Crystal structure, spectroscopy, and magnetism of alternating trinuclear, bridged hydroxo and oxo copper (II) complexes
Year: 2025
Type: article
Abstract: The synthesis, structure, and magnetic properties of a novel metal-organic framework (MOF), CFA-24 ([Cu 6 (dmta) 9 O(OH)]; H-dmta = 4,5-Dimethyl-1 H -1,2,3-triazole), featuring alternating oxo- and hydroxo-bridged Cu (II) triangles are the focus of this study. The synthesis process of H-dmta and CFA-24 was optimized to ensure scalability and high yields, with the resulting MOF characterized using single-crystal X-ray diffraction, powder X-ray diffraction, thermogravimetric analysis , and various spectroscopic techniques. Structural analysis revealed a chiral cubic crystal system (space group P2 1 3), with copper ions forming equilateral triangles linked by triazoles . The study also explores the magnetic behaviour of CFA-24 using SQUID magnetometry and theoretical modeling. The magnetic data indicate strong antiferromagnetic interactions, modulated by Dzyaloshinskii-Moriya interactions (DMI), which contribute to the system's complex magnetic ground state . This research enhances the understanding of magnetically frustrated systems and positions CFA-24 as a potential candidate for spintronic applications.
Source: Journal of Solid State Chemistry
Institution: University of Augsburg
Language: English
Field: Materials Science
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $3,540
OpenAlex ID: W4408880238