Tetraselenium tetranitride

Tetraselenium tetranitride is the inorganic compound with the formula Se4N4. Like the analogous tetrasulfur tetranitride S4N4, Se4N4 is an orange solid. It is however less soluble and more shock-sensitive than S4N4.[2]

Tetraselenium tetranitride
Names
IUPAC name
2,4,6,8-tetraselena-1,3,5,7-tetrazatricyclo[3.3.0.03,7]octane
Other names
nitrogen selenide
Identifiers
3D model (JSmol)
ChemSpider
UNII
  • InChI=1S/N4Se4/c5-1-2-7-3(5)4(6-1)8-2
    Key: KEFYKDIPBYQPHW-UHFFFAOYSA-N
  • N12N3[Se]N([Se]1)N([Se]2)[Se]3
Properties
Se4N4
Molar mass 371.912 g·mol−1
Appearance orange solid
Density 4.223 g/cm3[1]
Hazards
Occupational safety and health (OHS/OSH):
Main hazards
 explosive
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

As determined by X-ray crystallography, Se4N4 adopts a cage structure similar to that of S4N4. The Se–Se and Se–N distances are 2.740 and 1.800 Å, respectively. The N–Se–N angles are 90°.[1][3]

Among its many reactions,[4][5] Se4N4 reacts with aluminium chloride to form adducts of Se2N2.[6]

References
  1. Folkerts, Hella; Neumüller, Bernhard; Dehnicke, Kurt (1994). "Synthese und Kristallstruktur einer neuen Modifikation von Tetraselentetranitrid, Se4N4". Zeitschrift für anorganische und allgemeine Chemie. 620 (6): 1011–1015. doi:10.1002/zaac.19946200610.
  2. Klapötke, T.M. (1992). "Binary Selenium-Nitrogen Species and Related Compounds". In R. Steudel (ed.). The Chemistry of Inorganic Ring Systems. Studies in Inorganic Chemistry. Vol. 14. Elsevier. p. 409. doi:10.1016/B978-0-444-88933-1.50025-8. ISBN 9780444889331.
  3. Bärnighausen, H.; von Volkmann, T.; Jander, J. (1966). "Die Kristallstruktur von Tetrastickstofftetraselenid N4Se4". Acta Crystallographica. 21 (4): 571–577. doi:10.1107/S0365110X66003475.
  4. Kelly, P. F.; Woollins, J. D. (1993). "The Reactivity of Se4N4 in Liquid Ammonia". Polyhedron. 12 (10): 1129–1133. doi:10.1016/S0277-5387(00)88201-7.
  5. Kelly, P. F.; Slawin, A. M. Z.; Soriano-Rama, A. (1997). "Use of Se4N4 and Se(NSO)2 in the Preparation of Palladium Adducts of Diselenium Dinitride, Se2N2; Crystal Structure of [PPh4]2[Pd2Br6(Se2N2)]". Dalton Transactions. 1997 (4): 559–562. doi:10.1039/a606311j.
  6. Kelly, P. F.; Slawin, A. M. Z. (1996). "Preparation and Crystal Structure of [(AlBr3)2(Se2N2)], the First Example of a Main-Group Element Adduct of Diselenium Dinitride". Dalton Transactions. 1996 (21): 4029–4030. doi:10.1039/DT9960004029.
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