Supramolecular cage-mediated cargo transport

Ling, Qing-Hui; Lou, Zhen-Chen; Zhang, Lei; Jin, Tongxia; Dou, Wei-Tao; Yang, Hai-Bo; Xu, Lin

doi:10.1039/d3cs01081c

Chem. Soc. Rev.

2024

DOI: 10.1039/d3cs01081c

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Supramolecular cage-mediated cargo transport

Qing-Hui Ling,

Zhen-Chen Lou,

Lei Zhang

et al.

Abstract: This review comprehensively summarizes the development of supramolecular cages as carriers and channels for cargo transport in abiotic and biological systems.

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2024

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Cited by 6 publications

References 116 publications

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Ring‐Size Control and Guest‐Induced Circularly Polarized Luminescence in Heteroleptic Pd₃A₃B₃ and Pd₄A₄B₄ Assemblies

Ebbert,

Benchimol,

Platzek

et al. 2024

Angewandte Chemie

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Two new structural motifs within the class of heteroleptic PdnAnBn assemblies, namely syn‐cis‐Pd3A3B3 bowls and bowl‐ (syn) or saddle‐ (anti) shaped cis‐Pd4A4B4 rings are introduced. All of the ten examples share a common longer fluorenone‐based bis‐monodentate ligand, equipped with meta‐pyridine donor groups. The ring size (3‐ vs. 4‐membered) and conformational preference (bowl vs. saddle) are controlled by the choice of the shorter ligand. These carry para‐pyridine donors, different aromatic backbones (benzene, thiophene or selenophene) and either no or small or bulky endohedral substituents, serving to control the nuclearity of the heteroleptic rings through different effects (ligand angle, charge distribution or backbone bulk). Moreover, the luminescence of the fluorenone ligand is conserved in the formed architectures. Emission intensity as well as host‐guest properties vary depending on the inward‐pointing functions. All Pd3A3B3 assemblies are shown to bind chiral guest BINOL bis‐sulfonate which imparts its chirality to the entire host‐guest complex. This results in a guest‐induced circular dichroism (CD) and circularly polarized luminescence (CPL) with dissymmetry factor glum up to 10‐3.

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Ring‐Size Control and Guest‐Induced Circularly Polarized Luminescence in Heteroleptic Pd₃A₃B₃ and Pd₄A₄B₄ Assemblies

Ebbert,

Benchimol,

Platzek

et al. 2024

Angewandte Chemie

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Orientational Compatibility Modulation of Ligands in Low‐Symmetry Multi‐Cavity Discrete Coordination Cages by Neighbouring Cage Participation

Kumar,

Krishnaswamy,

Chand

2024

Angewandte Chemie

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Complexation of Pd(II) with a designer unsymmetrical bis‐monodentate ligand (2:4 ratio) yielded a specific Pd2L4 type “single‐cavity discrete coordination cage” (SCDCC), from a pool of 4 isomeric structures. The observed selctivity is attributed to inherent orientational preference of the ligand strands around the metal centers. Crafting a short coordinating arm at either ends of the bis‐monodentate ligand (i.e the longer‐arm) produced a pair of unsymmetrical isomeric tris‐monodentate ligands; whereas crafting the same short‐arm at both ends of the ligand gives an unsymmetrical tetrakis‐monodentate ligand. Complexation of Pd(II) with either of the isomeric tris‐monodenate ligands (3:4 ratio) resulted in corresponding low‐symmetry “multi‐cavity discrete coordination cage” MCDCC having two conjoined cavities, though the inherent relative orientational preference of the longer arms is not achievable in these cages. The enforced orientation is sustained by “Neighbouring Cage Participation” (NCP). However, one‐pot combination of Pd(II), with a mixture of isomeric tris‐monodenate ligands in 3:2:2 ratio produced an integratively self‐sorted mixed‐ligated MCDCC from a pool of 31 structures. Also, mixing Pd(II) with the tetrakis‐monodentate ligand produced a MCDCC having three conjoined cavities. The inherent orientational preference of longer‐arm of the ligand strands is retained in the mixed‐ligated double‐cavity and the homo‐ligated triple cavity cages.

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Ring‐Size Control and Guest‐Induced Circularly Polarized Luminescence in Heteroleptic Pd₃A₃B₃ and Pd₄A₄B₄ Assemblies

Ebbert,

Benchimol,

Platzek

et al. 2024

Angew Chem Int Ed

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Supramolecular cage-mediated cargo transport

Abstract: This review comprehensively summarizes the development of supramolecular cages as carriers and channels for cargo transport in abiotic and biological systems.

Cited by 6 publications

References 116 publications

Ring‐Size Control and Guest‐Induced Circularly Polarized Luminescence in Heteroleptic Pd₃A₃B₃ and Pd₄A₄B₄ Assemblies

Ring‐Size Control and Guest‐Induced Circularly Polarized Luminescence in Heteroleptic Pd₃A₃B₃ and Pd₄A₄B₄ Assemblies

Orientational Compatibility Modulation of Ligands in Low‐Symmetry Multi‐Cavity Discrete Coordination Cages by Neighbouring Cage Participation

Ring‐Size Control and Guest‐Induced Circularly Polarized Luminescence in Heteroleptic Pd₃A₃B₃ and Pd₄A₄B₄ Assemblies

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Supramolecular cage-mediated cargo transport

Abstract: This review comprehensively summarizes the development of supramolecular cages as carriers and channels for cargo transport in abiotic and biological systems.

Cited by 6 publications

References 116 publications

Ring‐Size Control and Guest‐Induced Circularly Polarized Luminescence in Heteroleptic Pd3A3B3 and Pd4A4B4 Assemblies

Ring‐Size Control and Guest‐Induced Circularly Polarized Luminescence in Heteroleptic Pd3A3B3 and Pd4A4B4 Assemblies

Orientational Compatibility Modulation of Ligands in Low‐Symmetry Multi‐Cavity Discrete Coordination Cages by Neighbouring Cage Participation

Ring‐Size Control and Guest‐Induced Circularly Polarized Luminescence in Heteroleptic Pd3A3B3 and Pd4A4B4 Assemblies

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Product

Resources

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Ring‐Size Control and Guest‐Induced Circularly Polarized Luminescence in Heteroleptic Pd₃A₃B₃ and Pd₄A₄B₄ Assemblies

Ring‐Size Control and Guest‐Induced Circularly Polarized Luminescence in Heteroleptic Pd₃A₃B₃ and Pd₄A₄B₄ Assemblies

Ring‐Size Control and Guest‐Induced Circularly Polarized Luminescence in Heteroleptic Pd₃A₃B₃ and Pd₄A₄B₄ Assemblies