| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1338466 | Polyhedron | 2007 | 6 Pages |
The syntheses of two new polynuclear TbIII compounds are reported. A tetranuclear complex [Tb4(H2L)2(H4L)2(OAc)8] (1), with H4L = 2-((2-hydroxy-benzylidene)-amino)-2-hydroxy-methyl-propane-1,3-diol, has a butterfly-type structure, while [Tb(OAc)3MeOH]∞ (2) is a linear chain. A novel binding mode for H2L2− is observed in 1, with two alkoxides each bridging three TbIII ions. The magnetic properties of 1 are determined by the superposition of the ligand field split 7F6 states of TbIII single-ions located on two crystallographically distinct sites. Weak antiferromagnetic exchange interactions possibly contribute to the lowering of the magnetic moment at the lowest temperatures.
Graphical abstractThe syntheses of a tetranuclear terbium complex incorporating the ligand 2-((2-hydroxy-benzylidene)-amino)-2-hydroxy-methyl-propane-1,3-diol and of a linear terbium chain are reported. The magnetic properties of the tetranuclear complex were investigated by variable temperature magnetic susceptibility and magnetization measurements.Figure optionsDownload full-size imageDownload as PowerPoint slide
