Spontaneous Chiral Resolution of a Mn^III Spin-Crossover Complex with High Temperature 80 K Hysteresis.

ABSTRACT: Non-centrosymmetric spin-switchable systems are of interest for their prospective applications as magnetically active non-linear optical materials and in multiferroic devices. Chiral resolution of simple spin-crossover chelate complexes into the Δ and Λ forms offers a facile route to homochiral magnetic switches, which could be easily enantiomerically enriched. Here, we report the spontaneous resolution of a new hysteretic spin-crossover complex, [Mn^III (sal₂ 323)]SCN ⋅ EtOH (1), into Δ and Λ forms, without the use of chiral reagents, where sal₂ 323 is a Schiff base resulting from condensation of 1,2-bis(3-aminopropylamino)ethane with 2-hydroxybenzaldehyde. The enantiopurity of the Δ and Λ isomers was confirmed by single crystal X-ray diffraction and circul

SUBMITTER: Kelly CT 

PROVIDER: S-EPMC10946779 | biostudies-literature | 2023 Jul

REPOSITORIES: biostudies-literature