TY - JOUR

T1 - Complex salts [Pd(NH3)4][Pd(NH3)3NO2] [CrOx3]·H2O and [Pd(NH3)4][Pd(NH3)3NO2] [CoOx3]·H2O and solid solutions [Pd(NH3)4] [Pd(NH3)3NO2][CoOx3] x[RhOx3]1–x·H2O: promising precursors for porous nanoalloys

AU - Gladysheva, M. V.

AU - Plyusnin, P. E.

AU - Komarov, V. Yu

AU - Tsygankova, A. R.

AU - Gerasimov, E. Yu

AU - Shubin, Yu V.

AU - Korenev, S. V.

N1 - Funding Information: The work was supported by the Russian Science Foundation (project No. 21-13-00414) and the Ministry of Science and Higher Education of the Russian Federation (project No. 121031700315-2). Publisher Copyright: © 2022, Pleiades Publishing, Ltd.

PY - 2022/4

Y1 - 2022/4

N2 - New complex salts [Pd(NH3)4][Pd(NH3)3NO2][CrOx3]·H2O I, [Pd(NH3)4][Pd(NH3)3NO2][CoOx3]·H2O II, and a series of solid solutions [Pd(NH3)4][Pd(NH3)3NO2][CoOx3]x[RhOx3]1–x·H2O III–V(Formula presented.) are obtained and characterized. The compounds are studied by powder X-ray diffraction (XRD), elemental analysis, and IR spectroscopy. Crystal structures of complex salts I, II and K5[Pd(NH3)4][CrOx3]2NO3·6H2O VI are determined by single crystal XRD. Complex salts I and II crystallize in the monoclinic crystal system (space group of I and II is P21/n); complex salt VI crystallizes in the triclinic crystal system (space group of VI is (Formula presented.)). The thermal behavior of compounds I–V is investigated in different gas atmospheres. Final products of the thermolysis of [Pd(NH3)4][Pd(NH3)3NO2][CoOx3]·H2O and [Pd(NH3)4][Pd(NH3)3NO2][CoOx3]x[RhOx3]1–x·H2O solid solutions in the reducing atmosphere are Pd0.7Co0.3, Pd0.7CoxRh0.3–x. The thermolysis of [Pd(NH3)4][Pd(NH3)3NO2][CrOx3]·H2O complex salt under the same conditions results in the formation of a two-phase mixture Pd1–yCry + Сr2O3 where y < 0.1. In the oxidizing atmosphere, the final products are mixtures of oxide phases of initial metals.

AB - New complex salts [Pd(NH3)4][Pd(NH3)3NO2][CrOx3]·H2O I, [Pd(NH3)4][Pd(NH3)3NO2][CoOx3]·H2O II, and a series of solid solutions [Pd(NH3)4][Pd(NH3)3NO2][CoOx3]x[RhOx3]1–x·H2O III–V(Formula presented.) are obtained and characterized. The compounds are studied by powder X-ray diffraction (XRD), elemental analysis, and IR spectroscopy. Crystal structures of complex salts I, II and K5[Pd(NH3)4][CrOx3]2NO3·6H2O VI are determined by single crystal XRD. Complex salts I and II crystallize in the monoclinic crystal system (space group of I and II is P21/n); complex salt VI crystallizes in the triclinic crystal system (space group of VI is (Formula presented.)). The thermal behavior of compounds I–V is investigated in different gas atmospheres. Final products of the thermolysis of [Pd(NH3)4][Pd(NH3)3NO2][CoOx3]·H2O and [Pd(NH3)4][Pd(NH3)3NO2][CoOx3]x[RhOx3]1–x·H2O solid solutions in the reducing atmosphere are Pd0.7Co0.3, Pd0.7CoxRh0.3–x. The thermolysis of [Pd(NH3)4][Pd(NH3)3NO2][CrOx3]·H2O complex salt under the same conditions results in the formation of a two-phase mixture Pd1–yCry + Сr2O3 where y < 0.1. In the oxidizing atmosphere, the final products are mixtures of oxide phases of initial metals.

KW - chromium

KW - cobalt

KW - complex salts

KW - palladium

KW - porous nanoalloys

KW - powder X-ray diffraction analysis

KW - single crystal X-ray diffraction analysis

KW - thermal analysis

UR - http://www.scopus.com/inward/record.url?scp=85132273611&partnerID=8YFLogxK

UR - https://www.mendeley.com/catalogue/850a6789-0a3d-30a1-a115-81717fed6f84/

U2 - 10.1134/S0022476622040060

DO - 10.1134/S0022476622040060

M3 - Article

AN - SCOPUS:85132273611

VL - 63

SP - 556

EP - 568

JO - Journal of Structural Chemistry

JF - Journal of Structural Chemistry

SN - 0022-4766

IS - 4

ER -