Slow Magnetic Relaxation at Zero Field in the Tetrahedral Complex [Co(SPh)4]2–

2011 ◽  
Vol 133 (51) ◽  
pp. 20732-20734 ◽  
Author(s):  
Joseph M. Zadrozny ◽  
Jeffrey R. Long
Keyword(s):  
Magnetic Relaxation ◽  
Zero Field ◽  
Tetrahedral Complex ◽  
Slow Magnetic Relaxation

Correlating the axial Zero Field Splitting with the slow magnetic relaxation in GdIII SIMs

2021 ◽  
Author(s):  
Júlia Mayans ◽  
Albert Escuer
Keyword(s):  
Magnetic Relaxation ◽  
Zero Field ◽  
Zero Field Splitting ◽  
Field Splitting ◽  
Slow Magnetic Relaxation

A possible relation between the value of the axial Zero Field Splitting and the occurrence of field-induced slow magnetic relaxation has been established for a new gadolinium(iii) compound.

scholarly journals Nitronyl Nitroxide Biradical-Based Binuclear Lanthanide Complexes: Structure and Magnetic Properties

2020 ◽  
Vol 6 (4) ◽  
pp. 48
Author(s):  
Lu Xi ◽  
Jing Han ◽  
Xiaohui Huang ◽  
Licun Li
Keyword(s):  
Magnetic Properties ◽  
Magnetic Relaxation ◽  
Lanthanide Complexes ◽  
Magnetic Data ◽  
Antiferromagnetic Coupling ◽  
Zero Field ◽  
Nitronyl Nitroxide ◽  
Ferromagnetic Exchange ◽  
Binuclear Structure ◽  
Slow Magnetic Relaxation

Employing a new nitronyl nitroxide biradical NITPhPzbis(NITPhPzbis = 5-(1-pyrazolyl)-1,3-bis(1’-oxyl-3’-oxido-4’,4’,5’,5’-tetramethyl-4,5-hydro-1H-imidazol-2-yl)benzene), a series of 2p-4f complexes [Ln2(hfac)6(H2O)(NITPhPzbis)] (LnIII = Gd1, Tb2, Dy3; hfac = hexafluoroacetylacetonate) were successfully synthesized. In complexes 1–3, the designed biradical NITPhPzbis coordinates with two LnIII ions in chelating and bridging modes to form a four-spin binuclear structure. Direct-current magnetic study of Gd analogue indicates that ferromagnetic exchange exists between the Gd ion and the radical while antiferromagnetic coupling dominates between two mono-radicals. Dynamic magnetic data show that the χ” signals of complex 3 exhibit frequency dependence under zero field, demonstrating slow magnetic relaxation behavior in complex 3. And the estimated values of Ueff and τ0 are about 8.4 K and 9.1 × 10−8 s, respectively.

Zero-field slow magnetic relaxation in a uranium(iii) complex with a radical ligand

2014 ◽  
Vol 50 (71) ◽  
pp. 10262-10264 ◽  
Author(s):  
Joana T. Coutinho ◽  
Maria A. Antunes ◽  
Laura C. J. Pereira ◽  
Joaquim Marçalo ◽  
Manuel Almeida
Keyword(s):  
Single Molecule ◽  
Magnetic Relaxation ◽  
Zero Field ◽  
Single Molecule Magnet ◽  
Slow Magnetic Relaxation ◽  
Bipyridine Ligand ◽  
Radical Ligand

Single-molecule-magnet behaviour in [U(TpMe2)2(bipy˙)], a U(iii) complex with a radical bipyridine ligand, having magnetic contributions from both the metal and the ligand.

Hydrogen-bonding interactions and magnetic relaxation dynamics in tetracoordinated cobalt(ii) single-ion magnets

2019 ◽  
Vol 48 (2) ◽  
pp. 395-399 ◽  
Author(s):  
Ryoji Mitsuhashi ◽  
Satoshi Hosoya ◽  
Takayoshi Suzuki ◽  
Yukinari Sunatsuki ◽  
Hiroshi Sakiyama ◽  
...  
Keyword(s):  
Hydrogen Bonding ◽  
Magnetic Relaxation ◽  
Zero Field ◽  
Relaxation Dynamics ◽  
Hydrogen Bonding Interactions ◽  
Slow Magnetic Relaxation ◽  
Hydrogen Bonded

Zero field slow magnetic relaxation was observed in two cobalt(ii) complexes with 1-D chain hydrogen-bonded structures.

scholarly journals Effects of coordination sphere on unusually large zero field splitting and slow magnetic relaxation in trigonally symmetric molecules

2018 ◽  
Vol 9 (48) ◽  
pp. 9018-9026 ◽  
Author(s):  
Kelsey A. Schulte ◽  
Kuduva R. Vignesh ◽  
Kim R. Dunbar
Keyword(s):  
Water Molecule ◽  
Coordination Sphere ◽  
Magnetic Relaxation ◽  
Magnetic Behavior ◽  
Zero Field ◽  
Zero Field Splitting ◽  
Field Splitting ◽  
Slow Magnetic Relaxation

Coordination of a water molecule results in drastic effects on the magnetic behavior of a series of trigonal monopyramidal and bipyramidal compounds.

Slow magnetic relaxation in Dy2 and Dy4 complexes of a versatile, trifunctional polydentate N,O-ligand

2019 ◽  
Vol 48 (38) ◽  
pp. 14269-14278 ◽  
Author(s):  
Muhammad U. Anwar ◽  
Ahmed Al-Harrasi ◽  
Jeremy M. Rawson ◽  
Emma L. Gavey ◽  
Jeffery Regier ◽  
...  
Keyword(s):  
Magnetic Relaxation ◽  
Slow Relaxation ◽  
Zero Field ◽  
Slow Magnetic Relaxation

A binuclear DyIII complex exhibits slow relaxation of magnetization under an applied dc field, while its tetranuclear counterpart exhibits “true” zero-field SMM behaviour.

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