Anodic oxidation of uranocene. Evidence for new organouranium cations in solution

Butcher, Jared A.; Chambers, James Q.; Pagni, Richard M.

doi:10.1021/ja00471a080

Cited by 23 publications

(14 citation statements)

References 2 publications

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“…The value of the oxidation potential is similar to other uranium(IV) complexes, but only moderately close to uranocene, at 0.06 V versus SCE (0.44 V vs. ferrocene). 41,51,52 Unfortunately, reactions to oxidize 1 to uranium(V) under a variety of conditions (see ESI †) did not yet yield any isolable species.…”

Section: Resultsmentioning

confidence: 99%

Actinide tetra-N-heterocyclic carbene ‘sandwiches’

et al. 2021

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Section: Resultsmentioning

confidence: 99%

Actinide tetra-N-heterocyclic carbene ‘sandwiches’

et al. 2021

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“…In addition, the character of the frontier orbitals of the ansa actinocenes 4 a and 4 b was probed by cyclic voltammetry measurements in THF solution (see the Supporting Information, Figures S6 and S7). Besides two irreversible oxidation processes starting at around −0.30 V vs. Fc/Fc+, the uranium complex exhibits an irreversible reduction at E pc =−2.57 V vs. Fc/Fc + , corresponding to reduction to U III 14. In contrast, the thorium derivative 4 a does not show any oxidation events in the same potential window, but instead shows two consecutive irreversible reduction waves at E pc =−2.54 V and −3.00 V vs. Fc/Fc + .…”

Section: Methodsmentioning

confidence: 99%

“…Besides two irreversible oxidation processes starting at around À0.30 Vv s. Fc/Fc + ,t he uranium complex exhibits an irreversible reduction at E pc = À2.57 Vv s. Fc/Fc + ,c orresponding to reduction to U III . [14] In contrast, the thorium derivative 4a does not show any oxidation eventsi n the same potential window,b ut instead shows two consecutive irreversible reduction waves at E pc = À2.54 Va nd À3.00 V vs. Fc/Fc + .I ti si nteresting to note that the electrochemical reductionp rocesses leading to the dianion of 4a,aspeciest hat would be isoelectronic with 4b,a re not reversible and thus likely involve structural reorganization of the originals andwich complex.…”

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confidence: 99%

f‐Block Ansa Complexes in the Solid State: [3]Thoro‐ and [3]Uranocenophanes

Braunschweig

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Dück

et al. 2015

Chemistry A European J

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The preparation of [3]thoro- and [3]uranocenophanes, the first structurally authenticated ansa-bridged complexes of actinocenes, is reported. Following a flytrap route, 1,2-bis(cyclooctatetraenyldimethylsilyl)methane was synthesized, reduced to its tetraanion, and subsequently converted into bridged uranocene and thorocene complexes by salt metathesis with the corresponding actinide tetrachlorides. In addition, their electronic structures have been investigated by experimental (UV/Vis spectroscopy, cyclic voltammetry) and theoretical (DFT) methods.

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“…It is available from Chemotronics International, Inc., Ann Arbor, Mich. T h e only previous reports of its use as an electrode are that of Norvell and Mamantov (17) who used a thin slice of RVC as an optically transparent electrode, and that of Butcher, Chambers, and Pagni who used a stationary RVC anode for the coulometric electrolysis of uranocene in THF (18). Tentorio and Casolo-Ginelli have reported a study of t h e mass transfer characteristics of a reticulated copper electrode made by electroless deposition of copper on polyurethane foams (19).…”

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confidence: 99%