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Hou J, Liao J, Feng Y, Feringa BL, Chen J, Li H, Zhou G. Binary Supramolecular Chirality "1/0" Switched by Hierarchical Photoisomerization of a Flower-Like Compound with a Binaphthol Core and Alkyl-Functionalized Azobenzene Side Chains. Chempluschem 2020; 85:1104-1110. [PMID: 32133756 DOI: 10.1002/cplu.202000049] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2020] [Revised: 02/17/2020] [Indexed: 01/03/2023]
Abstract
Chiral supramolecular assemblies are abundant in nature, but controlling the chirality of artificial systems still remains a challenge. In this work, we developed a system where supramolecular chirality can be controlled between chiral and achiral states, namely a chiral "1/0" switch using a flower-like azobenzene compound with a binaphthol core. Upon photoisomerization by ultraviolet irradiation, the terminal alkyl tails envelop the chiral "centre" with a reduction in the dihedral angle of the binaphthol moiety from 76.1° to 61.4°, like "closing petals". In the doped liquid crystal E7 matrix, this hierarchical conformational transition prevents the transfer of chirality to the host liquid crystal, resulting in a degradation from cholesteric phase (HTP value: 13.84 μm-1 ) to an achiral nematic phase.
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Affiliation(s)
- Jiaxin Hou
- Guangdong Provincial Key Laboratory of Optical Information Materials and Technology & Institute of Electronic Paper Displays South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou, 510006, P. R. China.,National Center for International Research on Green Optoelectronics, South China Normal University, Guangzhou, 510006, P. R. China
| | - Jinglun Liao
- Guangdong Provincial Key Laboratory of Optical Information Materials and Technology & Institute of Electronic Paper Displays South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou, 510006, P. R. China.,National Center for International Research on Green Optoelectronics, South China Normal University, Guangzhou, 510006, P. R. China
| | - Yancong Feng
- Guangdong Provincial Key Laboratory of Optical Information Materials and Technology & Institute of Electronic Paper Displays South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou, 510006, P. R. China.,National Center for International Research on Green Optoelectronics, South China Normal University, Guangzhou, 510006, P. R. China
| | - Ben L Feringa
- Guangdong Provincial Key Laboratory of Optical Information Materials and Technology & Institute of Electronic Paper Displays South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou, 510006, P. R. China.,National Center for International Research on Green Optoelectronics, South China Normal University, Guangzhou, 510006, P. R. China
| | - Jiawen Chen
- Guangdong Provincial Key Laboratory of Optical Information Materials and Technology & Institute of Electronic Paper Displays South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou, 510006, P. R. China.,National Center for International Research on Green Optoelectronics, South China Normal University, Guangzhou, 510006, P. R. China
| | - Hao Li
- Guangdong Provincial Key Laboratory of Optical Information Materials and Technology & Institute of Electronic Paper Displays South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou, 510006, P. R. China.,National Center for International Research on Green Optoelectronics, South China Normal University, Guangzhou, 510006, P. R. China
| | - Guofu Zhou
- Guangdong Provincial Key Laboratory of Optical Information Materials and Technology & Institute of Electronic Paper Displays South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou, 510006, P. R. China.,National Center for International Research on Green Optoelectronics, South China Normal University, Guangzhou, 510006, P. R. China
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Campanelli AR, Domenicano A. Structural variation, π-charge transfer, and transmission of electronic substituent effects through the carbon-carbon triple bond in β-substituted phenylacetylenes: a quantum chemical study, and a comparison with (E)-β-substituted styrenes. Struct Chem 2018. [DOI: 10.1007/s11224-018-1199-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Shi Z, Kwak G, Jin YJ, Teraguchi M, Aoki T, Kaneko T. Solvent-tuned dual emission of a helical poly[3,5-bis(hydroxymethyl)phenylacetylene] connected with a π-conjugated chromophore. Polym J 2018. [DOI: 10.1038/s41428-018-0045-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Sadlej-Sosnowska N. How Far Does Substituents’ Impact Reach? The Transmission of Electronic Substituent Effects along the Polyphenylene Chain and the Evaluation of Through-Bond and Through-Space Contributions. J Phys Chem A 2016; 120:6477-84. [DOI: 10.1021/acs.jpca.6b05429] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Campanelli AR, Domenicano A, Hnyk D. Transmission of Electronic Substituent Effects across the 1,12-Dicarba-closo-dodecaborane Cage: A Computational Study Based on Structural Variation, Atomic Charges, and 13C NMR Chemical Shifts. J Phys Chem A 2014; 119:205-14. [DOI: 10.1021/jp5106407] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
| | - Aldo Domenicano
- Department of Physical and
Chemical Sciences, University of L’Aquila, 67100 L’Aquila, Italy
| | - Drahomír Hnyk
- Institute of Inorganic Chemistry, Academy of Sciences of the Czech Republic, 250
68 Husinec-Řež, Czech Republic
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Campanelli AR, Domenicano A. A computational study of 4-substituted biphenyls in their minimum energy conformation: twist angles, structural variation, and substituent effects. Struct Chem 2013. [DOI: 10.1007/s11224-013-0242-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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