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Royal Society of Chemistry, Dalton Transactions, 10(42), p. 3597

DOI: 10.1039/c2dt32548a

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Mono- and dinuclear osmium N,N′-di- and tetraphenylbipyridyls and extended bipyridyls. Synthesis, structure and electrochemistry

Journal article published in 2013 by Miguel A. Esteruelas, Israel Fernández ORCID, Mar Gómez-Gallego, Mamen Martín-Ortíz, Pedro Molina, Montserrat Oliván ORCID, Francisco Otón, Miguel A. Sierra, Marta Valencia
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This paper is available in a repository.

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Abstract

The efficient synthesis of mono- and dinuclear Os(iv) bipyridyl complexes is reported. These compounds show a two-step oxidation process leading to notable structural changes, which are reflected in their emission properties. During the second oxidation process a tetracation with a hydride-dihydrogen structure (instead of a trihydride) is formed. This results in a significant bathochromic shift of the emission band, accompanied by a moderate increase in intensity.