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Hexacoordinated nitrogen(V) stabilized by high pressure.

ABSTRACT: In all of its known connections nitrogen retains a valence shell electron count of eight therefore satisfying the golden rule of chemistry - the octet rule. Despite the diversity of nitrogen chemistry (with oxidation states ranging from?+?5 to -3), and despite numerous efforts, compounds containing nitrogen with a higher electron count (hypervalent nitrogen) remain elusive and are yet to be synthesized. One possible route leading to nitrogen's hypervalency is the formation of a chemical moiety containing pentavalent nitrogen atoms coordinated by more than four substituents. Here, we present theoretical evidence that a salt containing hexacoordinated nitrogen(V), in the form of an NF₆^- anion, could be synthesized at a modest pressure of 40?GPa (=400?kbar) via spontaneous oxidation of NF₃ by F₂. Our results indicate that the synthesis of a new class of compounds containing hypervalent nitrogen is within reach of current high-pressure experimental techniques.

SUBMITTER: Kurzydlowski D

PROVIDER: S-EPMC5093683 | biostudies-literature | 2016 Nov

REPOSITORIES: biostudies-literature

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Hexacoordinated nitrogen(V) stabilized by high pressure.

Kurzydłowski Dominik D Zaleski-Ejgierd Patryk P

Scientific reports 20161103

In all of its known connections nitrogen retains a valence shell electron count of eight therefore satisfying the golden rule of chemistry - the octet rule. Despite the diversity of nitrogen chemistry (with oxidation states ranging from + 5 to -3), and despite numerous efforts, compounds containing nitrogen with a higher electron count (hypervalent nitrogen) remain elusive and are yet to be synthesized. One possible route leading to nitrogen's hypervalency is the formation of a chemical moiety c ...[more]

PMID: 27808104

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