We thank Thomas Miller (temperature-dependent in situ powder diffractometry) and Franziska Hummel (low-temperature powder diffractometry). The authors gratefully acknowledge financial support from the Fonds der Chemischen Industrie (FCI) and the Deutsche Forschungsgemeinschaft (DFG), project SCHN 377/13-2.
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Communication
High-Pressure Synthesis and Characterization of the Alkali Diazenide Li2N2†
Article first published online: 13 JAN 2012
DOI: 10.1002/anie.201108252
Copyright © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Additional Information
How to Cite
Schneider, S. B., Frankovsky, R. and Schnick, W. (2012), High-Pressure Synthesis and Characterization of the Alkali Diazenide Li2N2. Angew. Chem. Int. Ed., 51: 1873–1875. doi: 10.1002/anie.201108252
- †
Publication History
- Issue published online: 14 FEB 2012
- Article first published online: 13 JAN 2012
- Manuscript Received: 23 NOV 2011
Funded by
- Fonds der Chemischen Industrie
- Deutsche Forschungsgemeinschaft (DFG). Grant Number: SCHN 377/13-2
Keywords:
- electronic structure;
- high-pressure chemistry;
- high-temperature chemistry;
- lithium;
- nitrides
Diazenide surprise: The synthesis of an alkali diazenide, Li2N2, is presented. Lithium diazenide adopts an unprecedented structure type for compounds with A2B2 composition (see picture). Spectroscopic analysis shows a significant feature at 1328 cm−1 which is assigned to the stretching vibration of the [N2]2− ion. Electronic structure calculations underline the metallic character and confirm the 50 % occupation of the antibonding π states in [N2]2−.