Reversible structural transformation induced switchable single-molecule magnet behavior in lanthanide metal–organic frameworks

2018 ◽  
Vol 54 (72) ◽  
pp. 10183-10186 ◽  
Author(s):  
Mengmeng Wang ◽  
Xixi Meng ◽  
Fen Song ◽  
Yanfei He ◽  
Wei Shi ◽  
...  
Keyword(s):  
Structural Transformation ◽  
Single Molecule ◽  
Metal Organic Frameworks ◽  
Single Molecule Magnet ◽  
Metal Organic ◽  
Lanthanide Metal ◽  
Reversible Structural Transformation

The structural transformation between Ln-MOFs 1 and 2 and the corresponding switchable “on/off” single-molecule magnet behavior have been studied.

Dynamic metal–organic frameworks for the separation of hydrogen isotopes

2020 ◽  
Vol 49 (46) ◽  
pp. 16617-16622
Author(s):  
Zhanfeng Ju ◽  
El-Sayed M. El-Sayed ◽  
Daqiang Yuan
Keyword(s):  
Structural Transformation ◽  
Hydrogen Isotope ◽  
Isotope Separation ◽  
Metal Organic Frameworks ◽  
Hydrogen Isotopes ◽  
Gate Opening ◽  
Metal Organic ◽  
Reversible Structural Transformation ◽  
Or Gate

Reversible structural transformation along with breathing effect or gate-opening phenomena in some dynamic MOFs provide opportunity to operate or to enhance kinetic quantum sieving (KQS) for hydrogen isotope separation.

A series of lanthanide(iii) metal–organic frameworks derived from a pyridyl-dicarboxylate ligand: single-molecule magnet behaviour and luminescence properties

2020 ◽  
Vol 49 (40) ◽  
pp. 14123-14132
Author(s):  
Chengcheng Zhang ◽  
Xiufang Ma ◽  
Peipei Cen ◽  
Xiaoyong Jin ◽  
Jinhui Yang ◽  
...  
Keyword(s):  
Single Molecule ◽  
Metal Organic Frameworks ◽  
Luminescence Properties ◽  
Zero Field ◽  
Single Molecule Magnet ◽  
Metal Organic ◽  
Dicarboxylate Ligand

The zero-field single-molecule magnet behaviour and luminescence properties of 3D Ln-MOFs with a versatile pyridyl-decorated dicarboxylate.

scholarly journals Reversible Switching of Single-Molecule Magnetic Behaviour by Desorption/Adsorption of Solvent Ligand in a New Dy(III)-Based Metal Organic Framework

2021 ◽  
Vol 9 ◽  
Author(s):  
Xiao-Jiao Song ◽  
Zhao-Bo Hu ◽  
Miao-Miao Li ◽  
Xin Feng ◽  
Ming Kong ◽  
...  
Keyword(s):  
Single Molecule ◽  
Applied Field ◽  
Metal Organic Framework ◽  
Metal Organic Frameworks ◽  
Magnetic Behaviour ◽  
Zero Field ◽  
Single Molecule Magnet ◽  
Slow Magnetic Relaxation ◽  
Metal Organic ◽  
Solvent Molecules

Two metal-organic frameworks (MOFs), [Dy(BDC)(NO3)(DMF)2]n (1, H2BDC = terephthalic acid) and [Dy(BDC)(NO3)]n (1a), were synthesized. The structures of MOFs 1 and 1a are easy to be reversibly transformed into each other by the desorption or adsorption of coordination solvent molecules. Accordingly, their magnetic properties can also be changed reversibly, which realizes our goals of manipulating on/off single-molecule magnet behaviour. MOF 1 behaves as a single-molecule magnet either with or without DC field. Contrarily, no slow magnetic relaxation was observed in 1a both under zero field and applied field.

Controlling the magnetic properties of dysprosium metallofullerene within metal–organic frameworks

2016 ◽  
Vol 45 (48) ◽  
pp. 19226-19229 ◽  
Author(s):  
Yongjian Li ◽  
Taishan Wang ◽  
Haibing Meng ◽  
Chong Zhao ◽  
Mingzhe Nie ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Single Molecule ◽  
Quantum Tunneling ◽  
Metal Organic Frameworks ◽  
Single Molecule Magnet ◽  
Metal Organic

The hysteresis and quantum tunneling of magnetism for a metallofullerene DySc2N@C80 single-molecule magnet were modulated through trapping in MOF-177.

scholarly journals Electronic, Structural and Functional Versatility in Tetrathiafulvalene-Lanthanide Metal-Organic Frameworks

2019 ◽  
Author(s):  
Javier Castella-Gil ◽  
Samuel Mañas-Valero ◽  
Iñigo J. Vitórica-Yrezábal ◽  
Duarte Ananias ◽  
João Rocha ◽  
...  
Keyword(s):  
Single Molecule ◽  
Near Infrared ◽  
Metal Organic Frameworks ◽  
Magnetic Behaviour ◽  
Redox Activity ◽  
New Family ◽  
Semiconducting Properties ◽  
Metal Organic ◽  
Lanthanide Metal ◽  
Functional Versatility

<div>Tetrathiafulvalene-Lanthanide (TTF-Ln) Metal-Organic Frameworks (MOFs) are an interesting class of multifunctional materials in which porosity can be combined with electronic properties such as electrical conductivity, redox activity, luminescence and magnetism. Herein we report a new family of isostructural TTF-Ln MOFs, denoted as <b>MUV-5(Ln)</b> (Ln = Gd, Tb, Dy, Ho, Er), exhibiting semiconducting properties as a consequence of the short intermolecular S···S contacts established along the chain direction between partially oxidised TTF moieties. In addition, this family shows photoluminescence properties and single-molecule magnetic behaviour, finding near-infrared (NIR) photoluminescence in the Yb/Er derivative and slow relaxation of the magnetisation in the Dy and Er derivatives. As such properties are dependent on the electronic structure of the lanthanide ion, we emphasise the immense structural, electronic and functional versatility of this class of materials.</div>

scholarly journals Electronic, Structural and Functional Versatility in Tetrathiafulvalene-Lanthanide Metal-Organic Frameworks

2019 ◽  
Author(s):  
Javier Castella-Gil ◽  
Samuel Mañas-Valero ◽  
Iñigo J. Vitórica-Yrezábal ◽  
Duarte Ananias ◽  
João Rocha ◽  
...  
Keyword(s):  
Single Molecule ◽  
Near Infrared ◽  
Metal Organic Frameworks ◽  
Magnetic Behaviour ◽  
Redox Activity ◽  
New Family ◽  
Semiconducting Properties ◽  
Metal Organic ◽  
Lanthanide Metal ◽  
Functional Versatility

<div>Tetrathiafulvalene-Lanthanide (TTF-Ln) Metal-Organic Frameworks (MOFs) are an interesting class of multifunctional materials in which porosity can be combined with electronic properties such as electrical conductivity, redox activity, luminescence and magnetism. Herein we report a new family of isostructural TTF-Ln MOFs, denoted as <b>MUV-5(Ln)</b> (Ln = Gd, Tb, Dy, Ho, Er), exhibiting semiconducting properties as a consequence of the short intermolecular S···S contacts established along the chain direction between partially oxidised TTF moieties. In addition, this family shows photoluminescence properties and single-molecule magnetic behaviour, finding near-infrared (NIR) photoluminescence in the Yb/Er derivative and slow relaxation of the magnetisation in the Dy and Er derivatives. As such properties are dependent on the electronic structure of the lanthanide ion, we emphasise the immense structural, electronic and functional versatility of this class of materials.</div>

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