Issue 34, 2023

Supramolecular polymerization of chiral platinum(ii) complexes: transformable nanoassemblies and their amplified circularly polarized luminescence

Abstract

Herein, we report four pairs of enantiomeric platinum(II) complexes D/L-Pt-1–Pt-4 with minor structural variations that have been found to lead to distinct self-assembly behaviors and form various well-defined nanostructures. Notably, Pt-1 exhibits polymorphic self-assembly with well-defined nanostructures, such as nanorings, nanotwists, dendritic twists, and microbelts, in various conditions through the interplay of different non-covalent interactions. Importantly, two pairs of enantiomers D/L-Pt-1–Pt-2 show significantly amplified effects for circular dichroism (CD) and circularly polarized luminescence (CPL) in their corresponding nanoassemblies. Moreover, the self-assembly process can be governed by the Pt···Pt/π–π stacking, the solvophobic interactions, and electrostatic repulsion provided by the positively charged tridentate cyclometalated platinum(II) moieties. The detailed supramolecular polymerization pathway was systematically investigated by spectroscopy, X-ray single-crystal diffraction, and electron microscopy studies.

Graphical abstract: Supramolecular polymerization of chiral platinum(ii) complexes: transformable nanoassemblies and their amplified circularly polarized luminescence

Supplementary files

Article information

Article type
Paper
Submitted
06 iyl 2023
Accepted
03 avq 2023
First published
03 avq 2023

J. Mater. Chem. C, 2023,11, 11671-11680

Supramolecular polymerization of chiral platinum(II) complexes: transformable nanoassemblies and their amplified circularly polarized luminescence

X. Zhu, Z. Wang, Y. Jia, F. Yang, Y. Zhang, S. Zhao and X. He, J. Mater. Chem. C, 2023, 11, 11671 DOI: 10.1039/D3TC02375C

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