Affiliation:
1. Institut für Anorganische Chemie Georg-August-Universität Tammannstraße 4 37077 Göttingen Germany
2. Institut für Chemie Humboldt-Universität zu Berlin Brook-Taylor-Straße 2 12489 Berlin Germany
3. Institut für Anorganische und Analytische Chemie Justus-Liebig-Universität Gießen Heinrich-Buff-Ring 14 35392 Gießen Germany
Abstract
AbstractSynthesis and characterization of [OsH(PNP)(bipy)]+ (PNP=N(CHCHPtBu2)2) are reported, as the second osmium(III) hydrido complex next to [OsH(en)2(py)]2+. While the osmium(II) precursor, [OsH(PNP)(bipy)], exhibits two reversible oxidations in the cyclic voltammogram, the product from 2‐electron oxidation could not be isolated due to rapid decay. Thermochemical examinations attribute the stability of the osmium(III) hydride to both thermodynamic and kinetic reasons. In contrast, the high estimated acidity of [OsH(PNP)(bipy)]2+ presumably leads to rapid decay.
Funder
Deutsche Forschungsgemeinschaft
Fonds der Chemischen Industrie