An S = 3 cyanide-bridged tetranuclear FeIII2NiII2 square that exhibits slow relaxation of magnetization: synthesis, structure and magnetic properties

2010 ◽  
Vol 39 (23) ◽  
pp. 5500 ◽  
Author(s):  
Dayu Wu ◽  
Yanjuan Zhang ◽  
Wei Huang ◽  
Osamu Sato
Keyword(s):  
Magnetic Properties ◽  
Slow Relaxation

scholarly journals Slow Relaxation of the Magnetization in Bis-Decorated Chiral Helicene-Based Coordination Complexes of Lanthanides

2018 ◽  
Vol 4 (3) ◽  
pp. 39 ◽  
Author(s):  
Jessica Flores Gonzalez ◽  
Vincent Montigaud ◽  
Nidal Saleh ◽  
Olivier Cador ◽  
Jeanne Crassous ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Ab Initio Calculations ◽  
Ab Initio ◽  
Single Molecule ◽  
Crystalline Phase ◽  
Coordination Complexes ◽  
Slow Relaxation ◽  
Single Molecule Magnets ◽  
Racemic Form

The complexes [Ln2(hfac)6(L)]·nC6H14 (Ln = Dy (1) n = 0, Yb (2) n = 1) with the L chiral 3,14-di-(2-pyridyl)-4,13-diaza[6]helicene ligand (hfac− = 1,1,1,5,5,5-hexafluoroacetylacetonate) have been synthesized in their racemic form and structurally and magnetically characterized. Both complexes behave as field-induced single molecule magnets in the crystalline phase. These magnetic properties were rationalized by ab initio calculations.

scholarly journals Field-Induced Slow Relaxation in a Dinuclear Dysprosium(III) Complex Based on 3-Methoxycinnamic Acid

Inorganics ◽  
2018 ◽  
Vol 6 (1) ◽  
pp. 35 ◽  
Author(s):  
Ouafa Khalfaoui ◽  
Adel Beghidja ◽  
Jérôme Long ◽  
Chahrazed Beghidja ◽  
Yannick Guari ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Structural Organization ◽  
Slow Relaxation ◽  
Spin Lattice ◽  
Methoxycinnamic Acid

We report the synthesis, structure, and magnetic properties of a new dinuclear dysprosium(III) complex based on a 3-methoxycinnamate ligand. The centrosymmetric complex exhibits a field-induced SMM behavior. In contrast to the previously reported lanthanide-based systems with cinnamate derivatives that relax through a combination of Raman and direct processes, an Orbach process is also involved in highlighting the role of the structural organization over the spin-lattice relaxations.

Isostructural lanthanide-based metal–organic frameworks: structure, photoluminescence and magnetic properties

2018 ◽  
Vol 47 (3) ◽  
pp. 925-934 ◽  
Author(s):  
Li-Lin Luo ◽  
Xiang-Long Qu ◽  
Zheng Li ◽  
Xia Li ◽  
Hao-Ling Sun
Keyword(s):  
Magnetic Properties ◽  
Single Molecule ◽  
Metal Organic Frameworks ◽  
Magnetic Behavior ◽  
Slow Relaxation ◽  
Luminescence Properties ◽  
Metal Organic ◽  
The Eu

Highly stable 3D Ln-MOFs were constructed. The Eu-MOF shows good luminescence properties while the Dy-MOF shows a typical single-molecule magnetic behavior with a slow relaxation of magnetization.

Structural and magnetic properties of some lanthanide (Ln = Eu(iii), Gd(iii) and Nd(iii)) cyanoacetate polymers: field-induced slow magnetic relaxation in the Gd and Nd substitutions

2014 ◽  
Vol 43 (32) ◽  
pp. 12342-12356 ◽  
Author(s):  
A. Arauzo ◽  
A. Lazarescu ◽  
S. Shova ◽  
E. Bartolomé ◽  
R. Cases ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Magnetic Relaxation ◽  
Slow Relaxation ◽  
Slow Magnetic Relaxation ◽  
Structural And Magnetic Properties

The cyanoacetate complexes, {[Ln2(CNCH2COO)6(H2O)4]·2H2O}n, with Ln = Gd, Nd, show field-induced slow relaxation: resonant phonon trapping and Orbach process for Gd, and Orbach and direct processes for Nd.

A triple-bridged azido-Cu(ii) chain compound fine-tuned by mixed carboxylate/ethanol linkers displays slow-relaxation and ferromagnetic order: synthesis, crystal structure, magnetic properties and DFT calculations

2014 ◽  
Vol 43 (41) ◽  
pp. 15359-15366 ◽  
Author(s):  
Xiangyu Liu ◽  
Sanping Chen ◽  
Thais Grancha ◽  
Emilio Pardo ◽  
Hongshan Ke ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Magnetic Properties ◽  
Dft Calculations ◽  
Slow Relaxation ◽  
Ferromagnetic Order ◽  
Chain Compound

A triple-bridged azido-Cu(ii) compound has been synthesized and magnetically characterized.

scholarly journals Synthesis, structure and magnetic properties of a series of Ln(iii) complexes with radical-anionic iminopyridine ligands: effect of lanthanide ions on the slow relaxation of the magnetization

2019 ◽  
Vol 48 (32) ◽  
pp. 12018-12022 ◽  
Author(s):  
Jérôme Long ◽  
Grigorii G. Skvortsov ◽  
Anton V. Cherkasov ◽  
Konstantin A. Lyssenko ◽  
Andrei I. Poddel'sky ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Lanthanide Ions ◽  
Slow Relaxation ◽  
Dysprosium Complex

Slow relaxation of the magnetization in radical iminopyridine dysprosium complex.

Excited-state effects on magnetic properties of U(iii) and U(iv) pyrazolylborate complexes

2019 ◽  
Vol 55 (71) ◽  
pp. 10611-10614
Author(s):  
Robert F. Higgins ◽  
Caleb J. Tatebe ◽  
Suzanne C. Bart ◽  
Matthew P. Shores
Keyword(s):  
Magnetic Properties ◽  
Excited State ◽  
Slow Relaxation ◽  
State Mixing

For a family of uranium pyrazolylborate complexes, we observe correlations between excited-state mixing and slow relaxation of magnetization for U(iii) complexes, and U⋯B distances in U(iv) complexes.

Syntheses, structures and magnetic properties of symmetrical Schiff-base supported dinuclear Ln(iii) compounds

RSC Advances ◽  
2016 ◽  
Vol 6 (105) ◽  
pp. 103035-103041 ◽  
Author(s):  
Shuang-Yan Lin ◽  
Chunlai Wang ◽  
Zhikun Xu
Keyword(s):  
Magnetic Properties ◽  
Schiff Base ◽  
Slow Relaxation ◽  
Relaxation Phenomenon

Two dinuclear Dy(iii) compounds bridged by respective syn–syn η1:η1-µ2-benzoato and µ2-O alkoxido groups have been synthesized by symmetrical two-arm and four-arm ligands, respectively, which show field-induced slow relaxation phenomenon.

Cinnamic acid derivative rare-earth dinuclear complexes and one-dimensional architectures: synthesis, characterization and magnetic properties

2017 ◽  
Vol 46 (12) ◽  
pp. 3943-3952 ◽  
Author(s):  
Ouafa Khalfaoui ◽  
Adel Beghidja ◽  
Jérôme Long ◽  
Ahlem Boussadia ◽  
Chahrazed Beghidja ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Rare Earth ◽  
Acid Derivative ◽  
Cinnamic Acid ◽  
Slow Relaxation ◽  
Dinuclear Complexes ◽  
Cinnamic Acid Derivative ◽  
One Dimensional ◽  
Derivatives Of

Discrete and extended architectures based on two derivatives of cinnamic acid show slow relaxation of the magnetisation.

scholarly journals New Cyanido-Bridged Heterometallic 3d-4f 1D Coordination Polymers: Synthesis, Crystal Structures and Magnetic Properties

2021 ◽  
Vol 7 (5) ◽  
pp. 57
Author(s):  
Diana Dragancea ◽  
Ghenadie Novitchi ◽  
Augustin M. Mădălan ◽  
Marius Andruh
Keyword(s):  
Magnetic Properties ◽  
Crystal Structures ◽  
Coordination Polymers ◽  
Building Block ◽  
Condensation Reaction ◽  
Slow Relaxation ◽  
Block Approach

Three new 1D cyanido-bridged 3d-4f coordination polymers, {[Gd(L)(H2O)2Fe(CN)6]·H2O}n (1GdFe), {[Dy(L)(H2O)2Fe(CN)6]·3H2O}n (2DyFe), and {[Dy(L)(H2O)2Co(CN)6]·H2O}n (3DyCo), were assembled following the building-block approach (L = pentadentate bis-semicarbazone ligand resulting from the condensation reaction between 2,6-diacetyl-pyridine and semicarbazide). The crystal structures consist of crenel-like LnIII-MIII alternate chains, with the LnIII ions connected by the hexacyanido metalloligands through two cis cyanido groups. The magnetic properties of the three complexes have been investigated. Field-induced slow relaxation of the magnetization was observed for compounds 2DyFe and 3DyCo. Compound 3DyCo is a new example of chain of Single Ion Magnets.

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