Synthesis, Structures, and Magnetic Properties of End-to-End Azide-Bridged Manganese(III) Chains: Elucidation of Direct Magnetostructural Correlation
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https://figshare.com/articles/dataset/Synthesis_Structures_and_Magnetic_Properties_of_End_to_End_Azide_Bridged_Manganese_III_Chains_Elucidation_of_Direct_Magnetostructural_Correlation/2268652
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资源简介：
The
two one-dimensional chain compounds [Mn(L1)(N3)]·H2O (1·H2O; H2L1 = 2,2′-((1E,1′E)-ethane-1,2-diylbis(azan-1-yl-1-ylidene))bis(phenylmethan-1-yl-1-ylidene)diphenol)
and [Mn(L2)(N3)] (2; H2L2 = 2,2′-((1E,1′E)-2,2-dimethylpropane-1,3-diyl)bis(azan-1-yl-1-ylidene)-bis(phenylmethan-1-yl-1-ylidene)diphenol)
bridged by single end-to-end azides were prepared via a self-assembly
process. Each Mn(III) ion exhibits a characteristic Jahn–Teller
elongation along the chain direction. For both compounds, antiferromagnetic
interactions between Mn(III) spins within a chain are transmitted
through the azide ligands, together with the apparent occurrence of
spin canting at low temperatures. Remarkably, the coupling constants
(J) for 1 and 2 exceed
those reported for end-to-end azide-linked Mn(III) systems. A systematic
magnetostructural relationship based on the torsion angle is established
in terms of the torsion angle Mn–Nax···Nax–Mn (ax = axial) for the first time.
创建时间：
2014-08-04
