1
|
Pearce N, Reynolds KEA, Kayal S, Sun XZ, Davies ES, Malagreca F, Schürmann CJ, Ito S, Yamano A, Argent SP, George MW, Champness NR. Selective photoinduced charge separation in perylenediimide-pillar[5]arene rotaxanes. Nat Commun 2022; 13:415. [PMID: 35058440 PMCID: PMC8776946 DOI: 10.1038/s41467-022-28022-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Accepted: 12/22/2021] [Indexed: 12/11/2022] Open
Abstract
The ability to control photoinduced charge transfer within molecules represents a major challenge requiring precise control of the relative positioning and orientation of donor and acceptor groups. Here we show that such photoinduced charge transfer processes within homo- and hetero-rotaxanes can be controlled through organisation of the components of the mechanically interlocked molecules, introducing alternative pathways for electron donation. Specifically, studies of two rotaxanes are described: a homo[3]rotaxane, built from a perylenediimide diimidazolium rod that threads two pillar[5]arene macrocycles, and a hetero[4]rotaxane in which an additional bis(1,5-naphtho)-38-crown-10 (BN38C10) macrocycle encircles the central perylenediimide. The two rotaxanes are characterised by a combination of techniques including electron diffraction crystallography in the case of the hetero[4]rotaxane. Cyclic voltammetry, spectroelectrochemistry, and EPR spectroscopy are employed to establish the behaviour of the redox states of both rotaxanes and these data are used to inform photophysical studies using time-resolved infra-red (TRIR) and transient absorption (TA) spectroscopies. The latter studies illustrate the formation of a symmetry-breaking charge-separated state in the case of the homo[3]rotaxane in which charge transfer between the pillar[5]arene and perylenediimide is observed involving only one of the two macrocyclic components. In the case of the hetero[4]rotaxane charge separation is observed involving only the BN38C10 macrocycle and the perylenediimide leaving the pillar[5]arene components unperturbed.
Collapse
Affiliation(s)
- Nicholas Pearce
- School of Chemistry, University of Birmingham, Edgbaston, Birmingham, B15 2TT, UK
| | | | - Surajit Kayal
- School of Chemistry, University of Nottingham, University Park, Nottingham, NG7 2RD, UK
| | - Xue Z Sun
- School of Chemistry, University of Nottingham, University Park, Nottingham, NG7 2RD, UK
| | - E Stephen Davies
- School of Chemistry, University of Nottingham, University Park, Nottingham, NG7 2RD, UK
| | - Ferdinando Malagreca
- School of Chemistry, University of Nottingham, University Park, Nottingham, NG7 2RD, UK
| | | | - Sho Ito
- Rigaku Corporation, 3-9-12, Matsubara, Akishima, Tokyo, 196-8666, Japan
| | - Akihito Yamano
- Rigaku Corporation, 3-9-12, Matsubara, Akishima, Tokyo, 196-8666, Japan
| | - Stephen P Argent
- School of Chemistry, University of Nottingham, University Park, Nottingham, NG7 2RD, UK
| | - Michael W George
- School of Chemistry, University of Nottingham, University Park, Nottingham, NG7 2RD, UK
| | - Neil R Champness
- School of Chemistry, University of Birmingham, Edgbaston, Birmingham, B15 2TT, UK.
| |
Collapse
|
2
|
Wiloch MZ, Kuna E, Kosiorek S, Sashuk V, Jönsson‐Niedziółka M. Spectroelectrochemical Behaviour of 1,4‐Dimethoxypillar[5]arene (P5A) and its Monomer in Different Organic Solvents. ChemElectroChem 2021. [DOI: 10.1002/celc.202100257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Magdalena Z. Wiloch
- Institute of Physical Chemistry Polish Academy of Sciences Kasprzaka 44/52 01-224 Warsaw Poland
| | - Ewelina Kuna
- Institute of Physical Chemistry Polish Academy of Sciences Kasprzaka 44/52 01-224 Warsaw Poland
| | - Sandra Kosiorek
- Institute of Physical Chemistry Polish Academy of Sciences Kasprzaka 44/52 01-224 Warsaw Poland
| | - Volodymyr Sashuk
- Institute of Physical Chemistry Polish Academy of Sciences Kasprzaka 44/52 01-224 Warsaw Poland
| | | |
Collapse
|
3
|
Cao S, Zhou L, Liu C, Zhang H, Zhao Y, Zhao Y. Pillararene-based self-assemblies for electrochemical biosensors. Biosens Bioelectron 2021; 181:113164. [PMID: 33744670 DOI: 10.1016/j.bios.2021.113164] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2021] [Revised: 03/06/2021] [Accepted: 03/09/2021] [Indexed: 11/30/2022]
Abstract
The ingenious design and synthesis of novel macrocycles bring out renewed vigor of supramolecular chemistry in the past decade. As an intriguing class of macrocycles, pillararene and pillararene-based functional materials that are constructed through the noncovalent bond self-assembly approach have been undergoing a rapid growth, benefiting from their unique structures and physiochemical properties. This review elaborates recent significant advances of electrochemical studies based on pillararene systems. Fundamental electrochemical behavior of pillar[n]arene[m]quinone and pillararene-based self-assemblies as well as their applications in electrochemical biosensors are highlighted. In addition, the advantages and functions of pillararene self-assembly systems resulted from the unique molecular architectures are analyzed. Finally, current challenges and future development tendency in this burgeoning field are discussed from the viewpoint of both fundamental research and applications. Overall, this review not only manifests the main development vein of pillararene-based electrochemical systems, but also conquers a solid foundation for their further bioelectrochemical applications.
Collapse
Affiliation(s)
- Shuai Cao
- School of Chemical Engineering and Technology, Xi'an Jiaotong University, Xi'an, Shaanxi, 710049, China
| | - Le Zhou
- School of Chemical Engineering and Technology, Xi'an Jiaotong University, Xi'an, Shaanxi, 710049, China
| | - Chang Liu
- School of Chemical Engineering and Technology, Xi'an Jiaotong University, Xi'an, Shaanxi, 710049, China
| | - Huacheng Zhang
- School of Chemical Engineering and Technology, Xi'an Jiaotong University, Xi'an, Shaanxi, 710049, China.
| | - Yuxin Zhao
- School of Chemical Engineering and Technology, Xi'an Jiaotong University, Xi'an, Shaanxi, 710049, China.
| | - Yanli Zhao
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, 637371, Singapore.
| |
Collapse
|