Phosphorus (III) nitride

Structural formula
	No drawing available
General
Surname	Phosphorus (III) nitride
Molecular formula	PN
External identifiers / databases
PubChem	117441
Wikidata	Q25323782
properties
Molar mass	44.8 g mol −1
safety instructions
GHS hazard labeling ; no classification available
GHS hazard labeling ; no classification available
	As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Phosphorus (III) nitride is an inorganic chemical compound of phosphorus from the group of nitrides . The monomeric form only exists at higher temperatures. The polymeric form probably consists of long chains, the spatial orientations of which differ widely.

Extraction and presentation

Phosphorus (V) nitride decomposes from 800 ° C to phosphorus (III) nitride and nitrogen .

{\ displaystyle \ mathrm {P_ {3} N_ {5} \ longrightarrow 3 \ PN + N_ {2}}}

Occurrence

PN was identified in interstellar space by its rotation spectrum.

properties

Monomeric phosphorus (III) nitride is metastable with respect to disproportionation in P ₂ and N ₂ :

{\ displaystyle \ mathrm {2 \ PN \ longrightarrow P_ {2} + N_ {2} +196 \ kJ}}

At lower temperatures PN forms colorless polymers . Yellow to brown polymers with an excess of nitrogen are also known, the stoichiometry of which is between PN and P ₃ N ₅ .

The bond distance in the molecule is 149.1 pm and corresponds to the calculated value for a triple bond (150 pm).

Individual evidence

↑ This substance has either not yet been classified with regard to its hazardousness or a reliable and citable source has not yet been found.
^ RJ Meyer: Phosphorus Part C. The compounds of phosphorus . Springer-Verlag, 1965, ISBN 978-3-662-11551-0 , p. 305 ( limited preview in Google Book Search).
^ ^A ^b A. F. Holleman , E. Wiberg , N. Wiberg : Textbook of Inorganic Chemistry . 101st edition. Walter de Gruyter, Berlin 1995, ISBN 3-11-012641-9 , p. 789.
↑ Turner, BE; Bally, John: Detection of interstellar PN - The first identified phosphorus compound in the interstellar medium , Astrophysical Journal , Part 2 - Letters to the Editor, vol. 321, Oct. 1, 1987, pp. L75-L79; bibcode : 1987ApJ ... 321L..75T .

[NV-1] This substance has either not yet been classified with regard to its hazardousness or a reliable and citable source has not yet been found.

[R._J._Meyer-2] RJ Meyer: Phosphorus Part C. The compounds of phosphorus . Springer-Verlag, 1965, ISBN 978-3-662-11551-0 , p. 305 ( limited preview in Google Book Search).

[HoWi-3] A ^b A. F. Holleman , E. Wiberg , N. Wiberg : Textbook of Inorganic Chemistry . 101st edition. Walter de Gruyter, Berlin 1995, ISBN 3-11-012641-9 , p. 789.

[4] Turner, BE; Bally, John: Detection of interstellar PN - The first identified phosphorus compound in the interstellar medium , Astrophysical Journal , Part 2 - Letters to the Editor, vol. 321, Oct. 1, 1987, pp. L75-L79; bibcode : 1987ApJ ... 321L..75T .