Confinement inside MOFs Enables Guest-Modulated Spin Crossover of Otherwise Low-Spin Coordination Cages.

ABSTRACT: Confinement of discrete coordination cages within nanoporous lattices is an intriguing strategy to gain unusual properties and functions. We demonstrate here that the confinement of coordination cages within metal-organic frameworks (MOFs) allows the spin state of the cages to be regulated through multilevel host-guest interactions. In particular, the confined in situ self-assembly of an anionic Fe^II₄L₆ nanocage within the mesoporous cationic framework of MIL-101 leads to the ionic MOF with an unusual hierarchical host-guest structure. While the nanocage in solution and in the solid state has been known to be invariantly diamagnetic with low-spin Fe^II, Fe^II₄L₆@MIL-101 exhibits spin-crossover (SCO) behavior in resp

SUBMITTER: Yang SL 

PROVIDER: S-EPMC10466325 | biostudies-literature | 2023 Aug

REPOSITORIES: biostudies-literature