Magnetic Investigation in Di- and Tetranuclear Lanthanide Complexes

2021 ◽  
Author(s):  
Jianfeng Wu ◽  
Dan Liu ◽  
Qianqian Yang ◽  
Yan Ge ◽  
Jinkui Tang ◽  
...  
Keyword(s):  
Single Molecule ◽  
Lanthanide Complexes ◽  
Hydrazone Ligand ◽  
Single Molecule Magnet ◽  
Magnetic Investigation

By using a crab-like hydrazone ligand, dinuclear and tetranuclear dysprosium based complexes Dy2 and Dy4 have been isolated. Magnetic investigation reveals that complex Dy2 shows typical single-molecule magnet behavior under...

A series of dinuclear lanthanide complexes derived from a hydroxyl-rich ligand: {Dy2} exhibiting single-molecule magnet behaviour

Polyhedron ◽  
2019 ◽  
Vol 159 ◽  
pp. 64-71 ◽  
Author(s):  
Yu Ge ◽  
Yanfeng Cui ◽  
Yuan Huang ◽  
Guoqing Wang ◽  
Wei Liu ◽  
...  
Keyword(s):  
Single Molecule ◽  
Lanthanide Complexes ◽  
Single Molecule Magnet

A new family of dinuclear lanthanide complexes exhibiting luminescence, magnetic entropy changes and single molecule magnet behaviors

CrystEngComm ◽  
2021 ◽  
Author(s):  
Lu Dong ◽  
Ying-Bing Lu ◽  
Shui-Dong Zhu ◽  
Jun-Wei Wu ◽  
Xin-Ting Zhang ◽  
...  
Keyword(s):  
Magnetocaloric Effect ◽  
Single Molecule ◽  
Lanthanide Complexes ◽  
Magnetic Entropy ◽  
Single Molecule Magnet ◽  
Entropy Changes ◽  
New Family

Four isomorphic and dinuclear lanthanide complexes were synthesized. Complexes EuIII and TbIII exhibit strong emissions, while GdIII shows the magnetocaloric effect and DyIII displays a single-molecule magnet.

scholarly journals Periodicity of Single‐Molecule Magnet Behaviour of Heterotetranuclear Lanthanide Complexes across the Lanthanide Series: A Compendium

2020 ◽  
Vol 26 (27) ◽  
pp. 6036-6049 ◽  
Author(s):  
David Chukwuma Izuogu ◽  
Takefumi Yoshida ◽  
Goulven Cosquer ◽  
Jonnie N. Asegbeloyin ◽  
Haitao Zhang ◽  
...  
Keyword(s):  
Single Molecule ◽  
Lanthanide Complexes ◽  
Single Molecule Magnet ◽  
Lanthanide Series

Tetranuclear lanthanide complexes showing magnetic refrigeration and single molecule magnet behavior

2019 ◽  
Vol 43 (21) ◽  
pp. 8067-8074 ◽  
Author(s):  
Hong Yu ◽  
Jia-Xing Yang ◽  
Ju-Qing Han ◽  
Peng-Fei Li ◽  
Yin-Ling Hou ◽  
...  
Keyword(s):  
Single Molecule ◽  
Lanthanide Complexes ◽  
Magnetic Refrigeration ◽  
Slow Relaxation ◽  
Single Molecule Magnet

Four tetranuclear lanthanide complexes were fabricated and characterized. 1 exhibits cryogenic magnetic refrigeration property and 3 displays slow relaxation of the magnetization.

Series of Isostructural Planar Lanthanide Complexes [LnIII4(μ3-OH)2(mdeaH)2(piv)8] with Single Molecule Magnet Behavior for the Dy4Analogue

2010 ◽  
Vol 49 (17) ◽  
pp. 8067-8072 ◽  
Author(s):  
Ghulam Abbas ◽  
Yanhua Lan ◽  
George E. Kostakis ◽  
Wolfgang Wernsdorfer ◽  
Christopher E. Anson ◽  
...  
Keyword(s):  
Single Molecule ◽  
Lanthanide Complexes ◽  
Single Molecule Magnet

scholarly journals Single-molecule magnet behavior in 2,2’-bipyrimidine-bridged dilanthanide complexes

2016 ◽  
Vol 7 ◽  
pp. 126-137 ◽  
Author(s):  
Wen Yu ◽  
Frank Schramm ◽  
Eufemio Moreno Pineda ◽  
Yanhua Lan ◽  
Olaf Fuhr ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Single Molecule ◽  
Energy Barrier ◽  
Lanthanide Complexes ◽  
Hysteresis Loops ◽  
Magnetic Behavior ◽  
Scanning Tunneling ◽  
Tunneling Microscopy ◽  
Single Molecule Magnet ◽  
Homogeneous Film

A series of 2,2’-bipyrimidine-bridged dinuclear lanthanide complexes with the general formula [Ln(tmhd)3]2bpm (tmhd = 2,2,6,6-tetramethyl-3,5-heptanedionate, bpm = 2,2’-bipyrimidine, Ln = Gd(III), 1; Tb(III), 2; Dy(III), 3; Ho(III), 4 and Er(III), 5) has been synthesized and characterized. Sublimation of [Tb(tmhd)3]2bpm onto a Au(111) surface leads to the formation of a homogeneous film with hexagonal pattern, which was studied by scanning tunneling microscopy (STM). The bulk magnetic properties of all complexes have been studied comprehensively. The dynamic magnetic behavior of the Dy(III) and Er(III) compounds clearly exhibits single molecule magnet (SMM) characteristics with an energy barrier of 97 and 25 K, respectively. Moreover, micro-SQUID measurements on single crystals confirm their SMM behavior with the presence of hysteresis loops.

scholarly journals Muffin-like lanthanide complexes with an N5O2-donor macrocyclic ligand showing field-induced single-molecule magnet behaviour

2016 ◽  
Vol 45 (38) ◽  
pp. 15114-15121 ◽  
Author(s):  
Peter Antal ◽  
Bohuslav Drahoš ◽  
Radovan Herchel ◽  
Zdeněk Trávníček
Keyword(s):  
General Formula ◽  
Single Molecule ◽  
Lanthanide Complexes ◽  
Macrocyclic Ligand ◽  
Single Molecule Magnet

Three mononuclear lanthanide complexes of a 2-pyridylmethyl pendant-armed 15-membered ligand {L} with general formula [Ln(L)(H2O)(NO3)](NO3)2 (Ln = Tb (1), Dy (2), and Er (3)) are reported.

scholarly journals Squaring the cube: a family of octametallic lanthanide complexes including a Dy8 single-molecule magnet

2013 ◽  
Vol 42 (41) ◽  
pp. 14693 ◽  
Author(s):  
Ming Fang ◽  
Hanhua Zhao ◽  
Andrey V. Prosvirin ◽  
Dawid Pinkowicz ◽  
Bin Zhao ◽  
...  
Keyword(s):  
Single Molecule ◽  
Lanthanide Complexes ◽  
Single Molecule Magnet

scholarly journals Field-Induced SMM and Vis/NIR Luminescence on Mononuclear Lanthanide Complexes with 9-Anthracenecarboxylate and 2,2′:6,2″-Terpyridine

2021 ◽  
Vol 7 (9) ◽  
pp. 124
Author(s):  
Berta Casanovas ◽  
Oriol Porcar ◽  
Saskia Speed ◽  
Ramon Vicente ◽  
Mercè Font-Bardía ◽  
...  
Keyword(s):  
Solid State ◽  
General Formula ◽  
Single Molecule ◽  
Lanthanide Complexes ◽  
Nitrate Hexahydrate ◽  
Mixed Solution ◽  
Single Molecule Magnet ◽  
Lanthanide Nitrate ◽  
Photoluminescence Studies ◽  
Nir Luminescence

Five new mononuclear lanthanide complexes are synthesized by adding the several lanthanide nitrate hexahydrate salts, which for lanthanide (Ln) are Eu, Tb, Dy, Er, and Yb, with 9-anthracenecarboxylic acid (9-Hanthc) and 2,2′:6,2″-terpyridine (TPY) in mixed solution of methanol and dimethylformamide (DMF). The general formula is [Eu(9-anthc)3(TPY)(DMF)]·H2O (1Eu) where Eu(III) is ennea-coordinated or [Ln(9-anthc)3(TPY)(H2O)]·H2O·DMF (Ln = Tb (2Tb), Dy (3Dy), Er (4Er), and Yb (5Yb)) where Ln(III) is octa-coordinated. For compounds 3Dy, 4Er, and 5Yb, the dynamic ac magnetic study indicated field-induced single molecule magnet (SMM) behavior. The photoluminescence studies in the solid state of these complexes show the sensitization of 4f-4f transitions for 4Er and 5Yb in the NIR region.

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