Regulating Spin Dynamics of Nitronyl Nitroxide Biradical Lanthanide Complexes through Introducing Different Transition Metals

2021 ◽  
Vol 16 (7) ◽  
pp. 793-800
Author(s):  
Pei Jing ◽  
Lu Xi ◽  
Jiao Lu ◽  
Jing Han ◽  
Xiaohui Huang ◽  
...  
Keyword(s):  
Transition Metals ◽  
Lanthanide Complexes ◽  
Spin Dynamics ◽  
Nitronyl Nitroxide

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.

Syntheses, structures and magnetic properties of the lanthanide complexes of the pyrimidyl-substituted nitronyl nitroxide radical

2017 ◽  
Vol 46 (31) ◽  
pp. 10452-10461 ◽  
Author(s):  
Jian Wang ◽  
Hao Miao ◽  
Zhao-Xin Xiao ◽  
Yan Zhou ◽  
Lin-Dan Deng ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Lanthanide Complexes ◽  
Nitroxide Radical ◽  
Nitronyl Nitroxide ◽  
Nitronyl Nitroxide Radical

A series of lanthanide complexes of the pyrimidyl-substituted nitronyl nitroxide radical have been synthesized and characterized structurally and magnetically.

Ligand-Centered Near-Infrared Luminescence from Lanthanide Complexes with Chelating Nitronyl Nitroxide Free Radicals

2000 ◽  
Vol 39 (17) ◽  
pp. 3740-3741 ◽  
Author(s):  
Christophe Lescop ◽  
Dominique Luneau ◽  
Guillaume Bussière ◽  
Myriam Triest ◽  
Christian Reber
Keyword(s):  
Free Radicals ◽  
Lanthanide Complexes ◽  
Near Infrared ◽  
Nitronyl Nitroxide ◽  
Infrared Luminescence

A family of lanthanide complexes with a bis-tridentate nitronyl nitroxide radical: syntheses, structures and magnetic properties

2019 ◽  
Vol 48 (27) ◽  
pp. 10337-10345 ◽  
Author(s):  
Hao Miao ◽  
Hong-Qing Li ◽  
Fu-Xing Shen ◽  
Hai-Yan Wei ◽  
Bao-Lin Wang ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Lanthanide Complexes ◽  
Nitroxide Radical ◽  
Nitronyl Nitroxide ◽  
Nitronyl Nitroxide Radical

A family of 2p–4f LnIII–radical complexes and 4f–2p–4f LnIII–radical–LnIII complexes were synthesized and characterized structurally and magnetically.

Syntheses, structures, magnetic and thermodynamics properties of tri-spin lanthanide complexes of nitronyl nitroxide

2015 ◽  
Vol 430 ◽  
pp. 1-7 ◽  
Author(s):  
Mei-Ying Song ◽  
Long-Mei Wen ◽  
Shu-Ping Wang ◽  
Shu-Tao Yang ◽  
Jian-Jun Zhang ◽  
...  
Keyword(s):  
Lanthanide Complexes ◽  
Nitronyl Nitroxide ◽  
Thermodynamics Properties
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