Ln ₂ (SeO ₃ ) ₂ (SO ₄ )(H ₂ O) ₂ (Ln=Sm, Dy, Yb): A Mixed‐Ligand Pathway to New Lanthanide(III) Multifunctional Materials Featuring Nonlinear Optical and Magnetic Anisotropy Properties

Bottom-up assembly of optically nonlinear and magnetically anisotropic lanthanide materials involving precisely placed spin carriers optimized metal-ligand coordination offers a potential route to developing electronic architectures for coherent radiation generation spin-based technologies, but the chemical design historically has been extremely hard achieve. To address this, we developed worthwhile avenue creating new noncentrosymmetric chiral Ln3+ Ln2(SeO3)2(SO4)(H2O)2 (Ln=Sm, Dy, Yb) by mixed-ligand design. The exhibit phase-matching optical responses, elucidating feasibility heteroanionic strategy. displays paramagnetic property with strong magnetic anisotropy facilitated large spin-orbit coupling. This study demonstrates pathway previously unknown polar magnets multiple functionalities.