Metal-Dilution Effect on Spin Transition Behavior of Solvated/Desolvated Hydrogen-Bonded Cobalt(II)-Organic Frameworks.

ABSTRACT: Terpyridine-based cobalt(II) complex, [Co^II(HL)₂] (1; H₂L = 2,2':6',2″-terpyridine-5,5″-diyl dicarboxylic acid), forms a hydrogen-bonded diamond framework with solvent absorption and desorption capabilities. The desolvated form (1·desolv) exhibits spin transition (ST) behavior accompanied by thermal hysteresis. To investigate the effect of metal-dilution, an Fe²⁺ center, which has a low-spin state (S = 0) and coordinates to two terpyridine moieties, was introduced. The resulting complexes, [Co^II _x Fe^II _1-x (HL)₂], where x = 0.88 (2), 0.55 (3), and 0 (4), demonstrated a significant influence of metal-dilution on the desolvated form

SUBMITTER: Yamato K 

PROVIDER: S-EPMC11780442 | biostudies-literature | 2025 Jan

REPOSITORIES: biostudies-literature