Tuning structural modulation and magnetic properties in metal-organic coordination polymers [CH₃NH₃]Co_xNi_1-x(HCOO)₃.

ABSTRACT: Three solid solutions of [CH₃NH₃]Co_xNi_1-x(HCOO)₃, with x = 0.25 (1), x = 0.50 (2) and x = 0.75 (3), were synthesized and their nuclear structures and magnetic properties were characterized using single-crystal neutron diffraction and magnetization measurements. At room temperature, all three compounds crystallize in the Pnma orthorhombic space group, akin to the cobalt and nickel end series members. On cooling, each compound undergoes a distinct series of structural transitions to modulated structures. Compound 1 exhibits a phase transition to a modulated structure analogous to the pure Ni compound [Cañadillas-Delgado, L., Mazzuca, L., Fabelo, O., Rodríguez-Carvajal, J. & Petricek, V. (2020). Inorg. Chem. 59, 17896-17905], whereas comp

SUBMITTER: Geers M 

PROVIDER: S-EPMC11533998 | biostudies-literature | 2024 Nov

REPOSITORIES: biostudies-literature