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Russian Doll-like 3d-4f Cluster Wheels with Slow Relaxation of Magnetization.

ABSTRACT: The solvothermal reactions of LnCl₃·6H₂O and MCl₂·6H₂O (M = Co, Ni) with 2,2'-diphenol (H₂L¹) and 5,7-dichloro-8-hydroxyquinoline (HL²) gave three 3d-4f heterometallic wheel-like nano-clusters [Ln₇M₆(L¹)₆(L²)₆(µ₃-OH)₆(OCH₃)₆Cl(CH₃CN)₆]Cl₂·xH₂O (Ln = Dy, M = Co, x = 3 for 1; Ln = Dy, M = Ni, x = 0 for 2; Ln = Tb, M = Ni, x = 0 for 3) with similar cluster structure. The innermost Ln(III) ion is encapsulated in a planar Ln₆ ring which is further embedded in a chair-conformation M₆ ring, constructing a Russian doll-like 3d-4f cluster wheel Ln(III)⸦Ln₆⸦M₆. 2 and 3 show obvious slow magnetic relaxation behavior with negligible opening of the magnetic hysteresis loop. Such a Russian doll-like 3d-4f cluster wheel with the lanthanide disc isolated by transition metallo-ring is rarely reported.

SUBMITTER: Liu L

PROVIDER: S-EPMC10421525 | biostudies-literature | 2023 Aug

REPOSITORIES: biostudies-literature

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Russian Doll-like 3d-4f Cluster Wheels with Slow Relaxation of Magnetization.

Liu Lan L Yang Panpan P Qiu Zhihui Z Wang Kai K Liu Dongcheng D Liang Yuning Y Hu Huancheng H Zou Huahong H Zou Huahong H Liang Fupei F Chen Zilu Z

Molecules (Basel, Switzerland) 20230806 15

The solvothermal reactions of LnCl3·6H2O and MCl2·6H2O (M = Co, Ni) with 2,2'-diphenol (H2L1) and 5,7-dichloro-8-hydroxyquinoline (HL2) gave three 3d-4f heterometallic wheel-like nano-clusters [Ln7M6(L1)6(L2)6(µ3-OH)6(OCH3)6Cl(CH3CN)6]Cl2·xH2O (Ln = Dy, M ...[more]

PMID: 37570876

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