[NiEn3]CrO4: Structure, thermal properties, and pseudomorphism

S. P. Khranenko, V. Yu Komarov, E. Yu Gerasimov, A. V. Zadesenets, E. A. Maksimovsky, S. A. Gromilov

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3 Citations (Scopus)

Abstract

The crystal structure of [NiEn3]CrO4 (En is ethylendiamine), C6H24CrN6NiO4 is studied: a = 9.0408(5) Å, c = 9.7466(4) Å, V = 689.92(8) Å3, space group P63/mmc, Z = 2, dx = 1.704 g/cm3, Ni–N 2.133(9) Å, ∠N–Ni–N 82.4(5)°. The thermal properties are determined. When it is heated in a hydrogen atmosphere, a mixture of nanocrystalline Ni and Cr2O3 powders with coherent scattering regions of 59 nm and 90 nm respectively is formed. It is demonstrated that thermal decomposition products consist of pseudomorphic particles that inherit the sizes and shapes of initial [NiEn3]CrO4 single crystals.

Original languageEnglish
Pages (from-to)1448-1452
Number of pages5
JournalJournal of Structural Chemistry
Volume58
Issue number7
DOIs
Publication statusPublished - 1 Dec 2017

Keywords

  • chromate anion
  • complex salt
  • crystal chemistry
  • ethylendiamine nickel
  • pseudomorphism
  • single crystal X-ray diffraction analysis
  • thermal properties
  • CRYSTAL-STRUCTURES

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