%0 Journal Article
%T Tetranuclear Hetro-Metal [MnIII2NiII2] Complexes Involving Defective Double-Cubane Structure: Synthesis, Crystal Structures, and Magnetic Properties
%J Magnetochemistry | An Open Access Journal from MDPI
%D 2019
%R https://doi.org/10.3390/magnetochemistry5010014
%X Tetranuclear hetero-metal Mn III 2Ni II 2 complexes, [Mn 2Ni 2(L) 4(OAc) 2] ( 1) and [Mn 2Ni 2(L) 4(NO 3) 2] ( 2) [H 2L = N-(2-hydroxymethylphenyl)-5,6-benzosalicylideneimine], have been synthesized and characterized by X-ray crystal structure analyses, infrared spectra, and elemental analyses. The structure analyses revealed that the complexes have a defective double-cubane metal core connected by ¦Ì 3-alkoxo bridges. Complexes consist of two bis-¦Ì-alkoxo bridged Mn IIINi II heteronuclear units making a dimer-of-dimers structure. The double-cubane cores are significantly distorted due to an effect of syn¨Csyn mode acetato or nitrato bridges. Magnetic measurements indicate that weak antiferromagnetic interactions (Mn-Ni = £¿0.66 ~ £¿4.19 cm ¨C1) are dominant in the hetero-metal core. View Full-Tex
%U https://www.mdpi.com/2312-7481/5/1/14