Macrocyclic ligand encapsulating dysprosium triangles: axial ligands perturbed magnetic dynamics.

Chem Commun (Camb)

State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, P. R. China.

Published: July 2012

AI Article Synopsis

  • - Two Dy(3) triangles were successfully created and encapsulated within a macrocycle ligand.
  • - This synthesis offers a unique chance to study the relaxation dynamics of these complexes.
  • - The relaxation can be influenced by changing the axial ligands associated with the triangles.

Article Abstract

Two Dy(3) triangles encapsulated inside the cavity of a macrocycle ligand have been successfully synthesized, providing a unique opportunity to probe the relaxation dynamics of the complexes by altering the axial ligands.

Download full-text PDF

Source
http://dx.doi.org/10.1039/c2cc32827eDOI Listing

Publication Analysis

Top Keywords

axial ligands
8
macrocyclic ligand
4
ligand encapsulating
4
encapsulating dysprosium
4
dysprosium triangles
4
triangles axial
4
ligands perturbed
4
perturbed magnetic
4
magnetic dynamics
4
dynamics dy3
4

Similar Publications

The catalytic efficiency of natural enzymes depends on the precise electronic interactions between active centers and cofactors within a three-dimensional (3D) structure. Single-atom nanozymes (SAzymes) attempt to mimic this structure by modifying metal active sites with molecular ligands. However, SAzymes struggle to match the catalytic efficiency of natural enzymes due to constraints in active site proximity, quantity, and the inability to simulate electron transfer processes driven by internal electronic structures of natural enzymes.

View Article and Find Full Text PDF

Arraying and Guest Inclusion of Soluble Metal-Organic Nanotubes Composed of Macrocyclic Paddle-Wheel Metal Complexes.

Angew Chem Int Ed Engl

December 2024

Nagoya University: Nagoya Daigaku, Department of Chemistry, Graduate School of Science, Furo-cho, Chikusa-ku, 464-8602, Nagoya, JAPAN.

A new series of metal-organic nanotubes was constructed through one-dimensional assembly using molecular triangles or molecular squares composed of paddlewheel dirhodium complexes and bidentate axial ligands. The metal-organic nanotubes were significantly different from conventional solid metal-organic framework (MOF) motifs. They exhibit good solubility owing to the branched side chains at their periphery and demonstrate high orientation capabilities in thin films owing to their anisotropic structure.

View Article and Find Full Text PDF

Imperfections in metal halide perovskites, such as those induced by light exposure or thermal stress, compromise device performance and stability. A key challenge is immobilizing volatile iodine produced by iodide oxidation and regenerating impurities like elemental lead and iodine. Here, we address this by integrating a redox-active supramolecular assembly of nickel octaethylporphyrin into perovskite film, functioning as both an immobilizer and redox shuttle.

View Article and Find Full Text PDF

Chlorine Axial Coordination Activated Lanthanum Single Atoms for Efficient Oxygen Electroreduction with Maximum Utilization.

Adv Mater

December 2024

Tianjin Key Lab for Rare Earth Materials and Applications, Center for Rare Earth and Inorganic Functional Materials, School of Materials Science and Engineering, National Institute for Advanced Materials, Nankai University, Tianjin, 300350, China.

Currently, there are still obstacles to rationally designing the ligand fields to activate rare-earth (RE) elements with satisfactory intrinsic electrocatalytic reactivity. Herein, axial coordination strategies and nanostructure design are applied for the construction of La single atoms (La-Cl SAs/NHPC) with satisfactory oxygen reduction reaction (ORR) activity. The nontrivial LaNCl motifs configuration and the hierarchical porous carbon substrate that facilitates maximized metal atom utilization ensure high half-wave potential (0.

View Article and Find Full Text PDF

In this study, a tetradentate Schiff-base ligand (HL), synthesized by the condensation of ethylenediamine with 2-hydroxy-3-methoxy-5-methylbenzaldehyde, was reacted with either manganese salts or manganese salts in the presence of various pseudohalides in methanol. This reaction resulted in the formation of five mononuclear Mn complexes: [Mn(L)(HO)](NO)·1/2HO·1/2CHOH (), [Mn(L)(HO)](ClO)·HO (), [Mn(L)(N)(HO)]·1/3HO (), [Mn(L)(NCS)(HO)] (), and [Mn(L)(HO)](dca) () (where dca is dicyanamide ion). X-ray crystallography revealed that the Mn centers adopt a hexa-coordinate pseudo-octahedral geometry, where the equatorial plane is constructed with phenoxo oxygen and imine nitrogen atoms from the Schiff base ligand, while the axial positions are occupied by water molecules or a combination of water and pseudohalides.

View Article and Find Full Text PDF

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!