Axially Chiral Dodecanuclear Lanthanide Clusters Constructed by “Bottom‐Up” Self‐assembly for Enantioselective Sensing

Abstract

Via the bottom-up synthetic strategy, we synthesized a pair of dodecanuclear metal clusters of Eu 12 (C 2 O 4 ) 9 (R/S-BNP) 18 (EtOH) 6 -(H 2 O) 6 •8EtOH•7H 2 O (complex 2), which represent the largest axial chiral lanthanide metal clusters. In the structure, rare four-pointed star coordination mode of oxalic acid is reported by this work. In addition, as a fluorescence sensor, the complex 2 exhibits high enantioselectivity for R-/S-BINOL-TF 2 (EF = 2.87) and other chiral binaphthyl derivatives.

Study on 2D Molecular Networks of Flexible Pentacarboxylic Acid Ligands Induced by Ether Bonds in Response to Selective Guest Inclusion

“…In previous studies, organic molecules with various functional groups have been used to construct two-dimensional nanostructures through weak intermolecular interactions, attracting significant attention in bottom-up nanotechnology. − By the strategy of molecular tectonics, molecular building blocks possessing well-defined shapes and multiple sites can engage in potent directional interactions, thereby spontaneously assembling into ordered materials termed tectons. − By designing functional organic molecular tectons, it is possible to predict and control the self-assembly of nanostructures on surfaces, which has promising applications in nanotechnology. − …”

A homochiral hexagadolinium phosphonate cluster with a large magnetocaloric effect

“…[30] Su and co-worker synthesized a pair of axially dodecanuclear metal clusters via the bottom-up synthetic strategy, which can be as uorescence sensor for enantioselective sensing. [31] Kong' group report the molecular self-assembly of hydroxido-bridged {Ln 5 Ni 6 } ((Ln 3+ = Dy 3+ , Y 3+ ) metal cluster, which provide the rst experimental observation of intense multimetal site MChD signals in the visible-near-infrared region. [32] Nonetheless, the precise prediction and controlled development of homochiral polynuclear Ln-complexes, and achieving the coupling effect of chirality and magnetism is still a challenge.…”

Assembly of pinwheel/twist-shaped chiral lanthanide clusters with rotor structures by an annular/linear growth mechanism and their magnetic properties

“…[4][5][6] As a class of nanoscale molecular aggregates with complex and hierarchical structure-highnuclearity clusters, [7][8][9][10][11] the introduction of chirality and its formation mechanism have received extensive attention. [12][13][14][15][16] The selection of suitable chiral ligands is among the most efficient methods to assemble chiral high-nuclearity clusters. [17][18][19][20][21] The development of methods to analyze the self-assembly mechanism of chiral high-nuclearity lanthanide clusters is of great significance for the exploration of the formation mechanism of biological macromolecules with complex hierarchical structures.…”