Research output: Contribution to journal › Article › peer-review
Dinuclear Rare-Earth β-Diketiminates with Bridging 3,5-Ditert-butyl-catecholates: Synthesis, Structure, and Single-Molecule Magnet Properties. / Klementyeva, Svetlana V.; Gamer, Michael T.; Schulze, Michael et al.
In: Inorganic Chemistry, Vol. 64, No. 1, 2025, p. 701–715.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Dinuclear Rare-Earth β-Diketiminates with Bridging 3,5-Ditert-butyl-catecholates: Synthesis, Structure, and Single-Molecule Magnet Properties
AU - Klementyeva, Svetlana V.
AU - Gamer, Michael T.
AU - Schulze, Michael
AU - Suryadevara, Nithin
AU - Bogomyakov, Artem S.
AU - Abramov, Pavel A.
AU - Konchenko, Sergey N.
AU - Ruben, Mario
AU - Wernsdorfer, Wolfgang
AU - Moreno-Pineda, Eufemio
N1 - We acknowledge the DFG-CCR 1573 “4f for future” (projectB3) and the Karlsruhe Nano Micro Facility (KNMF, www.kit.edu/knmf) for the provision of access to instruments at theirlaboratories. W.W. thanks the German Research Foundation(DFG) for the Gottfried Wilhelm Leibniz-Award, ZVN-2020_WE 4458-5. E.M.-P. thanks the Alexander vonHumboldt fellowship for experienced researchers for support.S.V.K. thanks DFG (KL 3519/2-1) for financial support.Authors thank Prof. Dr. Peter Roesky for the providedexperimental facilities and Sibylle Schneider for single-crystalX-ray diffraction measurements for compounds 3a,b.
PY - 2025
Y1 - 2025
N2 - The dinuclear β-diketiminato complex [L1ClDy(μ-Cl)3DyL1(THF)] (1) (L1 = {2,6-iPr2C6H3-NC(Me)CHC(Me)N-2,6-iPr2C6H3}−) was obtained by reaction of DyCl3 with KL1 in a molar ratio of 1:1 and used for the preparation of the mixed-ligand complex [L1Dy(μ-3,5-Cat)]2 (2) by salt metathesis reaction with 3,5-CatK2 (3,5-Cat −3,5-di-tert-butyl-catecholate). Reactions of 3,5-CatNa2 with [L2LnCl2(THF)2] (Ln3+ = Dy, Y) ligated with the less bulky ligand L2 = {2,4,6-Me3C6H2-NC(Me)CHC(Me)N-2,4,6-Me3C6H2}− afforded the mixed-ligand THF-containing complexes [L2Ln(μ-3,5-Cat)(THF)]2 (Ln3+ = Dy (3a), Y (3b)). All new complexes were fully characterized, and the solid-state structures were determined by single-crystal X-ray diffraction. Magnetic measurements revealed single-molecule magnet behavior for the dysprosium complexes. Sub-Kelvin μSQUID studies confirm the SMM character of the systems, while CASSCF calculation along with simulation of the experimental data yields an antiferromagnetic interaction operating between the Dy3+ ions.
AB - The dinuclear β-diketiminato complex [L1ClDy(μ-Cl)3DyL1(THF)] (1) (L1 = {2,6-iPr2C6H3-NC(Me)CHC(Me)N-2,6-iPr2C6H3}−) was obtained by reaction of DyCl3 with KL1 in a molar ratio of 1:1 and used for the preparation of the mixed-ligand complex [L1Dy(μ-3,5-Cat)]2 (2) by salt metathesis reaction with 3,5-CatK2 (3,5-Cat −3,5-di-tert-butyl-catecholate). Reactions of 3,5-CatNa2 with [L2LnCl2(THF)2] (Ln3+ = Dy, Y) ligated with the less bulky ligand L2 = {2,4,6-Me3C6H2-NC(Me)CHC(Me)N-2,4,6-Me3C6H2}− afforded the mixed-ligand THF-containing complexes [L2Ln(μ-3,5-Cat)(THF)]2 (Ln3+ = Dy (3a), Y (3b)). All new complexes were fully characterized, and the solid-state structures were determined by single-crystal X-ray diffraction. Magnetic measurements revealed single-molecule magnet behavior for the dysprosium complexes. Sub-Kelvin μSQUID studies confirm the SMM character of the systems, while CASSCF calculation along with simulation of the experimental data yields an antiferromagnetic interaction operating between the Dy3+ ions.
KW - Scopus
KW - lons
KW - Ligands
KW - lanthanides
KW - Magnetic properties
KW - excited states
UR - https://www.scopus.com/record/display.uri?eid=2-s2.0-85212774020&origin=inward&txGid=262a8190eeed4cb63283b6d5983b7245
UR - https://www.mendeley.com/catalogue/a976c62b-ffda-3fad-9905-527a85bf4593/
U2 - 10.1021/acs.inorgchem.4c03278
DO - 10.1021/acs.inorgchem.4c03278
M3 - Article
C2 - 39707994
VL - 64
SP - 701
EP - 715
JO - Inorganic Chemistry
JF - Inorganic Chemistry
SN - 0020-1669
IS - 1
ER -
ID: 61406304