Abstract
We designed and synthesized a semi-rigid bis-tridentate ligand L which could undergo a trans-to-cis conformational transition when coordinated onto lanthanum ions through the rotation of the single bond on the central terphenyl bridge. By adjusting the metal/ligand ratio, a single-ligand bridged dinuclear complex La2L3 and an infinitely extending two-dimensional layered metal organic polymer (La2L2)n can be obtained. Through the induction of the chiral auxiliary ligand GR/S, these two achiral assemblies could both be transformed into the chiral mononuclear three-component complex LaLGR/S. In addition, we also realized a linear ee sensing for the auxiliary ligand by induced circular dichroism.
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