6533b861fe1ef96bd12c42c5
RESEARCH PRODUCT
Slow Magnetization Relaxation in a 1-D Double-Chain Coordination Polymer Composed of {Dy<sup>III</sup> <sub>4</sub>} Repeating Units
Chaoran LiWolfgang WernsdorferTheocharis C. StamatatosDimitris AlexandropoulosGeorge ChristouCatherine P. RaptopoulouVassilis Psycharissubject
Materials scienceHydrogen bondCoordination polymerRelaxation (NMR)General EngineeringStackingCrystal structureNanomagnetHysteresisCrystallographyMagnetizationchemistry.chemical_compoundNuclear magnetic resonancechemistryGeneral Earth and Planetary SciencesGeneral Environmental Sciencedescription
The "unsuccessful" synthesis of the non-commercially available 'Dy(O2CPh)3' precursor from the stoichiomet- ric reaction of Dy(NO3)3·5H2O with 3 equivalents of NaO2CPh in MeCN/H2O has led instead to the "successful" isolation and structural characterization of the 1-D coordination polymer (Dy4(O2CPh)12(H2O)8)n·2n(PhCO2H)·n(MeCN) (1·2n(PhCO2H)·n(MeCN)) in excellent yields (~90%). The one-dimensional double-chain structure of 1 was resulted from the linkage of two parallel chains by syn,anti-� 1 :� 1 :μ PhCO2 - groups. The lattice structure of 1 is further extended to a 2-D network through hydrogen bonding and - stacking interactions. The observation of out-of-phase (� �� M) ac susceptibility signals suggested that 1 might be a molecular nanomagnet, and this was confirmed by single-crystal magnetization vs. dc field sweeps that exhibited hysteresis, the diagnostic property of a magnet.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2013-08-01 | Current Inorganic Chemistry |