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Magnetic Behavior of Luminescent Dinuclear Dysprosium and Terbium Complexes Derived from Phenoxyacetic Acid and 2,2′-Bipyridine
| Content Provider | MDPI |
|---|---|
| Author | Mandal, Leena Biswas, Soumava Yamashita, Masahiro |
| Copyright Year | 2019 |
| Description | Two dinuclear lanthanide complexes [Dy2(L1)6(L2)2]·2EtOH (1) and [Tb2(L1)6(L2)2]·2EtOH (2) (HL1 = phenoxyacetic acid and L2 = 2,2′-bipyridine) were synthesized and the crystal structures were determined. In both complexes, the lanthanide centers are nine-coordinated and have a muffin geometry. Detailed magnetic study reveals the presence of field-induced single molecule magnet (SMM) behavior for complex 1, whereas complex 2 is non-SMM in nature. Further magnetic study with 1′, yttrium doped magnetically diluted sample of 1, disclosed the presence of Orbach and Raman relaxation processes with effective energy barrier, ∆E = 16.26 cm−1 and relaxation time, τo = 2.42 × 10−8 s. Luminescence spectra for complexes 1 and 2 in acetonitrile were studied which show characteristic emission peaks for DyIII and TbIII ions, respectively. |
| Starting Page | 56 |
| e-ISSN | 23127481 |
| DOI | 10.3390/magnetochemistry5040056 |
| Journal | Magnetochemistry |
| Issue Number | 4 |
| Volume Number | 5 |
| Language | English |
| Publisher | MDPI |
| Publisher Date | 2019-10-01 |
| Access Restriction | Open |
| Subject Keyword | Magnetochemistry Inorganic Chemistry Single Molecule Magnet Dysprosium Terbium Luminescence |
| Content Type | Text |
| Resource Type | Article |
