Synthesis, luminescent and magnetic properties of new tetranuclear lanthanide complexes with 4-hydroxy-2,1,3-benzothiadiazolate and dibenzoylmethanide ligands

Polyhedron ◽  
2017 ◽  
Vol 124 ◽  
pp. 139-144 ◽  
Author(s):  
T.S. Sukhikh ◽  
D.A. Bashirov ◽  
D.S. Kolybalov ◽  
A.Y. Andreeva ◽  
A.I. Smolentsev ◽  
...  
2020 ◽  
Vol 6 (4) ◽  
pp. 48
Author(s):  
Lu Xi ◽  
Jing Han ◽  
Xiaohui Huang ◽  
Licun Li

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.


2018 ◽  
Vol 24 (20) ◽  
pp. 5319-5330 ◽  
Author(s):  
Peter Comba ◽  
Lena J. Daumann ◽  
Rüdiger Klingeler ◽  
Changhyun Koo ◽  
Mark J. Riley ◽  
...  

2020 ◽  
Vol 7 (5) ◽  
pp. 1229-1238 ◽  
Author(s):  
Xiang-Wen Liu ◽  
Zhuo Wu ◽  
Ji-Tun Chen ◽  
Li Li ◽  
Peng Chen ◽  
...  

Series of Dy2 SMMs displayed the nearly maximum tenfold increase in energy barrier and the hysteresis temperature increased from zero to 2.5 K using the electronic and spatial effect on substituent of the bridging ligand and co-ligands.


RSC Advances ◽  
2020 ◽  
Vol 10 (14) ◽  
pp. 8539-8539
Author(s):  
Rong-fang Li ◽  
Rui-hao Li ◽  
Xin-fang Liu ◽  
Xin-hong Chang ◽  
Xun Feng

Correction for ‘Lanthanide complexes based on a conjugated pyridine carboxylate ligand: structures, luminescence and magnetic properties’ by Rong-fang Li et al., RSC Adv., 2020, 10, 6192–6199.


Sign in / Sign up

Export Citation Format

Share Document