Structures, magnetism, and oxygen evolution reaction (OER) of azidoisophthalate bridging Cu(II) and Co(II) coordination polymers DOI
Sabir Ahmed, Koushik Sarkar, Arnab Samanta

et al.

Applied Organometallic Chemistry, Journal Year: 2024, Volume and Issue: 38(9)

Published: July 12, 2024

Two newly derived coordination polymers of Cu(II) and Co(II), namely {[Cu(μ‐5‐AzIA)(Py) 2 ]⋅[Cu(5‐AzIA)(Py) (H O)]} n ( CP1 ) {[Co(μ‐5‐AzIA) (Py) 4 ]⋅[Co(5‐AzIA)(Py) ]} CP2 5‐AzIA 2− = 5‐azidoisophthalate; Py pyridine) are synthesized structurally characterized by single‐crystal X‐ray diffraction (SXRD), powder (PXRD), Fourier transform infrared data. As evident from thermogravimetric data, loses coordinated water at 110°C the final residue reaches 530°C as CuO; is stable up to 150°C, 415°C Co O 3 . serves both chelating monodentate carboxylate bridging ligand adjacent metal centers in Co(II) construct CPs The form eight‐member carboxylato bridging, [M (RCOO) ], coordinate with rings assemblage through π‐‐‐π interaction. magnetic measurements show antiferromagnetic super‐exchange properties. Interestingly, shows field‐induced ordering a higher field temperature ̴ K owing π•••π stacking between flagging pyridine moieties. Oxygen evolution reaction (OER) excellent catalytic effectiveness than reference standard RuO catalyst. comparative activity was thoroughly investigated well supported Tafel slope, charge‐transfer resistance (Rct), electrochemically active surface area calculation.

Language: Английский

Insights into kesterite nanolattice magnetisation plateaus via Monte Carlo simulation DOI
Z. Fadil,

D. Kabouchi,

R. El Fdil

et al.

The Philosophical Magazine A Journal of Theoretical Experimental and Applied Physics, Journal Year: 2024, Volume and Issue: 104(24), P. 1256 - 1269

Published: Aug. 16, 2024

This study utilised the Blume-Capel model to investigate magnetic behaviour of a kesterite nanolattice by means Monte Carlo simulations. The investigated nano-system, consisting mixed spins atoms, exhibited magnetisation plateaus and level changes in response external field. These findings underscore intricate interplay among various physical parameters influencing nanolattice, providing valuable insights for understanding potential applications this system.

Language: Английский

Citations

1
Understanding the Formation of Colloidal Ferrimagnetic CuCr2Se4 Nanocrystals with Strong Room-Temperature Magnetic Circular Dichroism DOI

Samantha C. Harvey,

Jonathan M. DeStefano, Jiun‐Haw Chu

et al.

Chemistry of Materials, Journal Year: 2024, Volume and Issue: 36(21), P. 10746 - 10757

Published: Oct. 18, 2024

The ongoing development and eventual implementation of magnetic nanocrystals in devices requires not only syntheses that can bring bulk compositions down to the nanoscale but also a deep understanding their formation such size, morphology, composition be finely tuned. Chromium chalcogenide spinels are class materials epitomize this dilemma; unique magneto-optical properties make them promising for applications spintronics, data storage, quantum information sciences, few have been synthesized as colloidal nanocrystals. Furthermore, these existing reports lack mechanistic demonstrate little control over physical characteristics final products. Here, we set forth understand synthesis CuCr2Se4 by examining how structure, composition, evolve course reaction. We find material proceeds through binary copper selenide nanocrystal intermediates followed Cr incorporation via diffusion. This process results polycrystalline do exhibit ordering until Cu modifies stoichiometry defects annealed, which takes approximately 40 min at 340 °C achieve. resulting show strongly enhanced circular dichroism signal plasma frequency ℏωpl ∼ 1.0 eV with field dependence reflects magnetization Cr3+ spin sublattice. These highlight possibility solution processing strong near-IR future device integration.

Language: Английский

Citations

1
Red blood cell-like magnetic particles and magnetic field promoted neuronal outgrowth by activating Netrin-1/DCC signaling pathway in vitro and in vivo DOI
Meili Liu, Chongquan Huang, Junwei Xu

et al.

Composites Part B Engineering, Journal Year: 2022, Volume and Issue: 237, P. 109789 - 109789

Published: March 19, 2022

Language: Английский

Citations

5
Nerve tissue regeneration based on magnetic and conductive bifunctional hydrogel scaffold DOI
Kun Li,

Dian Ye,

Zitong An

et al.

Materials Today Communications, Journal Year: 2024, Volume and Issue: 39, P. 109120 - 109120

Published: May 8, 2024

Language: Английский

Citations

0
Structures, magnetism, and oxygen evolution reaction (OER) of azidoisophthalate bridging Cu(II) and Co(II) coordination polymers DOI
Sabir Ahmed, Koushik Sarkar, Arnab Samanta

et al.

Applied Organometallic Chemistry, Journal Year: 2024, Volume and Issue: 38(9)

Published: July 12, 2024

Two newly derived coordination polymers of Cu(II) and Co(II), namely {[Cu(μ‐5‐AzIA)(Py) 2 ]⋅[Cu(5‐AzIA)(Py) (H O)]} n ( CP1 ) {[Co(μ‐5‐AzIA) (Py) 4 ]⋅[Co(5‐AzIA)(Py) ]} CP2 5‐AzIA 2− = 5‐azidoisophthalate; Py pyridine) are synthesized structurally characterized by single‐crystal X‐ray diffraction (SXRD), powder (PXRD), Fourier transform infrared data. As evident from thermogravimetric data, loses coordinated water at 110°C the final residue reaches 530°C as CuO; is stable up to 150°C, 415°C Co O 3 . serves both chelating monodentate carboxylate bridging ligand adjacent metal centers in Co(II) construct CPs The form eight‐member carboxylato bridging, [M (RCOO) ], coordinate with rings assemblage through π‐‐‐π interaction. magnetic measurements show antiferromagnetic super‐exchange properties. Interestingly, shows field‐induced ordering a higher field temperature ̴ K owing π•••π stacking between flagging pyridine moieties. Oxygen evolution reaction (OER) excellent catalytic effectiveness than reference standard RuO catalyst. comparative activity was thoroughly investigated well supported Tafel slope, charge‐transfer resistance (Rct), electrochemically active surface area calculation.

Language: Английский

Citations

0