Correction to “Two Pairs of Homochiral Parallelogram-like Dy4 Cluster Complexes with Strong Magneto-Optical Properties”

Page 20190. The g_MCD values in the original paper were obtained based on g_MCD = 2{Δε(B+) – Δε(B–)}/{Δε(B+) + Δε(B–)} = {Δε(B+) – Δε(B–)}/Δε, i.e., g_MCD = 2Δε(MCD)/Δε(CD), which allows an assessment of the degree to which the Faraday effect of the chiral complex varies with the direction of the magnetic field. Unfortunately, this formula is different from the true meaning of g_MCD = 2(ε₊(B) – ε₊(−B))/(ε₊(B) + ε₊(−B)), i.e., g_MCD = Δε(MCD)/ε. The last paragraph of the Results and Discussion section, beginning “For the magneto-optical Faraday effect of chiral isomers, the strength can generally be estimated by the asymmetric factor of MCD, ...” should be replaced with the following: In the study of the magneto-optical effect, the strongest CD peaks caused by the π–π* transition of the C═N chromophore on the Schiff base ligands are the focus. According to g_MCD = Δε(MCD)/ε,^64,65 i.e., g_MCD = {Δε(B+) – Δε(B−)}/(2ε), in Figures 6a and 6b as well as Figures 6c and 6d, the g_MCD values are calculated to be −1.01 × 10^–4 for D-1 and −9.73 × 10^–5 for L-1 at 325 nm as well as −6.01 × 10^–5 for D-2 and −7.38 × 10^–5 for L-2 at 330 nm (assuming the standard field is 1.0 T). Their corresponding g_CD values are calculated with g_CD = Δε(CD)/ε, giving 2.74 × 10^–4 for D-1 and −2.78 × 10^–4 for L-1 at 325 nm as well as 1.29 × 10^–4 for D-2 and −1.51 × 10^–4 for L-2 at 330 nm. Obviously, g_MCD = g_CDΔε(MCD)/Δε(CD) for the homochiral complexes, in which the Δε(MCD)/Δε(CD) value corresponds to the incremental percentage of the CD signal strength when the magnetic field is applied. Therefore, the Δε(MCD)/Δε(CD) values at the CD signal peaks may be used to assess the magneto-optical Faraday effect for the homochiral complexes.¹⁹ The larger the absolute value of Δε(MCD)/Δε(CD), the stronger the magneto-optical Faraday effect. The Δε(MCD)/Δε(CD) values at 1.6 T are −59.2% for D-1 and 56.0% for L-1 at 325 nm, and −74.6% for D-2 and 78.2% for L-2 at 330 nm. The |Δε(MCD)/Δε(CD)| values of D-1/L-1 at 325 nm and 1.6 T (59.2% and 56.0%) are smaller than those of D-2/L-2 at 330 nm and 1.6 T (74.6% and 78.2%), which suggests that the larger conjugated group on the Schiff ligand is beneficial to the magneto-optical Faraday effect. Furthermore, the |Δε(MCD)/Δε(CD)| values of D-1/L-1 at 325 nm and 1.6 T and D-2/L-2 at 330 nm and 1.6 T are large for the π–π* transition, and they are obviously larger than those of [Dy₂(D-tfc)₄(chp)₂(MeOH)₂]/[Dy₂(L-tfc)₄(chp)₂(MeOH)₂] at 303 nm and 1.6 T (32.5% and 33.6%),¹⁹ suggesting that D-1/L-1 and D-2/L-2 have strong magneto-optical Faraday effects. Figures S16 and S17 should be deleted from the Supporting Information accordingly. These corrections do not alter the overall findings and conclusions of the paper. We apologize for any confusion these errors may cause, and we appreciate the understanding of the editors and readers. This article has not yet been cited by other publications.