Unusual slow magnetic relaxation in a mononuclear copper() complex

A hexacoordinate Cu( ii ) complex with the {CuO 4 O′N} donor set shows an intermolecular π-π stacking owing to which a 1D-chain structure is formed. The DC magnetic data at low temperature are consistent with the Curie law. The AC susceptibility shows a field supported slow magnetic relaxation that...

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Published inDalton transactions : an international journal of inorganic chemistry Vol. 51; no. 14; pp. 5612 - 5616
Main Authors Valigura, Dušan, Rajnák, Cyril, Titiš, Ján, Monco, Ján, Bie ko, Alina, Bo a, Roman
Format Journal Article
LanguageEnglish
Published England Royal Society of Chemistry 05.04.2022
Subjects
Coordination compounds
Copper
Curie temperature
Low temperature
Magnetic induction
Magnetic relaxation
Relaxation time
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Summary:A hexacoordinate Cu( ii ) complex with the {CuO 4 O′N} donor set shows an intermolecular π-π stacking owing to which a 1D-chain structure is formed. The DC magnetic data at low temperature are consistent with the Curie law. The AC susceptibility shows a field supported slow magnetic relaxation that survives up to 7 K. The relaxation time at T = 2.0 K and B DC = 0.2 T is τ = 0.23 ms and it increases at B DC = 0.6 T to τ = 2.9 ms. A hexacoordinate Cu( ii ) complex with the {CuO 4 O′N} donor set shows an intermolecular π-π stacking owing to which a 1D-chain structure is formed.
Bibliography:Electronic supplementary information (ESI) available. CCDC
10.1039/d2dt00023g
For ESI and crystallographic data in CIF or other electronic format see DOI
2065544
2065545
and
ObjectType-Article-1
SourceType-Scholarly Journals-1
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content type line 23
ISSN:1477-9226
1477-9234
DOI:10.1039/d2dt00023g