نتريد الپوتاسيوم

Potassium nitride is an unstable chemical compound. Several syntheses were erroneously claimed in the 19th century, and by 1894 it was assumed that it did not exist.[2]

نتريد الپوتاسيوم
الأسماء
اسم أيوپاك
Potassium nitride
Identifiers
رقم CAS
3D model (JSmol)
InChI InChI={{{value}}}
SMILES
الخصائص
الصيغة الجزيئية K3N
كتلة مولية 131.3016 g/mol
المظهر Slightly yellow crystalline solid
نقطة الانصهار
مركبات ذا علاقة
Lithium nitride
Sodium nitride
ما لم يُذكر غير ذلك، البيانات المعطاة للمواد في حالاتهم العيارية (عند 25 °س [77 °ف]، 100 kPa).
مراجع الجدول

However, a synthesis of this compound was claimed in 2004. It is observed to have the anti-TiI 3 structure below 233 K (−40 °C; −40 °F), although a Li 3P-type structure should be more stable. Above this temperature, it converts to an orthorhombic phase. This compound was produced by the reaction of potassium metal and liquid nitrogen at 77 K (−196.2 °C; −321.1 °F) under vacuum:[1]

6K + N2 → 2K3N

This compound decomposes back into potassium and nitrogen at room temperature.

This compound is unstable due to steric hindrance.

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References

  1. ^ أ ب Fischer, D.; Cancarevic, Z.; Schön, J. C.; Jansen, M. (January 2004). "Zur Synthese und Struktur von K3N". Zeitschrift für anorganische und allgemeine Chemie (in German). 630 (1): 156–160. doi:10.1002/zaac.200300280.{{cite journal}}: CS1 maint: unrecognized language (link)
  2. ^ Chemical Society (Great Britain) (1894). Journal - Chemical Society, London. Chemical Society. pp. 512–.