|
1
|
Dutta Choudhury S. Multiple Effects of an Anionic Cyclodextrin Macrocycle on the Reversible Isomerization of a Photoactive Guest Dye. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:14819-14826. [PMID: 36398364 DOI: 10.1021/acs.langmuir.2c02470] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Understanding and controlling the reversible isomerization of photoactive molecules in order to obtain a tunable optical response is desirable for many photofunctional applications. This study describes the interesting effects of an anionic cyclodextrin host (sulfated-βCD, SCD) on the photoisomerization and protonation equilibrium of an important hemicyanine dye (trans-4-[4-(dimethylamino)styryl]-1-methylpyridinium iodide, DSP). The SCD host assists in unlocking the photoisomerization potential of DSP by promoting protonation of the dye. It also assists in stabilizing the cis isomer of the protonated dye, thereby significantly delaying the reverse cis to trans isomerization of DSPH+. Furthermore, the interplay of both hydrophobic and electrostatic interactions in the complex formation of SCD with DSPH+ makes the reverse cis to trans isomerization of DSPH+ amenable to influence by the added salt. The stimuli-responsive reversible isomerization of SCD-DSPH+ is an interesting case from the perspective of chemical sensing or light operated functional materials with host-guest systems.
Collapse
Affiliation(s)
- Sharmistha Dutta Choudhury
- Radiation & Photochemistry Division, Bhabha Atomic Research Centre, Mumbai400 085, India
- Homi Bhabha National Institute, Training School Complex, Anushaktinagar, Mumbai400094, India
| |
Collapse
|
|
2
|
Weng T, Zhang K, Wu B, Chen X, Zou Q, Zeng T, Zhu L. Orthogonally Incorporating Dual‐Fluorescence Control into Gated Photochromism for Multifunctional Molecular Switching. Chemistry 2019; 25:15281-15287. [DOI: 10.1002/chem.201903759] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2019] [Revised: 09/08/2019] [Indexed: 11/11/2022]
Affiliation(s)
- Taoyu Weng
- Shanghai Key Laboratory of Materials Protection and Advanced Materials in Electric PowerShanghai University of, Electric Power Shanghai 200090 China
- State Key Laboratory of Molecular Engineering of PolymersDepartment of Macromolecular ScienceFudan University Shanghai 200438 China
| | - Kai Zhang
- Shanghai Key Laboratory of Materials Protection and Advanced Materials in Electric PowerShanghai University of, Electric Power Shanghai 200090 China
| | - Bin Wu
- State Key Laboratory of Molecular Engineering of PolymersDepartment of Macromolecular ScienceFudan University Shanghai 200438 China
| | - Xuanying Chen
- Shanghai Key Laboratory of Materials Protection and Advanced Materials in Electric PowerShanghai University of, Electric Power Shanghai 200090 China
| | - Qi Zou
- Shanghai Key Laboratory of Materials Protection and Advanced Materials in Electric PowerShanghai University of, Electric Power Shanghai 200090 China
| | - Tao Zeng
- Shanghai Key Laboratory of Engineering Materials Application and EvaluationShanghai Research Institute of Materials Shanghai 200437 China
| | - Liangliang Zhu
- State Key Laboratory of Molecular Engineering of PolymersDepartment of Macromolecular ScienceFudan University Shanghai 200438 China
| |
Collapse
|
|
3
|
Liu D, Yu B, Su X, Wang X, Zhang YM, Li M, Zhang SXA. Photo-/Baso-Chromisms and the Application of a Dual-Addressable Molecular Switch. Chem Asian J 2019; 14:2838-2845. [PMID: 31233268 DOI: 10.1002/asia.201900600] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2019] [Revised: 06/17/2019] [Indexed: 12/20/2022]
Abstract
Two typical molecular switches of spiropyran (SP) and benzoxazine (OX) were fused by sharing an indole to achieve a new dual-addressable molecular switch (SP-OX-NO2 ). Through proper molecular modification with NO2 , the transformation from merocyanine (MC) to ring-closed SP or ring-closed OX can be controlled separately with visible light or base stimuli in solution, respectively, and these processes are verified by UV-vis and NMR spectroscopy as well as control experiments. The cis-merocyanine (cis-MC) form is involved in the basochromic process in solution. DFT calculation suggests that the bidirectional switching property of the fused SP-OX molecular switch can be controlled separately, when the OX isomer is more stable than the deprotonated SP isomer. Because of the significant color variations in solution, the simple dual-addressable switch has been further successfully applied to construct a multicolor reversible display on paper.
Collapse
Affiliation(s)
- Danyang Liu
- State Key Lab of Supramolecular Structure and Materials, College of Chemistry, Jilin University, 2699 Qianjin street, Changchun, 130012, P. R. China
| | - Binhong Yu
- State Key Lab of Supramolecular Structure and Materials, College of Chemistry, Jilin University, 2699 Qianjin street, Changchun, 130012, P. R. China
| | - Xing Su
- State Key Lab of Supramolecular Structure and Materials, College of Chemistry, Jilin University, 2699 Qianjin street, Changchun, 130012, P. R. China
| | - Xiaojun Wang
- State Key Lab of Supramolecular Structure and Materials, College of Chemistry, Jilin University, 2699 Qianjin street, Changchun, 130012, P. R. China
| | - Yu-Mo Zhang
- State Key Lab of Supramolecular Structure and Materials, College of Chemistry, Jilin University, 2699 Qianjin street, Changchun, 130012, P. R. China
| | - Minjie Li
- State Key Lab of Supramolecular Structure and Materials, College of Chemistry, Jilin University, 2699 Qianjin street, Changchun, 130012, P. R. China
| | - Sean Xiao-An Zhang
- State Key Lab of Supramolecular Structure and Materials, College of Chemistry, Jilin University, 2699 Qianjin street, Changchun, 130012, P. R. China
| |
Collapse
|