Facile Fabrication of Recyclable Robust Noncovalent Porous Crystals from Low-symmetry Helicene Derivative

Overview

Journal Nat Commun

Specialty Biology

Date 2024 Jun 27

PMID 38937477

Authors

Guoli Zhang

Jian Zhang

Yu Tao

Fuwei Gan

Geyu Lin

Juncong Liang

Chengshuo Shen

Yuebiao Zhang

Huibin Qiu

Affiliations

Soon will be listed here.

Abstract

Porous frameworks constructed via noncovalent interactions show wide potential in molecular separation and gas adsorption. However, it remains a major challenge to prepare these materials from low-symmetry molecular building blocks. Herein, we report a facile strategy to fabricate noncovalent porous crystals through modular self-assembly of a low-symmetry helicene racemate. The P and M enantiomers in the racemate first stack into right- and left-handed triangular prisms, respectively, and subsequently the two types of prisms alternatively stack together into a hexagonal network with one-dimensional channels with a diameter of 14.5 Å. Remarkably, the framework reveals high stability upon heating to 275 °C, majorly due to the abundant π-interactions between the complementarily engaged helicene building blocks. Such porous framework can be readily prepared by fast rotary evaporation, and is easy to recycle and repeatedly reform. The refined porous structure and enriched π-conjugation also favor the selective adsorption of a series of small molecules.

Citing Articles

Theoretical Study on Vibrationally Resolved Electronic Spectra of Chiral Nanographenes.

Ma Y, Feng X, Yu W, Shen C Molecules. 2024; 29(17).

PMID: 39274847 PMC: 11396777. DOI: 10.3390/molecules29173999.

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