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High-Pressure Synthesis of a Nitrogen-Rich Inclusion Compound ReN8·xN2 with Conjugated Polymeric Nitrogen Chains
Univ Bayreuth, Germany.
Deutsch Elektronen Synchrotron DESY, Germany.
Univ Bayreuth, Germany.
Univ Bayreuth, Germany.
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2018 (English)In: Angewandte Chemie International Edition, ISSN 1433-7851, E-ISSN 1521-3773, Vol. 57, no 29, p. 9048-9053Article in journal (Refereed) Published
Abstract [en]

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.

Place, publisher, year, edition, pages
WILEY-V C H VERLAG GMBH , 2018. Vol. 57, no 29, p. 9048-9053
Keywords [en]
high-energy-density materials; high-pressure chemistry; nitrides; polymeric nitrogen; X-ray diffraction
National Category
Inorganic Chemistry
Identifiers
URN: urn:nbn:se:liu:diva-149844DOI: 10.1002/anie.201805152ISI: 000438195200045PubMedID: 29774981OAI: oai:DiVA.org:liu-149844DiVA, id: diva2:1236453
Note

Funding Agencies|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]

Available from: 2018-08-02 Created: 2018-08-02 Last updated: 2018-08-22

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Tidholm, JohanTasnadi, FerencAbrikosov, Igor A.

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