Aromatic Hexazine [N6]4- Anion Revealed in the Complex Structure of the High-Pressure Potassium Nitride K9N56

Dominique Laniel*, Florian Trybel, Yuqing Yin, Timofey Fedotenko, Saiana Khandarkhaeva, Andrey Aslandukov, Alexei I. Abrikosov, Talha Bin Masood, Carlotta Giacobbe, Eleanor Lawrence Bright, Konstantin Glazyrin, Michael Hanfland, Ingrid Hotz, Igor A. Abrikosov, Leonid Dubrovinsky, Natalia Dubrovinskaia

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract / Description of output

Recent high-pressure synthesis of pentazolates and subsequent stabilization of the aromatic [N5]- anion at atmospheric pressure had an immense impact on nitrogen chemistry. Here, we present the first synthesis of an aromatic hexazine [N6]4- anion realized in high-pressure potassium nitride K9N56 at 46 and 61 GPa. The extremely complex structure of K9N56 was solved based on synchrotron single-crystal X-ray diffraction and corroborated by density functional theory calculations. This result resolves a long-standing question of the aromatic hexazine stability and the possibility of its synthesis.
Original languageEnglish
JournalNature Chemistry
Publication statusAccepted/In press - 26 Jan 2023

Keywords / Materials (for Non-textual outputs)

  • cond-mat.mtrl-sci

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