نتایج جستجو برای: Comproportionation

تعداد نتایج: 60  

Journal: :Chemical communications 2015
Xiao Xiao Minghao Feng Xuefeng Jiang

A sulfur redox process has been developed between sulfinate and thiosulfate, which efficiently affords diverse unsymmetrical disulfides and provides a new method to modify pharmaceuticals and natural products without requiring an extra oxidant or reductant. Gram-scale investigation further demonstrates the practicality and application potential of this process. Isolated key intermediates and a ...

Journal: :Dalton transactions 2007
Yuya Tanaka Takehiro Ozawa Akiko Inagaki Munetaka Akita

Redox active polyiron complexes with higher dimensional spacers, the tetrairon complex with the two-dimensional tetra(ethynylphenyl)ethene spacer, (C=C)[p-C(6)H(4)-C triple bond C-FeCp*(dppe)](4), and the diiron complex with the three-dimensional spacer (pseudo-m-[2,2]paracyclophane)[C triple bond C-FeCp*(dppe)](2), are prepared, and their performance as molecular wires is evaluated on the basi...

Journal: :Dalton transactions 2016
Theresa O Chimamkpam Rodolphe Clérac Dmitri Mitcov Brendan Twamley Munuswamy Venkatesan Wolfgang Schmitt

Comproportionation reactions between MnCl2 and KMnO4 in the presence of arsonate or phosphonate ligands promote the cation-assisted assembly of high-nuclearity, wheel-shaped or toroidal {Mn8} () and {Mn24} () complexes; the closely corresponding reaction systems provide insights into the complexation behaviour of homologous phosphonate/arsonate ligand species.

2014
Simon Steinberg Gerd Meyer

Comproportionation reactions of yttrium triiodide, yttrium and nickel led to the formation of the compound [NiY6]I10, which is isostructural with the prototypical [RuY6]I10. In particular, [NiY6]I10 is composed of isolated nickel centered yttrium octa-hedra (site symmetry -1) that are further surrounded by iodide ligands to construct a three-dimensional cluster complex framework. Although this ...

Journal: :Dalton transactions 2011
Floriane Malvolti Cedric Rouxel Olivier Mongin Philippe Hapiot Loic Toupet Mireille Blanchard-Desce Frédéric Paul

We report in this communication the study of the intramolecular electron transfer through a 2,7-diethynylfluorenyl spacer in the Fe(II)/Fe(III) mixed-valent (MV) complex [(η(2)-dppe)(η(5)-C(5)Me(5))FeC≡C(2,7-C(21)H(24))C≡CFe(η(5)-C(5)Me(5))(η(2)-dppe)][PF(6)] (1[PF(6)]). The complex is generated in situ by comproportionation from its homovalent dinuclear Fe(II) and Fe(III) parents (1 and 1[PF(6...

2011
Konrad Kowalski

We report on the synthesis of complexes hav ing two equiva lent redox active 2,5-dimethylazafe rrocenyl entities connected by heteroaryl (heteroaryl = thiophenyl, bithiophenyl and pyridyl) bridges. The new compounds have been investigated by various electrochemical techniques including cyclic voltammetry (CV), differential pulse voltammetry (DPV) and square wave voltammetry (SW) and were found ...

Journal: :Inorganic chemistry 2016
Andreas Hermann Mariana Derzsi Wojciech Grochala Roald Hoffmann

The structural, electronic, and dynamic properties of hypothetical gold(II) oxide (AuO) are studied theoretically, at atmospheric and elevated pressures, with the use of hybrid density functional theory. At p = 1 atm, hypothetical AuO (metastable with respect to the elements) is predicted to crystallize in a new structure type, unique among the late-transition-metal monoxides, with disproportio...

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