Room temperature chiral reorganization of interfacial assembly of achiral double-decker phthalocyanine

Physical Chemistry Chemical Physics : PCCP
Xiqian WangJianzhuang Jiang

Abstract

The modulation of solid-state supramolecular assemblies at room temperature is still challenging even though it potentially has very important application prospects. Herein, based on the possibility of overall conformational changes in double-decker phthalocyanine, the room temperature chiral reorganization of solid-state assemblies was investigated. LS (Langmuir-Schaefer) films of achiral double-decker cerium phthalocyanine were fabricated via air-water interfacial assembly and the dependence of supramolecular chirality on the assembly of the achiral double-decker molecules was identified. Interestingly, the corresponding supramolecular chirality in the solid-state can be reorganized with amplification of the Cotton effect and formation of helical nanostructures upon storage at room temperature and atmospheric pressure. These results open new perspectives for the regulation of supramolecular assemblies.

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Citations

Mar 18, 2020·Chemical Record : an Official Publication of the Chemical Society of Japan ... [et Al.]·Dinesh N NadimetlaSheshanath V Bhosale
Mar 20, 2020·Advanced Materials·Katsuhiko ArigaTakashi Uemura

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Methods Mentioned

BETA
linear dichroism
atomic force microscopy
AFM
X-ray
XRD

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