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- Title
Synthesis and investigation of the thermal properties of [Co(NH<sub>3</sub>)<sub>6</sub>][Co(C<sub>2</sub>O<sub>4</sub>)<sub>3</sub>].3H<sub>2</sub>O and [Ir(NH<sub>3</sub>)<sub>6</sub>][Ir(C<sub>2</sub>O<sub>4</sub>)<sub>3</sub>].
- Authors
Filatov, Evgeny; Lagunova, Varvara; Kochetygov, Ilia; Plyusnin, Pavel; Kuratieva, Natalia; Kostin, Gennadiy; Korenev, Sergey
- Abstract
The complexes [Co(NH3)6][Ir(C2O4)3] and [Ir(NH3)6][Co(C2O4)3].H2O have previously been synthesized and their thermal properties studied. The [Ir(NH3)6][Ir(C2O4)3] and [Co(NH3)6][Co(C2O4)3].3H2O complexes considered here are the end members in a series of possible isostructural solid solutions based on the complex salts in the Co-Ir system. Their crystal structures and thermal properties are described in detail, including temperature-dependent in situ X-ray diffraction. During the thermolysis of these compounds, layered metal nanoparticles are formed. Close attention is paid to the details of the [Co(NH3)6][Ir(C2O4)3] synthesis. It has been shown that the formation of this complex salt is temperature dependent; upon heating, a new phase of the K3[Co(NH3)6][Ir(C2O4)3]2.6H2O salt is formed, which incorporates the initial iridium compound into the crystal structure of the double complex salt. The target [Co(NH3)6][Ir(C2O4)3] product is obtained if the synthesis is carried out at room temperature.
- Subjects
DOUBLE salts; IRIDIUM compounds; METAL nanoparticles; CRYSTAL structure; X-ray diffraction; THERMAL properties
- Publication
Acta Crystallographica Section B: Structural Science, Crystal Engineering & Materials, 2022, Vol 78, Issue 3, Part 1, p537
- ISSN
2052-5192
- Publication type
Article
- DOI
10.1107/S205252062200405X