[ZnEn 3 ]CrO 4  as a precursor of zinc chromite spinel

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

doi:10.1134/S0022476617070253

[ZnEn₃]CrO₄ as a precursor of zinc chromite spinel

Authors: Zadesenets A.V.¹^,2, Gromilov S.A.¹^,2, Gerasimov E.Y.²^,3, Khranenko S.P.¹, Komarov V.Y.¹^,2
Affiliations:
1. Nikolaev Institute of Inorganic Chemistry, Siberian Branch
2. Novosibirsk National Research State University
3. Boreskov Institute of Catalysis, Siberian Branch
Issue: Vol 58, No 7 (2017)
Pages: 1443-1447
Section: Article
URL: https://journals.rcsi.science/0022-4766/article/view/161657
DOI: https://doi.org/10.1134/S0022476617070253
ID: 161657

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Abstract

The structure of [ZnEn₃]CrO₄ (En is ethylendiamine) complex salt is determined. It is demonstrated that at room temperature the crystallographic characteristics are as follows: а = 9.0942(4) Å, с = 9.7673(4) Å, space group Р-31с (No. 163). Contrary to [ZnEn₃]SO₄, disordered chromate anions participate in its formation. When [ZnEn₃]CrO₄ is heated in a hydrogen atmosphere up to 700 °C, zinc chromite spinel is formed (а = 8.328 Å, space group Fd-3m), which has a complex nanocrystalline structure.

Keywords

complex salt, zinc, chromate anion, ethylendiamine, spinel, crystal chemistry, single crystal X-ray diffraction analysis

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[ZnEn3]CrO4 as a precursor of zinc chromite spinel

Full Text

Abstract

Keywords

About the authors

A. V. Zadesenets

S. A. Gromilov

E. Yu. Gerasimov

S. P. Khranenko

V. Yu. Komarov

Supplementary files

[ZnEn₃]CrO₄ as a precursor of zinc chromite spinel