A Terminal Osmium(IV) Nitride: Ammonia Formation and Ambiphilic Reactivity
2016 | journal article. A publication with affiliation to the University of Göttingen.
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A Terminal Osmium(IV) Nitride: Ammonia Formation and Ambiphilic Reactivity
Schendzielorz, F. S.; Finger, M.; Volkmann, C.; Wuertele, C. & Schneider, S. (2016)
Angewandte Chemie International Edition, 55(38) pp. 11417-11420. DOI: https://doi.org/10.1002/anie.201604917
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- Authors
- Schendzielorz, Florian S.; Finger, Markus; Volkmann, Christian; Wuertele, Christian; Schneider, Sven
- Abstract
- Low-valent osmium nitrides are discussed as intermediates in nitrogen fixation schemes. However, rational synthetic routes that lead to isolable examples are currently unknown. Here, the synthesis of the square-planar osmium(IV) nitride [OsN(PNP)] (PNP=N(CH2CH2P(tBu)(2))(2)) is reported upon reversible deprotonation of osmium(VI) hydride [Os(N)H(PNP)](+). The Os-IV complex shows ambiphilic nitride reactivity with SiMe3Br and PMe3, respectively. Importantly, the hydrogenolysis with H-2 gives ammonia and the polyhydride complex [OsH4(HPNP)] in 80% yield. Hence, our results directly demonstrate the role of low-valent osmium nitrides and of heterolytic H-2 activation for ammonia synthesis with H-2 under basic conditions.
- Issue Date
- 2016
- Status
- published
- Publisher
- Wiley-v C H Verlag Gmbh
- Journal
- Angewandte Chemie International Edition
- ISSN
- 1521-3773; 1433-7851
- Sponsor
- European Research Council (ERC) [646747]