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High-Pressure Syntheses of Novel Binary Nitrogen Compounds of Main Group Elements

Kroke, Edwin (2002):
High-Pressure Syntheses of Novel Binary Nitrogen Compounds of Main Group Elements.
In: Angewandte Chemie International Edition, 41 (1), pp. 77-82. Wiley-VCH Verlag GmbH, Weinheim, ISSN 14337851,
DOI: 10.1002/1521-3773(20020104)41:1<77::AID-ANIE77>3.0.CO;2-U,
[Article]

Abstract

The application of high‐pressure methods in the search for novel materials usually requires additional effort compared to syntheses at ambient pressure. Depending on the desired p/T conditions different methods may be used. Special techniques and experimental apparatus such as shock waves, diamond anvil cells, and multianvil presses, which have been applied mainly by earth scientists and physicists in the past, are increasingly being applied by synthetic chemists and material scientists. A series of fascinating discoveries have been made recently as is demonstrated by three examples of binary nitrogen compounds: 1) Diazenides, compounds with N22− ions, were obtained as single‐phase products and structurally characterized for the first time. 2) At 11 GPa and 1800 K a phosphorus(V) nitride was prepared, which contains tetragonal PN5 pyramids as a novel structural motif. 3) Macroscopic amounts of spinel silicon nitride were synthesized by shock‐wave techniques, which allows the comprehensive characterization and possibly the implementation of this new hard material.

Item Type: Article
Erschienen: 2002
Creators: Kroke, Edwin
Title: High-Pressure Syntheses of Novel Binary Nitrogen Compounds of Main Group Elements
Language: English
Abstract:

The application of high‐pressure methods in the search for novel materials usually requires additional effort compared to syntheses at ambient pressure. Depending on the desired p/T conditions different methods may be used. Special techniques and experimental apparatus such as shock waves, diamond anvil cells, and multianvil presses, which have been applied mainly by earth scientists and physicists in the past, are increasingly being applied by synthetic chemists and material scientists. A series of fascinating discoveries have been made recently as is demonstrated by three examples of binary nitrogen compounds: 1) Diazenides, compounds with N22− ions, were obtained as single‐phase products and structurally characterized for the first time. 2) At 11 GPa and 1800 K a phosphorus(V) nitride was prepared, which contains tetragonal PN5 pyramids as a novel structural motif. 3) Macroscopic amounts of spinel silicon nitride were synthesized by shock‐wave techniques, which allows the comprehensive characterization and possibly the implementation of this new hard material.

Journal or Publication Title: Angewandte Chemie International Edition
Journal volume: 41
Number: 1
Publisher: Wiley-VCH Verlag GmbH, Weinheim
Uncontrolled Keywords: pressure chemistry, main group elements, nitrides, nitrogen, phase transitions
Divisions: 11 Department of Materials and Earth Sciences
11 Department of Materials and Earth Sciences > Material Science
11 Department of Materials and Earth Sciences > Material Science > Dispersive Solids
Date Deposited: 19 Dec 2018 06:58
DOI: 10.1002/1521-3773(20020104)41:1<77::AID-ANIE77>3.0.CO;2-U
Official URL: https://doi.org/10.1002/1521-3773(20020104)41:1<77::AID-ANIE...
Funders: Financial support by the Alexander von Humboldt Stiftung (Feodor Lynen scholarship), the Deutsche Forschungsgemeinschaft (DFG, Bonn), and the Fonds der Chemischen Industrie (FCI, Frankfurt) is gratefully acknowledged.
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