construction of 5f-block metal–metal bonds − and metal–ligand multiple bonds. − Advances are largely due to the development and utilization of polydentate ligands, especially trianionic ligands featuring O , or N donor atoms. Trianionic ligands with tripodal topologies can provide tunable steric hindrance and conformation, with significant recent applications to actinides arising from the groups of Liddle, − Meyer, − and others. , The first such actinide complex, with uranium, employed tripodal aminotris(ethylamido) (tren) and was reported by Scott in 1996 (Figure , ligand A ) .…”

Section: Introductionmentioning

confidence: 99%

Tetravalent Uranium and Thorium Complexes: Elucidating Disparate Reactivities of An^IVCl₂ (An = U, Th) Supported by a Pyridine-Decorated Dianionic Ligand

Guo

Liu

et al. 2023

Inorg. Chem.

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Although synthesis, reactivity, and bonding of U(IV) and Th(IV) complexes have been extensively studied, direct comparison of fully analogous compounds is rare. Herein, we report corresponding complexes 1-U and 1-Th, in which U(IV) and Th(IV) are supported by the tetradentate pyridine-decorated dianionic ligand N2NN′ (1,1,1-trimethyl-N-(2-(((pyridin-2-ylmethyl)(2-((trimethylsilyl)amino)benzyl)amino)methyl)phenyl)silanamine). Although 1-U and 1-Th are structurally very similar, they display disparate reactivities with TMS3SiK (tris(trimethylsilyl)silylpotassium). The reaction of (N2NN′)UCl2 (1-U) and 1 equiv of TMS3SiK in THF unexpectedly formed [Cl(N2NN′)U]2O (2-U) featuring an unusual bent U–O–U moiety. In contrast, a salt elimination reaction between (N2NN′)ThCl2 (1-Th) and 1 equiv of TMS3SiK led to thorium complex 2-Th, in which the pyridyl group has undergone a 1,4-addition nucleophilic attack. Complex 2-Th serves as a synthon for preparing dimetallic bis-azide complex 3-Th by reaction with NaN3. The complexes were characterized by X-ray crystal diffraction, solution NMR, FT-IR, and elemental analysis. Computations of the formation mechanism of 2-U from 1-U suggest reduced U(III) as a key intermediate for promoting the cleavage of the C–O bonds of THF. The inaccessible nature of Th(III) as an intermediate oxidation state explains the very different reactivity of 1-Th versus 1-U. Given that reactants 1-U and 1-Th and products 2-U and 2-Th all comprise tetravalent actinides, this is an unusual case of very disparate reactivity despite no net change in the oxidation state. Complexes 2-U and 3-Th provide a basis for the synthesis of other dinuclear actinide complexes with novel reactivity and properties.

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Synthesis and Characterisation of Molecular Polarised-Covalent Thorium-Rhenium and -Ruthenium Bonds

Cited by 8 publications

References 70 publications

Recent advances in heterometallic clusters with f-block metal–metal bonds: synthesis, reactivity and applications

Recent advances in heterometallic clusters with f-block metal–metal bonds: synthesis, reactivity and applications

Breakdown Properties of Cables with Different Inorganic, Insulating Nanomaterials

Tetravalent Uranium and Thorium Complexes: Elucidating Disparate Reactivities of An^IVCl₂ (An = U, Th) Supported by a Pyridine-Decorated Dianionic Ligand

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Synthesis and Characterisation of Molecular Polarised-Covalent Thorium-Rhenium and -Ruthenium Bonds

Cited by 8 publications

References 70 publications

Recent advances in heterometallic clusters with f-block metal–metal bonds: synthesis, reactivity and applications

Recent advances in heterometallic clusters with f-block metal–metal bonds: synthesis, reactivity and applications

Breakdown Properties of Cables with Different Inorganic, Insulating Nanomaterials

Tetravalent Uranium and Thorium Complexes: Elucidating Disparate Reactivities of AnIVCl2 (An = U, Th) Supported by a Pyridine-Decorated Dianionic Ligand

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Tetravalent Uranium and Thorium Complexes: Elucidating Disparate Reactivities of An^IVCl₂ (An = U, Th) Supported by a Pyridine-Decorated Dianionic Ligand