Cooperative Magnetic Phase Evolution via Oxygen Spin Coupling in a Layered Metal-Organic Framework.

ABSTRACT: Metal-organic frameworks (MOFs) constructed from appropriate building units can exhibit both porosity and long-range magnetic order, enabling the modulation of magnetic states via mass transport. In most guest-responsive MOF magnets, the guest inclusions perturb the framework electronically or structurally and trigger abrupt phase transitions. In contrast, spin-active guests can directly mediate exchange pathways, enabling the continuous and controllable evolution of the magnetic order; however, the kinetic pathways of guest adsorption and spin mediation remain poorly understood. In this study, we demonstrated that the entrapment of O₂ dimers in bottlenecked isolated pores between ferrimagnetic layers triggered a gradual evolution from ferromagnetism to antiferromagnetism in an

SUBMITTER: Zhang J 

PROVIDER: S-EPMC12498387 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature