Cobalt–Imidazole Complexes: Effect of Anion Nature on Thermochemical Properties | Sciact - CRIS-system of Boreskov Institute of Catalysis

Cobalt–Imidazole Complexes: Effect of Anion Nature on Thermochemical Properties Full article

Journal

Materials
ISSN: 1996-1944

Output data

Year: 2024, Volume: 17, Number: 12, Article number : 2911, Pages count : 14 DOI: 10.3390/ma17122911

Tags

gas-generation composition; cobalt complex; solvent-free synthesis; imidazole; highenergy ligand; oxidizing anion; cobalt oxide

Authors

Netskina Olga V. ¹ , Sukhorukov Dmitry A. ¹ , Dmitruk Kirill A. ^1,2 , Mukha Svetlana A. ¹ , Prosvirin Igor P. ¹ , Pochtar Alena A. ¹ , Bulavchenko Olga A. ¹ , Paletsky Alexander A. ³ , Shmakov Andrey G. ³ , Suknev Alexey P. ¹ , Komova Oxana V. ¹

Affiliations

1	Boreskov Institute of Catalysis SB RAS, Pr. Akademika Lavrentieva 5, 630090 Novosibirsk, Russia
2	Department of Natural Sciences, Novosibirsk State University, 1 Pirogova Str., 630090 Novosibirsk, Russia
3	Voevodsky Institute of Chemical Kinetics and Combustion SB RAS, 3 Institutskaya Str., 630090 Novosibirsk, Russia

Funding (1)

Ministry of Science and Higher Education of the Russian Federation

FWUR-2024-0034

A solvent-free method was proposed for the synthesis of hexaimidazolecobalt(II) nitrate and perchlorate complexes—[Co(C3H4N2)6](NO3)2 and [Co(C3H4N2)6](ClO4)2—by adding cobalt salts to melted imidazole. The composition, charge state of the metal, and the structure of the resulting complexes were confirmed by elemental analysis, XPS, IR spectroscopy, and XRD. The study of the thermochemical properties of the synthesized complexes showed that [Co(C3H4N2)6](NO3)2 and [Co(C3H4N2)6](ClO4)2 are thermally stable up to 150 and 170 °C, respectively. When the critical temperature of thermal decomposition is reached, oxidative two-stage gasification is observed. In this case, the organic component of the [Co(C3H4N2)6](NO3)2 complex undergoes almost complete gasification to form Co3O4 with a slight admixture of CoO, which makes it attractive as a component of gas-generation compositions, like airbags.

Netskina O.V. , Sukhorukov D.A. , Dmitruk K.A. , Mukha S.A. , Prosvirin I.P. , Pochtar A.A. , Bulavchenko O.A. , Paletsky A.A. , Shmakov A.G. , Suknev A.P. , Komova O.V.
Cobalt–Imidazole Complexes: Effect of Anion Nature on Thermochemical Properties
Materials. 2024. V.17. N12. 2911 :1-14. DOI: 10.3390/ma17122911 WOS Scopus РИНЦ AN PMID OpenAlex

Submitted:	May 3, 2024
Accepted:	Jun 11, 2024
Published print:	Jun 14, 2024
Published online:	Jun 14, 2024

Web of science:	WOS:001255785100001
Scopus:	2-s2.0-85197256049
Elibrary:	68183450
Chemical Abstracts:	2024:1839579
PMID:	38930279
OpenAlex:	W4399674581

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