Photocontrolled morphological conversion and chiral transfer of a snowflake-like supramolecular assembly based on azobenzene-bridged bis(dibenzo-24-crown-8) and a cholesterol derivative

Hui-Juan Wang; Heng-Yi Zhang; Huang Wu; Xian-Yin Dai; Pei-Yu Li; Yu Liu

doi:10.1039/c9cc01874c

Photocontrolled morphological conversion and chiral transfer of a snowflake-like supramolecular assembly based on azobenzene-bridged bis(dibenzo-24-crown-8) and a cholesterol derivative

Chem Commun (Camb). 2019 Apr 11;55(31):4499-4502. doi: 10.1039/c9cc01874c.

Authors

Hui-Juan Wang¹, Heng-Yi Zhang, Huang Wu, Xian-Yin Dai, Pei-Yu Li, Yu Liu

Affiliation

¹ Department of Chemistry, State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, P. R. China. hyzhang@nankai.edu.cn yuliu@nankai.edu.cn.

PMID: 30919856
DOI: 10.1039/c9cc01874c

Abstract

A snowflake-like supramolecular clockwise-helical assembly was fabricated via the host-guest interaction of trans-azobenzene-bridged bis(dibenzo-24-crown-8) (trans-1) and a cholesterol derivative, while a snowflake-like supramolecular non-helical assembly can be obtained upon complexation of cis-1 after UV-irradiation, accompanying the disappearance of circular dichroism signals from the azobenzene zone of 1.