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Structure and Magnetic Properties of Two Discrete 3d‐4f Heterometallic Complexes
Author(s) -
Yang Panpan,
Yu Shui,
Quan Lixia,
Hu Huancheng,
Liu Dongcheng,
Liang Yuning,
Li Bo,
Liang Fupei,
Chen Zilu
Publication year - 2020
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.202002611
Subject(s) - crystallography , chemistry , ligand (biochemistry) , ion , metal , ferromagnetism , metal ions in aqueous solution , chloride , relaxation (psychology) , magnetic relaxation , transition metal , oxygen atom , oxygen , stereochemistry , inorganic chemistry , molecule , magnetization , physics , catalysis , magnetic field , organic chemistry , social psychology , psychology , biochemistry , receptor , quantum mechanics
Two discrete 3d–4f heterometallic complexes [Co III Dy III (CH 3 CN) 0.5 (L 1 ) 3 (NO 3 ) 3 ] ( 1 ) and [Ni 2 II Dy III (EtOH)(L 2 ) 4 (NO 3 ) 2 Cl] ⋅ CH 3 CN ( 2 ) were obtained from the reactions of 8‐hydroxyquinoline (HL 1 ) or 2‐methyl‐8‐hydroxyquinoline (HL 2 ) with their corresponding metal salts. Complex 1 presents a dinuclear structure with the Dy(III) and Co(II) ions linked by three phenolic oxygen atoms from three (L 1 ) − ligands. Complex 2 presents a triangular trinuclear structure with the two Ni(II) ions and one Dy(III) ion consolidated by one chloride ligand and four phenolic oxygen atoms from four (L 2 ) − ligands. Their χ M T versus T plots show different profiles with obvious ferromagnetic interactions between the metal ions in 2 . Both complexes exhibit slow magnetic relaxation behaviours, but with obvious different features. It revealed a cooperatively regulating effect of ligand and transition metal ions on the structures and magnetic properties.