Unknown

Dataset Information

0

Synthesis of magnesium-nitrogen salts of polynitrogen anions.


ABSTRACT: The synthesis of polynitrogen compounds is of fundamental importance due to their potential as environmentally-friendly high energy density materials. Attesting to the intrinsic difficulties related to their formation, only three polynitrogen ions, bulk stabilized as salts, are known. Here, magnesium and molecular nitrogen are compressed to about 50?GPa and laser-heated, producing two chemically simple salts of polynitrogen anions, MgN4 and Mg2N4. Single-crystal X-ray diffraction reveals infinite anionic polythiazyl-like 1D N-N chains in the crystal structure of MgN4 and cis-tetranitrogen N44- units in the two isosymmetric polymorphs of Mg2N4. The cis-tetranitrogen units are found to be recoverable at atmospheric pressure. Our results respond to the quest for polynitrogen entities stable at ambient conditions, reveal the potential of employing high pressures in their synthesis and enrich the nitrogen chemistry through the discovery of other nitrogen species, which provides further possibilities to design improved polynitrogen arrangements.

SUBMITTER: Laniel D 

PROVIDER: S-EPMC6778147 | biostudies-literature | 2019 Oct

REPOSITORIES: biostudies-literature

altmetric image

Publications

Synthesis of magnesium-nitrogen salts of polynitrogen anions.

Laniel Dominique D   Winkler Bjoern B   Koemets Egor E   Fedotenko Timofey T   Bykov Maxim M   Bykova Elena E   Dubrovinsky Leonid L   Dubrovinskaia Natalia N  

Nature communications 20191004 1


The synthesis of polynitrogen compounds is of fundamental importance due to their potential as environmentally-friendly high energy density materials. Attesting to the intrinsic difficulties related to their formation, only three polynitrogen ions, bulk stabilized as salts, are known. Here, magnesium and molecular nitrogen are compressed to about 50 GPa and laser-heated, producing two chemically simple salts of polynitrogen anions, MgN<sub>4</sub> and Mg<sub>2</sub>N<sub>4</sub>. Single-crystal  ...[more]

Similar Datasets

| S-EPMC5085085 | biostudies-literature
| S-EPMC6164264 | biostudies-literature
| S-EPMC7006493 | biostudies-literature
| S-EPMC8362087 | biostudies-literature
| S-EPMC8508855 | biostudies-literature
| S-EPMC4028125 | biostudies-literature
| S-EPMC9443801 | biostudies-literature
| S-EPMC1421414 | biostudies-literature
| S-EPMC11372555 | biostudies-literature
| S-EPMC1147225 | biostudies-other