| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1304872 | Inorganic Chemistry Communications | 2007 | 4 Pages |
The double μ3-OMe supported tetrameric Co4 complex [Co4(μ3-OMe)2(μ-bemp)2(N3)2(OH2)2](ClO4)2 · 4H2O {1 · (ClO4)2 · 4H2O} was isolated from the reaction of Co(ClO4)2 · 6H2O with H3bemp (where H3bemp = 2,6-bis-[(2-hydroxy-ethylimino)-methyl]-4-methyl-phenol) and NaN3 in presence of NEt3 in aqueous methanol. The X-ray structure analysis reveals a cationic tetrameric arrangement consisting of a defective dicubane-like core with two missing vertexes. The four Co(III) ions are connected through in situ generated μ3-OMe and central phenolate plus terminal ethanolate bridges of the ligand. Terminal aqua and azido coordinations finally fulfil the octahedral geometries around the CoIII ions within this Co4 aggregate.
Graphical abstractA novel [Co4II] cluster [Co4(N3)2(μ3-OMe)2(μ-bemp)2(OH2)2](ClO4)2 · 4H2O {1 · (ClO4)2 · 4H2O} is formed with help of solvent derived MeO− templates, in presence of N3- bridges, together with the parent fully deprotonated di-Schiff-base ligand bemp3−, featuring two fused defective cubanes. Central phenoxide and terminal alcoholate type bridges facilitate octahedral coordinations and aggregation of the Co4 cluster complex.Figure optionsDownload full-size imageDownload as PowerPoint slide
