Solvent-Free Synthesis of a Pillared Three-Dimensional Coordination Polymer with Magnetic Ordering

2015 ◽  
Vol 54 (21) ◽  
pp. 10490-10496 ◽  
Author(s):  
Javier López-Cabrelles ◽  
Mónica Giménez-Marqués ◽  
Guillermo Mínguez Espallargas ◽  
Eugenio Coronado
Keyword(s):  
Coordination Polymer ◽  
Three Dimensional ◽  
Magnetic Ordering ◽  
Solvent Free ◽  
Solvent Free Synthesis

scholarly journals An Uneven Chain-like Ferromagnetic Copper(II) Coordination Polymer Displaying Metamagnetic Behavior and Long-Range Magnetic Ordering

2021 ◽  
Vol 8 (1) ◽  
pp. 2
Author(s):  
Cai-Ming Liu ◽  
You Song
Keyword(s):  
Molecular Structure ◽  
Coordination Polymer ◽  
Hydrogen Bonds ◽  
Long Range ◽  
Three Dimensional ◽  
Magnetic Ordering ◽  
Antiferromagnetic Interaction ◽  
Ferromagnetic Coupling ◽  
One Dimensional ◽  
1D Chain

Ferromagnetic coupling exists in an uneven chain-like copper(II) complex with both end-on azido and syn-syn carboxylato bridges, (Cu3(L)2(N3)4(H2O)3)n (1, HL = 6-hydroxynicotinic acid). It is the first example of one-dimensional (1D) chain-like copper(II) coordination polymer showing both metamagnetic behavior and long-range magnetic ordering (Tc = 6.7 K), thanks to the interchain hydrogen bonds, which make a three-dimensional (3D) supramolecular array of the entire molecular structure and mediate the interchain antiferromagnetic interaction.

scholarly journals How to Make a Better Magnet? Insertion of Additional Bridging Ligands into a Magnetic Coordination Polymer

2018 ◽  
Vol 4 (3) ◽  
pp. 41
Author(s):  
Gabriela Handzlik ◽  
Dawid Pinkowicz
Keyword(s):  
Coordination Polymer ◽  
Self Assembly ◽  
Magnetic Hysteresis ◽  
Three Dimensional ◽  
Magnetic Ordering ◽  
Magnetic Interaction ◽  
Magnetic Hysteresis Loop ◽  
Water Molecules ◽  
Crystallization Water ◽  
Bridging Ligands

A three-dimensional cyanide-bridged coordination polymer based on FeII (S = 2) and NbIV (S = 1/2) {[FeII(H2O)2]2[NbIV(CN)8]·4H2O}n (Fe2Nb) was modified at the self-assembly stage by inserting an additional formate HCOO− bridge into its cyanide framework. The resulting mixed-bridged {(NH4)[(H2O)FeII-(μ-HCOO)-FeII(H2O)][NbIV(CN)8]·3H2O}n (Fe2NbHCOO) exhibited additional FeII-HCOO-FeII structural motifs connecting each of the two FeII centers. The insertion of HCOO− was possible due to the substitution of some of the aqua ligands and crystallization water molecules in the parent framework by formate anions and ammonium cations. The formate molecular bridge not only shortened the distance between FeII ions in Fe2NbHCOO from 6.609 Å to 6.141 Å, but also created additional magnetic interaction pathways between the magnetic centers, resulting in an increase in the long range magnetic ordering temperature from 43 K for Fe2Nb to 58 K. The mixed-bridged Fe2NbHCOO also showed a much broader magnetic hysteresis loop of 0.102 T, compared to 0.013 T for Fe2Nb.

A novel oxalate-based three-dimensional coordination polymer showing magnetic ordering and high proton conductivity

2017 ◽  
Vol 46 (43) ◽  
pp. 15130-15137 ◽  
Author(s):  
Marta Mon ◽  
Julia Vallejo ◽  
Jorge Pasán ◽  
Oscar Fabelo ◽  
Cyrille Train ◽  
...  
Keyword(s):  
Low Temperature ◽  
Coordination Polymer ◽  
Proton Conductivity ◽  
Three Dimensional ◽  
Magnetic Ordering ◽  
High Proton Conductivity ◽  
Multifunctional Material ◽  
High Proton

A novel example of an oxalate-based multifunctional material is reported here showing the coexistence of low-temperature magnetic ordering and high proton conductivity.

N-methylimidazolium containing metal phosphate-oxalates: solvent-free synthesis, crystal structure, and proton conduction

CrystEngComm ◽  
2022 ◽  
Author(s):  
Junfeng Zhang ◽  
Qing Lei ◽  
Lindong Luan ◽  
Hongmei Zeng ◽  
Guohong Zou ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Layered Structure ◽  
Three Dimensional ◽  
Proton Conduction ◽  
Solvent Free ◽  
Dimensional Structure ◽  
Metal Phosphate ◽  
Three Dimensional Structure ◽  
Solvent Free Conditions ◽  
Solvent Free Synthesis

Two N-methylimidazolium containing metal phosphate-oxalates (denoted SCU-40 and SCU-42) were prepared under solvent-free conditions. SCU-40 has a three-dimensional structure with a zeolitic crb topology, while SCU-42 has a layered structure...

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