Bildung von NH4[Hg3(NH)2](NO3)3 und umwandlung in [Hg2N](NO3)

Translated title of the contribution: Formation of NH4[Hg3(NH)2](NO3)3 and transformation to [Hg2N](NO3)

Peter Nockemann, Gerd Meyer*

*Corresponding author for this work

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

NH4[Hg3(NH)2](NO3)3 (1) and [Hg2N](NO3) (2) are obtained from conc. aqueous ammonia solutions of Hg(NO3)2 at ambient temperature and under hydrothermal conditions at 180°C, respectively, as colourless and dark yellow to light brown single crystals. The crystal structures {NH4[Hg3(NH)2](NO3)3: cubic, P4132, a = 1030.4(2) pm, Z = 4, Rall = 0.028; [Hg2N](NO3): tetragonal, P43212, a = 1540.4(1), c = 909.8(1) pm, Z = 4, Rall 0.054} have been determined from single crystal data. Both exhibit network type structures in which [HNHg3] and [NHg4] tetrahedra of the partial structures of 1 and 2 are connected via three and four vertices, respectively. 1 transforms at about 270°C in a straightforward reaction to 2 whereby the decomposition products of NH4NO3 are set free. 2 decomposes at about 380°C forming yellow HgO. Most certainly, 1 is identical with a mineral previously analyzed as "Hg(NH2)(NO3)" with the same Hg:N:O ratio.

Original languageGerman
Pages (from-to)2709-2714
Number of pages6
JournalZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE
Volume628
Issue number12
DOIs
Publication statusPublished - 26 Nov 2002
Externally publishedYes

Keywords

  • Imide
  • Mercury
  • Millon's base

ASJC Scopus subject areas

  • Inorganic Chemistry

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