3 years ago

Cyano bridged heterometallic Mn(II)-Fe(III) aggregates: Synthesis, structure and magnetic properties

Cyano bridged heterometallic Mn(II)-Fe(III) aggregates: Synthesis, structure and magnetic properties
Syntheses, structures and magnetic properties of two new cyano bridged heterometallic complexes, [{Mn(L)(H2O)}2{Mn(L)}{Fe(CN)6}2]·9H2O (1) and [Mn(L)(H2O)2]2[{Mn(L)(H2O)}2{Fe(CN)6}][{Mn(L)}2{Fe(CN)6}3]·13H2O (2) [L=2,6-diacetylpyridine bis(phenylhydrazone)] are reported. Although the pentanuclear cyano bridged structural morphology observed in 1 is prevalent, complex 2 represents a hitherto unknown cyano bridged decanuclear species where pentanuclear {Mn2Fe3}, trinuclear {Mn2Fe} and mononuclear complex ions are present. Investigation of magnetic properties reveal that both the complexes 1 & 2 have irregular spin state structures and antiferromagnetic interactions are operative between the adjacent spin carriers.

Publisher URL: www.sciencedirect.com/science

DOI: S0020169317310939

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