Mechanism of magnetisation relaxation in {MIII2DyIII2} (M = Cr, Mn, Fe, Al) "Butterfly" complexes: how important are the transition metal ions here?

ABSTRACT: We describe the synthesis, characterisation and magnetic studies of four tetranuclear, isostructural "butterfly" heterometallic complexes: [MIII2LnIII2(μ₃-OH)₂(p-Me-PhCO₂)₆(L)₂] (H₂L = 2,2'-((pyridin-2-ylmethyl)azanediyl)bis(ethan-1-ol), M = Cr, Ln = Dy (1), Y (2), M = Mn, Ln = Dy (3), Y (4)), which extend our previous study on the analogous 5 {Fe₂Dy₂}, 6 {Fe₂Y₂} and 7 {Al₂Dy₂} compounds. We also present data on the yttrium diluted 7 {Al₂Dy₂}: 8 {Al₂Dy_0.18Y_1.82}. Compounds dc and ac magnetic susceptibility data reveal single-molecule mag

SUBMITTER: Peng Y 

PROVIDER: S-EPMC6552965 | biostudies-literature | 2019 Jun

REPOSITORIES: biostudies-literature