期刊
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
卷 57, 期 29, 页码 9048-9053出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201805152
关键词
high-energy-density materials; high-pressure chemistry; nitrides; polymeric nitrogen; X-ray diffraction
资金
- German Research Foundation (Deutsche Forschungsgemeinschaft, DFG) [DU 954-8/1, DU 954-11/1]
- Federal Ministry of Education and Research, Germany (BMBF) [5K16WC1]
- DFG [FOR2125, FOR 2440]
- Ministry of Education and Science of the Russian Federation [14.Y26.31.0005, K2-2017-080]
- Swedish Research Council (VR) [2015-04391]
- Swedish Government Strategic Research Area in Materials Science on Functional Materials at Linkoping University (Faculty Grant SFO-Mat-LiU) [2009-00971]
- VINN Excellence Center Functional Nanoscale Materials (FunMat-2) Grant [2016-05156]
A nitrogen-rich compound, ReN(8)xN(2), was synthesized by a direct reaction between rhenium and nitrogen at high pressure and high temperature in a laser-heated diamond anvil cell. Single-crystal X-ray diffraction revealed that the crystal structure, which is based on the ReN8 framework, has rectangular-shaped channels that accommodate nitrogen molecules. Thus, despite a very high synthesis pressure, exceeding 100GPa, ReN(8)xN(2) is an inclusion compound. The amount of trapped nitrogen (x) depends on the synthesis conditions. The polydiazenediyl chains [-N=N-] that constitute the framework have not been previously observed in any compound. Abinitio calculations on ReN(8)xN(2) provide strong support for the experimental results and conclusions.
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