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Dynamic Magnetic Properties of Germole-ligated Lanthanide Sandwich Complexes.

ABSTRACT: The first germole-ligated single-molecule magnets are reported, with contrasting properties found for the near-linear sandwich complexes [(η⁸ -COT)Ln(η⁵ -Cp^Ge ]^- , where Ln=Dy (1_Dy ) or Er (1_Er ), COT is cyclo-octatetraenyl and Cp^Ge is [GeC₄ -2,5-(SiMe₃ )₂ -3,4-Me₂ ]^2- . Whereas 1_Er has an energy barrier of 120(1) cm^-1 in zero applied field and open hysteresis loops up to 10 K, the relaxation in 1_Dy is characterized by quantum tunneling within the ground state.

SUBMITTER: De S

PROVIDER: S-EPMC10947301 | biostudies-literature | 2023 Jul

REPOSITORIES: biostudies-literature

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Dynamic Magnetic Properties of Germole-ligated Lanthanide Sandwich Complexes.

De Siddhartha S Mondal Arpan A Ruan Ze-Yu ZY Tong Ming-Liang ML Layfield Richard A RA

Chemistry (Weinheim an der Bergstrasse, Germany) 20230511 37

The first germole-ligated single-molecule magnets are reported, with contrasting properties found for the near-linear sandwich complexes [(η8 -COT)Ln(η5 -CpGe ]- , where Ln=Dy (1Dy ) or Er (1Er ), COT is cyclo-octatetraenyl and CpGe is [GeC4 -2,5-(SiMe3 )2 -3,4-Me2 ]2- . Whereas 1Er has an energy barrier of 120(1) cm-1 in zero applied field and ...[more]

PMID: 37017588

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