Electronic Structure and Magnetic Properties of Lanthanide Molecular Complexes

A Family of Lanthanoid Dimers with Nitroanilato Bridges

“…The observed magnetic behavior in the six compounds are those expected for isolated or very weakly coupled Ln(III) ions [49]. The values observed at room temperature are close to those calculated for 6 H5/2, 8 S7/2, 7 F6, 6 H15/2, 5 I8, and 4 I15/2 ground multiplets for 1-6, respectively [50]. The decrease observed in all the samples expect in 2, is due to the progressive depopulation of the higher energy Stark components arising from the splitting of the aforementioned ground levels as a The observed magnetic behavior in the six compounds are those expected for isolated or very weakly coupled Ln(III) ions [49].…”

“…The decrease observed in all the samples expect in 2, is due to the progressive depopulation of the higher energy Stark components arising from the splitting of the aforementioned ground levels as a The observed magnetic behavior in the six compounds are those expected for isolated or very weakly coupled Ln(III) ions [49]. The values observed at room temperature are close to those calculated for 6 H 5/2 , 8 S 7/2 , 7 F 6 , 6 H 15/2 , 5 I 8 , and 4 I 15/2 ground multiplets for 1-6, respectively [50]. The decrease observed in all the samples expect in 2, is due to the progressive depopulation of the higher energy Stark components arising from the splitting of the aforementioned ground levels as a consequence of the ligand field.…”

Tuning the Structure and Properties of Lanthanoid Coordination Polymers with an Asymmetric Anilato Ligand

“…The observed χ m T values at room temperature are close to those calculated for 3 H 4 (in compounds 2 and 3) or 2 F 7/2 ground multiplets (in compound 4) [44]. The decrease observed in the three compounds can be attributed to the progressive depopulation of the higher energy Stark levels that arise from the splitting of the 3 H 4 and 2 F 7/2 ground levels, due to the ligand field.…”

Trinuclear Lanthanide Coordination Clusters: Single‐Molecule‐Magnet Behavior and Catalytic Activity in the Friedel‐Crafts Alkylation Reaction

“…29.5 and 1.8 cm 3 K mol −1 at 2 K for 1 and 2 , respectively (Figure S7, Supporting Information). The decrease witnessed in both complexes may be assigned to a weak antiferromagnetic Ln‐Ln coupling through the triple phenoxido bridge and/or to the progressive depopulation of the higher energy Stark levels resulted from the splitting of the 6 H 15/2 and 4 I 9/2 ground levels due to the ligand field …”

“…The decrease witnessed in both complexes may be assigned to a weak antiferromagnetic Ln-Ln coupling through the triple phenoxido bridge and/or to the progressive depopulation of the higher energy Stark levels resulted from the splitting of the 6 H 15/2 and 4 I 9/2 ground levels due to the ligand field. [45] In order to determine the possible presence of a SMM behaviour we have performed AC susceptibility measurements at very low temperatures for both compounds. Compound 2 does not show any AC signal even when a DC field is applied ( Figure S8-S9, supporting information).…”