Download Lanthanide Single Molecule Magnets by Jinkui Tang, Peng Zhang PDF

By Jinkui Tang, Peng Zhang

This ebook starts off through offering simple details on single-molecule magnets (SMMs), overlaying the magnetism of lanthanide, the characterization and rest dynamics of SMMs and complicated technique of learning lanthanide SMMs. It then systematically introduces lanthanide SMMs starting from mononuclear and dinuclear to polynuclear complexes, classifying them and highlighting these SMMs with excessive barrier and blockading temperatures – an procedure that gives a few very worthwhile symptoms for the structural positive factors had to optimize the contribution of an Ising sort spin to a molecular magnet. the ultimate bankruptcy provides a number of the most recent advancements within the lanthanide SMM box, equivalent to the layout of multifunctional and stimuli-responsive magnetic fabrics in addition to the anchoring and association of the SMMs on surfaces. moreover, the crystal constitution and magnetic info are essentially provided with a wealth of illustrations in each one bankruptcy, assisting newbies and specialists alike to higher seize ongoing traits and discover new directions.

Jinkui Tang is a professor at Changchun Institute of utilized Chemistry, chinese language Academy of Sciences.

Peng Zhang is presently pursuing his PhD at Changchun Institute of utilized Chemistry, chinese language Academy of Sciences, with a particular concentrate on the molecular magnetism of lanthanide compounds lower than the supervision of Prof. Jinkui Tang.

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22) The geometric construction of two vectors χ1 and χ2 by using parallelogram law for addition gives χac, and conversely, χac can be resolved into its components χ1 and χ2. 15. Such analysis reveals that the shape of the Cole–Cole plots for overall process is mainly determined by the different relaxation time of each process. We define ρ as ρ = τ2/τ1, such that ρ = 1 corresponds to the single-relaxation process. 16 shows χ ′′ versus χ ′ curves for ρ = 2, 5, 10, 20, 100, and 1000. For the sake of simplicity, αi and χSi are taken equal to zero.

22. The complex crystallizes in the triclinic space group with only one Dy ion located in a distorted square-antiprismatic environment. 21 Experimental (pink) and calculated (blue) magnetization easy axis at T = 2 K for the series viewed perpendicular (top) and parallel (bottom) to the pseudo-fourfold symmetry axis of the molecules. Reproduced from Ref. [92] with permission from John Wiley & Sons Ltd. 22 The crystal structure of [DyIII(hfac)3-(NIT-R)2] (left, the yellow rod represents the orientation of the experimental easy axis of the magnetization, while the blue rod represents the calculated one); angular dependence of the magnetic susceptibility of [DyIII(hfac)3-(NIT-R)2] (right).

In addition, the exchange interactions between metal sites in polynuclear lanthanide complexes can be calculated within the Lines model using the routine POLY_ ANISO program [45, 103]. It is noteworthy that here the pure exchange (Jexch) and dipolar (Jdip) contributions to magnetic interactions are able to be given by the ­program. Traditionally, it is difficult to separate exchange coupling contributions from ligand field/Zeeman level thermal depopulation effects in orbitally degenerate lanthanide systems, and thus, Chibotaru has pioneered these developments.

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