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Three new mononuclear tri-spin lanthanide-nitronyl nitroxide radical compounds: syntheses, structures and magnetic properties.
| Content Provider | Semantic Scholar |
|---|---|
| Author | Li, Lei-Lei Liu, Shuguang Zhang, Yuan Cheng, Peng |
| Copyright Year | 2015 |
| Abstract | Based on the nitronyl nitroxide radical, 2-(4-(methoxycarbonyl)phenyl)-4,4,5,5-tetramethylimidazolin-1-oxyl-3-oxide (1, NITPhCOOMe), and three mononuclear tri-spin compounds [Ln(hfac)3(NITPhCOOMe)2] (Ln = Gd (2), Tb (3), Dy (4); hfac = hexafluoroacetylacetonate) are successfully synthesized and fully characterized. Compounds 2 and 4 are isostructural and crystallize in the C2/c space group, while compound 3 crystallizes in the P2₁/c space group. For compounds 2-4, the central metal ions are all eight-coordinate in distorted triangular dodecahedral LnO8 coordination geometry (D(2d) symmetry) completed by three bischelate hfac(-) ligands and two monodentate radicals. Magnetic studies show that radical 1 undertakes the transition from the paramagnetic state to 3D antiferromagnetic ordering at 4.2 K. In addition, compound 3 exhibits field-induced single-molecule magnet (SMM) behavior. |
| File Format | PDF HTM / HTML |
| DOI | 10.1039/c4dt03941f |
| PubMed reference number | 25730400 |
| Journal | Medline |
| Volume Number | 44 |
| Issue Number | 13 |
| Alternate Webpage(s) | http://www.rsc.org/suppdata/dt/c4/c4dt03941f/c4dt03941f1.pdf |
| Journal | Dalton transactions |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
