A High-Valent Ruthenium(VI) Dioxo Cation of 1,4,8,11-Tetramethyl-1,4,8,11-tetraazacyclotetradecane

Chi Ming Che; Kwok Yin Wong; Chung Kwong Poon

doi:10.1021/ic00206a019

A High-Valent Ruthenium(VI) Dioxo Cation of 1,4,8,11-Tetramethyl-1,4,8,11-tetraazacyclotetradecane

Chi Ming Che, Kwok Yin Wong, Chung Kwong Poon

Research output: Journal article publication › Journal article › Academic research › peer-review

72 Citations (Scopus)

Abstract

A high-valent trans-[Ru(TMC)O2]2+ (TMC = 1,4,8,1 1-tetramethyl-1,4,8,11-tetraazacyclotetradecane) cation has been produced from trans-[Ru(TMC)Cl2]+ through H2O2 oxidation. This novel diamagnetic ruthenium(VI) dioxo species has been subjected to detailed spectroscopic and electrochemical characterization. The UV-vis absorption spectra of trans-[Ru(TMC)O2]2+ and the previously reported trans-[Ru(NH3)4O2]2+ exhibit a weak vibronic structured absorption band at ~390 nm. Cyclic voltammetric and controlled-potential coulometric experiments showed that the reduction of trans-[Ru(TMC)O2]2+ to trans-[Ru(TMC)O-(H2O)]2+ proceeded by a single-step two-electron-transfer process.

Original language	English
Pages (from-to)	1797-1800
Number of pages	4
Journal	Inorganic Chemistry
Volume	24
Issue number	12
DOIs	https://doi.org/10.1021/ic00206a019
Publication status	Published - 1 Jun 1985
Externally published	Yes

ASJC Scopus subject areas

Physical and Theoretical Chemistry
Inorganic Chemistry

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10.1021/ic00206a019

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title = "A High-Valent Ruthenium(VI) Dioxo Cation of 1,4,8,11-Tetramethyl-1,4,8,11-tetraazacyclotetradecane",

abstract = "A high-valent trans-[Ru(TMC)O2]2+ (TMC = 1,4,8,1 1-tetramethyl-1,4,8,11-tetraazacyclotetradecane) cation has been produced from trans-[Ru(TMC)Cl2]+ through H2O2 oxidation. This novel diamagnetic ruthenium(VI) dioxo species has been subjected to detailed spectroscopic and electrochemical characterization. The UV-vis absorption spectra of trans-[Ru(TMC)O2]2+ and the previously reported trans-[Ru(NH3)4O2]2+ exhibit a weak vibronic structured absorption band at ~390 nm. Cyclic voltammetric and controlled-potential coulometric experiments showed that the reduction of trans-[Ru(TMC)O2]2+ to trans-[Ru(TMC)O-(H2O)]2+ proceeded by a single-step two-electron-transfer process.",

author = "Che, {Chi Ming} and Wong, {Kwok Yin} and Poon, {Chung Kwong}",

year = "1985",

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AU - Che, Chi Ming

AU - Wong, Kwok Yin

AU - Poon, Chung Kwong

PY - 1985/6/1

Y1 - 1985/6/1

N2 - A high-valent trans-[Ru(TMC)O2]2+ (TMC = 1,4,8,1 1-tetramethyl-1,4,8,11-tetraazacyclotetradecane) cation has been produced from trans-[Ru(TMC)Cl2]+ through H2O2 oxidation. This novel diamagnetic ruthenium(VI) dioxo species has been subjected to detailed spectroscopic and electrochemical characterization. The UV-vis absorption spectra of trans-[Ru(TMC)O2]2+ and the previously reported trans-[Ru(NH3)4O2]2+ exhibit a weak vibronic structured absorption band at ~390 nm. Cyclic voltammetric and controlled-potential coulometric experiments showed that the reduction of trans-[Ru(TMC)O2]2+ to trans-[Ru(TMC)O-(H2O)]2+ proceeded by a single-step two-electron-transfer process.

AB - A high-valent trans-[Ru(TMC)O2]2+ (TMC = 1,4,8,1 1-tetramethyl-1,4,8,11-tetraazacyclotetradecane) cation has been produced from trans-[Ru(TMC)Cl2]+ through H2O2 oxidation. This novel diamagnetic ruthenium(VI) dioxo species has been subjected to detailed spectroscopic and electrochemical characterization. The UV-vis absorption spectra of trans-[Ru(TMC)O2]2+ and the previously reported trans-[Ru(NH3)4O2]2+ exhibit a weak vibronic structured absorption band at ~390 nm. Cyclic voltammetric and controlled-potential coulometric experiments showed that the reduction of trans-[Ru(TMC)O2]2+ to trans-[Ru(TMC)O-(H2O)]2+ proceeded by a single-step two-electron-transfer process.

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A High-Valent Ruthenium(VI) Dioxo Cation of 1,4,8,11-Tetramethyl-1,4,8,11-tetraazacyclotetradecane

Abstract

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