Sub-10 nm Scale Lamellar Structures with a High Degree of Long-Range Order Fabricated by Orthogonal Self-Assembly of Crown Ether/Secondary Dialkylammonium Recognition and Metal···Metal/π-π Interactions

Jun Wang; Lijie Li; Weili Yang; Zihao Yan; Yufeng Zhou; Binghua Wang; Bin Zhang; Weifeng Bu

doi:10.1021/acsmacrolett.9b00397

Sub-10 nm Scale Lamellar Structures with a High Degree of Long-Range Order Fabricated by Orthogonal Self-Assembly of Crown Ether/Secondary Dialkylammonium Recognition and Metal···Metal/π-π Interactions

ACS Macro Lett. 2019 Aug 20;8(8):1012-1016. doi: 10.1021/acsmacrolett.9b00397. Epub 2019 Jul 29.

Authors

Jun Wang¹, Lijie Li¹, Weili Yang¹, Zihao Yan¹, Yufeng Zhou², Binghua Wang², Bin Zhang², Weifeng Bu^{1

3}

Affiliations

¹ State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province, and College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, China.
² School of Materials Science and Engineering, Zhengzhou University, Zhengzhou, 450002, China.
³ State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, 730000, China.

PMID: 35619497
DOI: 10.1021/acsmacrolett.9b00397

Abstract

We here present an orthogonal self-assembly strategy to fabricate a series of metallosupramolecular polymers by coupling planar platinum(II) complexes and starlike poly(ε-caprolactone), through Pt···Pt/π-π interactions and host-guest recognition between secondary dialkylammonium salts and crown ether groups. The solid metallosupramolecular polymers exhibit sub-10 nm scale lamellar structures and one of them occupies an extraordinary degree of long-range order. The platinum(II) complexes can be regarded as an individual supramolecular block to microphase segregate the polymeric segment. Moreover, the metallosupramolecular polymers show intense luminescence and appreciable proton conductivity, originating from these two supramolecular connection modes, respectively. This work paves the way for fabricating metallosupramolecular polymers showing both highly ordered nanostructures and multifunctional properties.