Crystal Structure of Complex[Hpip] [(salen)FeⅢ(OX)] and Synthesis and Magnetism of Heterotrinuclear Complexes

Abstract

Abstract:

The Fe(Ⅲ) complex with oxalate (OX) bridge [Hpip][(salen)Fe^Ⅲ(OX)] has been synthesized and the crystal structure has been determind, where pip is piperidine,salen is ethylenebis (salicylideneiminate). Three new heterotrinuclear complexes were synthesized and characterized with the molecular block,namely [(salen)Fe^Ⅲ(μ-OX)]₂[M^Ⅱ(H₂O)₂]·nH₂O[M^Ⅱ=Cu^Ⅱ(1), Ni^Ⅱ(2),Fe^Ⅱ(3)]. The temperature dependence of the magnetic susceptibility of the complexes were measured over the 4.2-300 K range. These results reveal antiferromagnetic, not ferroraagnetic-Jike behaviour(irregular spin state structure) for the complexes. The prerequisite and full condition for Lhe presence of irregular spin state within heterotrinuclear complexes have been discussed theoretically and experimentally.

Key words: Oxalate bridge, Heterotrinuclear complexes, Magnetic property, Irregular spin state

CLC Number:

O614

TrendMD:

YANG Guang-Ming, ZHANG Lei. Crystal Structure of Complex[Hpip] [(salen)Fe^Ⅲ(OX)] and Synthesis and Magnetism of Heterotrinuclear Complexes[J]. Chem. J. Chinese Universities, 2001, 22(S1): 183.

References

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