Monosulfur mononitride

Structural formula
General
Surname	Monosulfur mononitride
other names	Sulfur mononitride; Mononitrogen monosulfide;
Molecular formula	NS
External identifiers / databases
PubChem	5463441
ChemSpider	4576119
Wikidata	Q133572
properties
Molar mass	46.07 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 .

Monosulfur mononitride is an inorganic chemical compound of sulfur from the group of covalent nitrides . The compound is one next to the disulfur dinitride , the Tetraschwefeldinitrid , the Pentaschwefelhexanitrid , the tetrasulfur tetranitride , the Monoschwefeldinitrid , the Oligoschwefeldinitriden and the polymeric polythiazyl (SN) _x to the group of sulfur-nitrogen compounds or Schwefelnitride . The connection is isovalent-electronic with the nitrogen monoxide and thus also a radical.

It arises from electrical discharges in a gas mixture of sulfur and nitrogen or from the thermal decomposition of gaseous tetrasulfur tetranitride. In space it was observed in a giant molecular cloud and in comet envelopes .

The compound is unstable and quickly breaks down into sulfur, nitrogen and higher sulfur nitrides. The enthalpy of formation is endothermic at 281 kJ mol ⁻¹ . The bond length determined by means of IR spectroscopy is 149.7 μm. The dissociation energy for the SN bond is 463 kJ mol ⁻¹ .

Analogous to nitrogen monoxide, the release of an electron forms the thionitrosyl cation NS ⁺ , which occurs in salts such as the thionitrosyl hexafluorophosphate NSPF ₆ or in metal complexes. There are no known compounds with the nitroxyl ion NO ^- analogue thionitroxyl ion NS ^- resulting from the uptake of an electron .

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.
↑ ^a ^b ^c ^d ^e Wiberg, E .; Wiberg, N .; Holleman, AF: Inorganische Chemie , 103rd edition, 2017 Walter de Gruyter GmbH & Co. KG, Berlin / Boston, ISBN 978-3-11-026932-1 , p. 680, (accessed from De Gruyter Online).
↑ ^a ^b ^c Entry on sulfur-nitrogen compounds. In: Römpp Online . Georg Thieme Verlag, accessed on March 2, 2017.
↑ Canaves, MV; de Almeida, AA; Boice, DC; Sanzovo, GC: Nitrogen Sulfide in Comets Hyakutake (C / 1996 B2) and Hale-Bopp (C / 1995 O1) in Earth, Moon, and Planets 90 (2002) 335-347, doi : 10.1023 / A: 1021582300423 .
^ Teague, CM; O'Brien, TA; O'Brien, JF: Theoretical Comparison of the Bonding in CpCr (CO) 2 (NX) [X = O, S, Se, Te] in J. Coord. Chem. 55 (2002) 627-631, doi : 10.1080 / 00958970290027480 .

[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.

[Holleman-Wiberg2017-2] Wiberg, E .; Wiberg, N .; Holleman, AF: Inorganische Chemie , 103rd edition, 2017 Walter de Gruyter GmbH & Co. KG, Berlin / Boston, ISBN 978-3-11-026932-1 , p. 680, (accessed from De Gruyter Online).

[Roempp-3] Entry on sulfur-nitrogen compounds. In: Römpp Online . Georg Thieme Verlag, accessed on March 2, 2017.

[4] Canaves, MV; de Almeida, AA; Boice, DC; Sanzovo, GC: Nitrogen Sulfide in Comets Hyakutake (C / 1996 B2) and Hale-Bopp (C / 1995 O1) in Earth, Moon, and Planets 90 (2002) 335-347, doi : 10.1023 / A: 1021582300423 .

[Teague-5] Teague, CM; O'Brien, TA; O'Brien, JF: Theoretical Comparison of the Bonding in CpCr (CO) 2 (NX) [X = O, S, Se, Te] in J. Coord. Chem. 55 (2002) 627-631, doi : 10.1080 / 00958970290027480 .