Synthesis and Structural Characterization of the Tetranuclear Iron(III) Cluster with Salicylic Acid

Chemistry Journal of Moldova: General, Industrial and Ecological Chemistry

Viorina Gorinchoy¹ 

[1] Institute of Chemistry, 3, Academiei str., Chisinau MD 2028, Republic of Moldova;

关键词: homotetranuclear salicylate;    iron(iii);    cluster;    ir spectroscopy;    x-ray crystal structure;   

DOI  :  10.19261/cjm.2020.758

来源: DOAJ

【 摘 要 】

A new tetra-homonuclear iron(III) cluster, [Fe4O2(Sal)4(H2O)6]·4DMA·0.75H2O, where Sal= salicylic acid and DMA= N,N-dimethylacetamide consolidated via two µ3-oxo- and four salicylate-bridges was synthesized and characterized by IR spectroscopic method as well as by single crystal X-ray diffraction analysis. The structure of the obtained tetranuclear compound consists of four FeIII atoms in a “butterfly” arrangement. The coordination sphere of each of the two central FeIII atoms is generated by two μ3-oxo-bridging atoms and four oxygen atoms provided by the tridentate-bridging Sal2- ligands, while the coordination polyhedron of another two iron atoms involve six oxygen atoms from three water molecules, two salicylic and one μ3-oxigen atom. The Fe-O distances within Fe-O-Fe bridge are of 2.102(3) Å (for wing-body) and 2.038(3) Å (for body-body).

【 授权许可】

Unknown