Crystal Structure and Thermal Properties of Double-Complex Salts [M1(NH3)6][M2(C2O4)3] (M1, M2 = Co, Rh) and K3[Rh(NH3)6][Rh(C2O4)3]2∙6H2O Full article
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International Journal of Molecular Sciences
ISSN: 1661-6596 , E-ISSN: 1422-0067 |
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| Output data | Year: 2023, Volume: 24, Number: 15, Article number : 12279, Pages count : 17 DOI: 10.3390/ijms241512279 | ||||
| Tags | complexes of cobalt and rhodium; crystal structure of complex salt; thermolysis; solid solution of metals | ||||
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Funding (2)
| 1 | Ministry of Science and Higher Education of the Russian Federation | 121031700315–2 |
| 2 | Russian Science Foundation | 21-73-20203 |
Abstract:
Here, seven new double-complex salts, [M1(NH3)6][M2(C2O4)3] (M1, M2 = Co, Rh) and K3[Rh(NH3)6][Rh(C2O4)3]2∙6H2O types, are synthesised. The crystal structure and composition of DCS (double-complex salts) are studied by SCXRD, XRD, CHN and IR methods. The complex salts of the [M1(NH3)6][M2(C2O4)3] (M1, M2 = Co, Rh) type can be crystallised both as a crystalline hydrate [M1(NH3)6][M2(C2O4)3]·3H2O (sp. gr. P-3) and as an anhydrous complex (sp. gr. P-1) depending on the synthesis conditions. The process of [Rh(NH3)6][Rh(C2O4)3] formation is significantly dependent on the synthesis temperature. At room temperature, a mixture is formed comprising [Rh(NH3)6][Rh(C2O4)3] and K3[Rh(NH3)6][Rh(C2O4)3]2∙6H2O, while the [Rh(NH3)6][Rh(C2O4)3] target product crystallises at elevated temperatures. The thermal behaviour of double-complex salts is studied by the STA, EGA-MS, IR and XRD methods. The complete decomposition of complex salts in helium and hydrogen atmospheres resulting in metals or CoxRh1−x solid solutions is achieved at temperatures of 320–450 °C.
Cite:
Smirnov P.
, Filatov E.
, Kuratieva N.
, Plyusnin P.
, Korenev S.
Crystal Structure and Thermal Properties of Double-Complex Salts [M1(NH3)6][M2(C2O4)3] (M1, M2 = Co, Rh) and K3[Rh(NH3)6][Rh(C2O4)3]2∙6H2O
International Journal of Molecular Sciences. 2023. V.24. N15. 12279 :1-17. DOI: 10.3390/ijms241512279 WOS Scopus OpenAlex
Crystal Structure and Thermal Properties of Double-Complex Salts [M1(NH3)6][M2(C2O4)3] (M1, M2 = Co, Rh) and K3[Rh(NH3)6][Rh(C2O4)3]2∙6H2O
International Journal of Molecular Sciences. 2023. V.24. N15. 12279 :1-17. DOI: 10.3390/ijms241512279 WOS Scopus OpenAlex
Dates:
| Submitted: | Jun 29, 2023 |
| Accepted: | Jul 30, 2023 |
| Published print: | Jul 31, 2023 |
| Published online: | Jul 31, 2023 |
Identifiers:
| Web of science: | WOS:001045571200001 |
| Scopus: | 2-s2.0-85167751465 |
| OpenAlex: | W4385461638 |