A heptanuclear {DyCu} complex as a single-molecule magnet

The structure and magnetic properties of a complex containing a {Dy 2 Cu 5 } core are presented. In 1 , the Dy( iii ) are 9- and the Cu( ii ) are 4-, 5- and 6-coordinated. Antiferromagnetic interactions cause an irregular energy spectrum with the ground state J = 25/2. The complex is a single molecu...

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Published inDalton transactions : an international journal of inorganic chemistry Vol. 53; no. 11; pp. 5147 - 5151
Main Authors Mi ová, Romana, Rajnák, Cyril, Titiš, Ján, Monco, Ján, Nová iková, Jana, Bie ko, Alina, Bo a, Roman
Format Journal Article
LanguageEnglish
Published England Royal Society of Chemistry 12.03.2024
Subjects
Antiferromagnetism
Energy spectra
Magnetic induction
Magnetic properties
Magnetic relaxation
Molecular structure
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Summary:The structure and magnetic properties of a complex containing a {Dy 2 Cu 5 } core are presented. In 1 , the Dy( iii ) are 9- and the Cu( ii ) are 4-, 5- and 6-coordinated. Antiferromagnetic interactions cause an irregular energy spectrum with the ground state J = 25/2. The complex is a single molecule magnet exhibiting slow magnetic relaxation in zero magnetic field. The hetero-bimetallic complex [(H 2 O) 6 Dy III 2 (μ 2 -L 1 ) 2 (μ 3 -O) 4 Cu II 5 (μ 2 -Cl) 2 ] is a single-molecule magnet that shows SMR even in the absence of an external magnetic field. At B DC = 0.1 T and 0.2 T, three or two relaxation channels are present.
Bibliography:2160393
For ESI and crystallographic data in CIF or other electronic format see DOI
Electronic supplementary information (ESI) available: Analytical data; NMR, IR and UV/Vis spectra; bond lengths and bond angles, and analysis of DC and AC magnetic data. CCDC
https://doi.org/10.1039/d3dt03811d
ObjectType-Article-1
SourceType-Scholarly Journals-1
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content type line 23
ISSN:1477-9226
1477-9234
DOI:10.1039/d3dt03811d