Double Complex Salts Based on [Rh(NH3)6]3+ as Precursors for Rh–Nb and Rh–V Alloy Systems: Synthesis, Structure, and Thermal Properties | Sciact - CRIS-system of Boreskov Institute of Catalysis

Double Complex Salts Based on [Rh(NH3)6]3+ as Precursors for Rh–Nb and Rh–V Alloy Systems: Synthesis, Structure, and Thermal Properties Full article

Journal

New Journal of Chemistry
ISSN: 1144-0546 , E-ISSN: 1369-9261

Output data

Year: 2025, Volume: 49, Number: 43, Pages: 18753-18766 Pages count : 14 DOI: 10.1039/d5nj03210e

Authors

Bautina Sofia ^1,2 , Vorobyeva Sofia ² , Rudzis Zakhar ^1,2 , Rudneva Yuliya ² , Nadolinny Vladimir ² , Plusnin Pavel ² , Sukhikh Taisiya ² , Zhurenok Angelina ³ , Kozlova Ekaterina ³ , Korenev Sergey ²

Affiliations

1	Novosibirsk State University, 1, Pirogova str., Novosibirsk 630090, Russia
2	Nikolaev Institute of Inorganic Chemistry, Siberian Branch of Russian Academy of Sciences, 3, Acad. Lavrentiev Ave., Novosibirsk 630090, Russia
3	Federal Research Center, Boreskov Institute of Catalysis, 630090 Novosibirsk, Russia

The complex [Rh(NH3)6](NO3)3 (I) has been synthesized, and its crystal structure has been determined for the first time. The syntheses of double complex salts (DCS) [Rh(NH3)6][NbO(C2O4)3]·4H2O (II) and [Rh(NH3)6]2[(μ2-C2O4)(VO(C2O4)2)2]·6H2O (III) were carried out. The complexes were characterized by single-crystal and powder X-ray diffraction, IR, UV-Vis (III), diffuse reflectance spectroscopy (III), and EPR (III). Thermal decomposition of DCS II and III in inert and reducing atmospheres was studied. Thermal decomposition of [Rh(NH3)6][NbO(C2O4)3]·4H2O (II) in a hydrogen atmosphere resulted in the formation of the bimetallic solid solution Rh0.83Nb0.17 and NbO2, while in the case of [Rh(NH3)6]2[(μ2-C2O4)(VO(C2O4)2)2]·6H2O (III), a phase with the structure of intermetallic Rh3V and V2O3 was formed. The photocatalytic activity of thermolysis products in Rh–Nb and Rh–V systems was tested in the process of hydrogen production. The Rh–Nb/g-C3N4 catalyst showed a H2 evolution rate of about 0.69 mmol h−1 gcat−1 and Rh–Nb/TiO2 catalysts showed about 0.29 mmol h−1 gcat−1 under 410 nm irradiation.

Bautina S. , Vorobyeva S. , Rudzis Z. , Rudneva Y. , Nadolinny V. , Plusnin P. , Sukhikh T. , Zhurenok A. , Kozlova E. , Korenev S.
Double Complex Salts Based on [Rh(NH3)6]3+ as Precursors for Rh–Nb and Rh–V Alloy Systems: Synthesis, Structure, and Thermal Properties
New Journal of Chemistry. 2025. V.49. N43. P.18753-18766. DOI: 10.1039/d5nj03210e WOS OpenAlex

Submitted:	Aug 8, 2025
Accepted:	Sep 23, 2025
Published online:	Oct 3, 2025

Web of science:	WOS:001593350900001
OpenAlex:	W4414776537

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