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Huang KY, Li GY, Liang X, Li K, Li L, Cui G, Liu XY. "On-the-Fly" Nonadiabatic Dynamics Simulation on the Ultrafast Photoisomerization of a Molecular Photoswitch Iminothioindoxyl: An RMS-CASPT2 Investigation. J Phys Chem A 2024. [PMID: 39145596 DOI: 10.1021/acs.jpca.4c03685] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/16/2024]
Abstract
Iminothioindoxyl (ITI) is a new class of photoswitch that exhibits many excellent properties including well-separated absorption bands in the visible region for both conformers, ultrafast Z to E photoisomerization as well as the millisecond reisomerization at room temperature for the E isomer, and switchable ability in both solids and various solvents. However, the underlying ultrafast photoisomerization mechanism at the atomic level remains unclear. In this work, we have employed a combination of high-level RMS-CASPT2-based static electronic structure calculations and nonadiabatic dynamics simulations to investigate the ultrafast photoisomerization dynamics of ITI. Based on the minimum-energy structures, minimum-energy conical intersections, linear interpolation internal coordinate paths, and nonadiabatic dynamics simulations, the overall photoisomerization scenario of ITI upon excitation is established. Upon excitation around 416 nm, the molecule will be excited to the S2 state considering its close energy to the experimentally measured absorption maximum and larger oscillator strength, from which ultrafast decay of S2 to S1 state can take place efficiently with a time constant of 62 fs. However, the photoisomerization is not likely to complete in the S2 state since the dihedral associated with the Z to E isomerization changes little during the relaxation. Upon relaxing to the S1 state, the molecule will decay to the S0 state ultrafast with a time constant of 232 fs. In contrast, the decay of the S1 state is important for the isomerization considering that the dihedral related to the isomerization of the hopping structures is close to 90°. Therefore, the S1/S0 intersection region should be important for the isomerization of ITI. Arriving at the S0 state, the molecule can either go back to the original Z reactant or isomerize to the E products. At the end of the 500 fs simulation time, the E configuration accounts for nearly 37% of the final structures. Moreover, the photoisomerization mechanism is different from the isomerization mechanism in the ground state; i.e., instead of the inversion mechanism in the ground state, the photoisomerization prefers the rotation mechanism. Our results not only agree well with previous experimental studies but also provide some novel insights that could be helpful for future improvements in the performance of the ITI photoswitches.
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Affiliation(s)
- Kai-Yue Huang
- College of Chemistry and Material Science, Sichuan Normal University, Chengdu 610068, China
| | - Gao-Yi Li
- College of Chemistry and Material Science, Sichuan Normal University, Chengdu 610068, China
| | - Xiaoqin Liang
- College of Chemistry and Material Science, Sichuan Normal University, Chengdu 610068, China
| | - Kai Li
- College of Chemistry and Material Science, Sichuan Normal University, Chengdu 610068, China
| | - Laicai Li
- College of Chemistry and Material Science, Sichuan Normal University, Chengdu 610068, China
| | - Ganglong Cui
- Key Laboratory of Theoretical and Computational Photochemistry, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Xiang-Yang Liu
- College of Chemistry and Material Science, Sichuan Normal University, Chengdu 610068, China
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2
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Msellem P, Dekthiarenko M, Hadj Seyd N, Vives G. Switchable molecular tweezers: design and applications. Beilstein J Org Chem 2024; 20:504-539. [PMID: 38440175 PMCID: PMC10910529 DOI: 10.3762/bjoc.20.45] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Accepted: 02/12/2024] [Indexed: 03/06/2024] Open
Abstract
Switchable molecular tweezers are a unique class of molecular switches that, like their macroscopic analogs, exhibit mechanical motion between an open and closed conformation in response to stimuli. Such systems constitute an essential component of artificial molecular machines. This review will present selected examples of switchable molecular tweezers and their potential applications. The first part will be devoted to chemically responsive tweezers, including stimuli such as pH, metal coordination, and anion binding. Then, redox-active and photochemical tweezers will be presented.
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Affiliation(s)
- Pablo Msellem
- Sorbonne Université, UMR CNRS 8232, Institut Parisien de Chimie Moléculaire, 4 place Jussieu, 75005, Paris, France
| | - Maksym Dekthiarenko
- Sorbonne Université, UMR CNRS 8232, Institut Parisien de Chimie Moléculaire, 4 place Jussieu, 75005, Paris, France
| | - Nihal Hadj Seyd
- Sorbonne Université, UMR CNRS 8232, Institut Parisien de Chimie Moléculaire, 4 place Jussieu, 75005, Paris, France
| | - Guillaume Vives
- Sorbonne Université, UMR CNRS 8232, Institut Parisien de Chimie Moléculaire, 4 place Jussieu, 75005, Paris, France
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3
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Ko S, Kim JY, Park JY, Jung YJ, Choi MJ, Jin KS, Kim Y, Lim YB, Jeong WJ. Modulating the folding and binding of peptides using a stimuli-responsive molecular tweezer. Chem Sci 2023; 14:9600-9607. [PMID: 37712040 PMCID: PMC10498507 DOI: 10.1039/d3sc03758d] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Accepted: 08/06/2023] [Indexed: 09/16/2023] Open
Abstract
This study presents the development of a β-hairpin (tryptophan zipper, Trpzip)-based molecular tweezer (MT) that can control the folding and binding of α-helical peptides. When an α-helix isolated from the p53 protein was conjugated with Trpzip in an optimized macrocyclic structure, the folded β-hairpin stabilized the helix conformation through the side chain-to-side chain stapling strategy, which notably enhanced target (hDM2) affinity of the peptide. On the other hand, the helicity and binding affinity were significantly reduced when the hairpin was unfolded by a redox stimulus. This stimulus-responsive property was translated into the effective capture and release of model multivalent biomaterials, hDM2-gold nanoparticle conjugates. Since numerous protein interactions are mediated by α-helical peptides, these results suggest that the β-hairpin-based MT holds great potential to be utilized in various biomedical applications, such as protein interaction inhibition and cancer biomarker (e.g., circulating tumor cells and exosomes) detection.
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Affiliation(s)
- Sooho Ko
- Department of Materials Science and Engineering, Yonsei University Seoul 03722 Republic of Korea
| | - Joo-Young Kim
- Department of Biological Sciences and Bioengineering, Inha University Incheon 22212 Republic of Korea
| | - Jung Yeon Park
- KU-KIST Graduate School of Converging Science and Technology, Department of Integrative Energy Engineering, Korea University Seoul 02841 Republic of Korea
| | - You-Jin Jung
- Department of Materials Science and Engineering, Yonsei University Seoul 03722 Republic of Korea
| | - Min-Jae Choi
- Department of Chemical & Biochemical Engineering, Dongguk University Seoul 06420 Republic of Korea
| | - Kyeong Sik Jin
- Pohang Accelerator Laboratory, Pohang University of Science and Technology Pohang 790-784 Republic of Korea
| | - Yongju Kim
- KU-KIST Graduate School of Converging Science and Technology, Department of Integrative Energy Engineering, Korea University Seoul 02841 Republic of Korea
| | - Yong-Beom Lim
- Department of Materials Science and Engineering, Yonsei University Seoul 03722 Republic of Korea
| | - Woo-Jin Jeong
- Department of Biological Sciences and Bioengineering, Inha University Incheon 22212 Republic of Korea
- Department of Biological Engineering, Inha University Incheon 22212 Republic of Korea
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4
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Zitzmann M, Hampel F, Dube H. A cross-conjugation approach for high-performance diaryl-hemithioindigo photoswitches. Chem Sci 2023; 14:5734-5742. [PMID: 37265733 PMCID: PMC10231315 DOI: 10.1039/d2sc06939c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Accepted: 04/28/2023] [Indexed: 06/03/2023] Open
Abstract
Diaryl-hemithioindigos (diaryl-HTIs) are derivatives of a novel class of highly functionalized indigoid chromophores. In this work a systematic study of the electronic effects on their photoswitching reveals the design principles for achieving an excellent property profile. Two key elements need to be invoked for perfect diaryl-HTI performance, first introduction of strong electron donors and second establishment of cross-conjugation. The resulting photoswitches combine high thermal stability, large extinction coefficients, red-light responsiveness, pronounced photochromism, and strong isomer accumulation in the photostationary states with precise geometry changes. By using the inherent basicity of their strong electron donor moiety, diaryl-HTIs can be rendered into very potent tools for molecular logic applications. We demonstrate a variety of binary logic setups as well as sophisticated three- and four-input keypad locks for sequential logic operations. Three distinct states and up to four different stimuli are invoked for this multi-level molecular information processing. Diaryl-HTIs have thus entered the stage as very capable and promising photoswitch motives for anyone interested in reversible visible- and red-light as well as multi-stimuli responsive molecular behavior.
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Affiliation(s)
- Max Zitzmann
- Friedrich-Alexander-Universität Erlangen-Nürnberg, Department of Chemistry and Pharmacy Nikolaus-Fiebiger-Str. 10 91058 Erlangen Germany
| | - Frank Hampel
- Friedrich-Alexander-Universität Erlangen-Nürnberg, Department of Chemistry and Pharmacy Nikolaus-Fiebiger-Str. 10 91058 Erlangen Germany
| | - Henry Dube
- Friedrich-Alexander-Universität Erlangen-Nürnberg, Department of Chemistry and Pharmacy Nikolaus-Fiebiger-Str. 10 91058 Erlangen Germany
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5
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Nakamura A, Rao F, Ukiya K, Matsunaga R, Ohira SI, Maegawa T. A concise synthesis of thioaurones via NBS-induced cyclization of MOM-protected 2'-mercaptochalcones. Org Biomol Chem 2023; 21:1134-1137. [PMID: 36484376 DOI: 10.1039/d2ob01995g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2022]
Abstract
A mild and efficient approach for the synthesis of thioaurones via NBS-induced cyclization of methoxymethyl-protected mercapto-chalcones has been developed. This simple method is highly functional group tolerant and provides straightforward access to thioaurones in good to high yields.
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Affiliation(s)
- Akira Nakamura
- School of Pharmaceutical Sciences, Kindai University, 3-4-1 Kowakae, Higashi-Osaka, Osaka 577-8502, Japan.
| | - Fei Rao
- School of Pharmaceutical Sciences, Kindai University, 3-4-1 Kowakae, Higashi-Osaka, Osaka 577-8502, Japan.
| | - Kazuchika Ukiya
- School of Pharmaceutical Sciences, Kindai University, 3-4-1 Kowakae, Higashi-Osaka, Osaka 577-8502, Japan.
| | - Riko Matsunaga
- School of Pharmaceutical Sciences, Kindai University, 3-4-1 Kowakae, Higashi-Osaka, Osaka 577-8502, Japan.
| | - Shin-Ichiro Ohira
- School of Pharmaceutical Sciences, Kindai University, 3-4-1 Kowakae, Higashi-Osaka, Osaka 577-8502, Japan.
| | - Tomohiro Maegawa
- School of Pharmaceutical Sciences, Kindai University, 3-4-1 Kowakae, Higashi-Osaka, Osaka 577-8502, Japan.
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6
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Josef V, Hampel F, Dube H. Heterocyclic Hemithioindigos: Highly Advantageous Properties as Molecular Photoswitches. Angew Chem Int Ed Engl 2022; 61:e202210855. [PMID: 36040861 PMCID: PMC9826360 DOI: 10.1002/anie.202210855] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2022] [Indexed: 01/11/2023]
Abstract
A survey of heterocyclic hemithioindigo photoswitches is presented identifying a number of structural motives with outstanding property profiles. The highly sought-after combination of pronounced color change, quantitative switching in both directions, exceptional high quantum yields, and tunable high thermal stability of metastable states can be realized with 4-imidazole, 2-pyrrole, and 3-indole-based derivatives. In the former, an unusual preorganization using isomer selective chalcogen- and hydrogen bonding allows to precisely control geometry changes and tautomerism upon switching. Heterocyclic hemithioindigos thus represent highly promising photoswitches with advanced capabilities that will be of great value to anyone interested in establishing defined and reversible control at the molecular level.
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Affiliation(s)
- Verena Josef
- Friedrich-Alexander Universität Erlangen-NürnbergDepartment of Chemistry and PharmacyNikolaus-Fiebiger-Str. 1091058ErlangenGermany
| | - Frank Hampel
- Friedrich-Alexander Universität Erlangen-NürnbergDepartment of Chemistry and PharmacyNikolaus-Fiebiger-Str. 1091058ErlangenGermany
| | - Henry Dube
- Friedrich-Alexander Universität Erlangen-NürnbergDepartment of Chemistry and PharmacyNikolaus-Fiebiger-Str. 1091058ErlangenGermany
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7
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Wezenberg SJ. Photoswitchable molecular tweezers: isomerization to control substrate binding, and what about vice versa? Chem Commun (Camb) 2022; 58:11045-11058. [PMID: 36106956 PMCID: PMC9531670 DOI: 10.1039/d2cc04329g] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Accepted: 08/31/2022] [Indexed: 11/21/2022]
Abstract
The linkage of two identical binding motifs by a molecular photoswitch has proven to be a straightforward and versatile strategy to control substrate binding affinity by light. Stimulus control of binding properties in artificial receptors is partly inspired by the dynamic behavior of proteins and is highly attractive as it could, for example, improve extraction processes and allow (de)activation of membrane transport on demand. This feature article summarizes the development and design principles of molecular tweezers containing a molecular photoswitch as the core unit. Besides the control of binding affinity by isomerization, the effect of substrate binding on the isomerization behavior is discussed where data is available. While the latter often receives less attention, it could be of benefit in the future creation of multi-stimuli-controlled molecular switching and machine-like systems.
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Affiliation(s)
- Sander J Wezenberg
- Leiden Institute of Chemistry, Leiden University, Einsteinweg 55, 2333 CC Leiden, The Netherlands.
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8
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DiNardi RG, Douglas AO, Tian R, Price JR, Tajik M, Donald WA, Beves JE. Visible‐Light‐Responsive Self‐Assembled Complexes: Improved Photoswitching Properties by Metal Ion Coordination**. Angew Chem Int Ed Engl 2022; 61:e202205701. [PMID: 35972841 PMCID: PMC9541570 DOI: 10.1002/anie.202205701] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Indexed: 11/10/2022]
Abstract
A photoswitchable ligand based on azobenzene is self‐assembled with palladium(II) ions to form a [Pd2(E‐L)4]4+ cage. Irradiation with 470 nm light results in the near‐quantitative switching to a monomeric species [Pd(Z‐L)2]2+, which can be reversed by irradiation with 405 nm light, or heat. The photoswitching selectivity towards the metastable isomer is significantly improved upon self‐assembly, and the thermal half‐life is extended from 40 days to 850 days, a promising approach for tuning photoswitching properties.
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Affiliation(s)
- Ray G. DiNardi
- School of Chemistry UNSW Sydney Sydney NSW 2052 Australia
| | | | - Ruoming Tian
- Crystallography laboratory Mark Wainwright Analytical Centre UNSW Sydney Sydney NSW 2052 Australia
| | - Jason R. Price
- School of Chemistry UNSW Sydney Sydney NSW 2052 Australia
- ANSTO The Australian Synchrotron 800 Blackburn Rd Clayton Vic 3168 Australia
| | - Mohammad Tajik
- School of Chemistry UNSW Sydney Sydney NSW 2052 Australia
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9
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Josef V, Hampel F, Dube H. Heterocyclic Hemithioindigos: Highly Advantageous Properties as Molecular Photoswitches. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202210855] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Verena Josef
- FAU: Friedrich-Alexander-Universitat Erlangen-Nurnberg Chemistry and Pharmacy GERMANY
| | - Frank Hampel
- FAU: Friedrich-Alexander-Universitat Erlangen-Nurnberg Chemistry and Pharmacy GERMANY
| | - Henry Dube
- Friedrich-Alexander-Universitat Erlangen-Nurnberg Chemistry and Pharmacy Nikolaus-Fiebiger-Str. 10 91058 Erlangen GERMANY
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10
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DiNardi RG, Douglas AO, Tian R, Price JR, Tajik M, Donald WA, Beves JE. Visible‐Light‐Responsive Self‐Assembled Complexes: Improved Photoswitching Properties by Metal Ion Coordination**. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202205701] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Ray G. DiNardi
- School of Chemistry UNSW Sydney Sydney NSW 2052 Australia
| | | | - Ruoming Tian
- Crystallography laboratory Mark Wainwright Analytical Centre UNSW Sydney Sydney NSW 2052 Australia
| | - Jason R. Price
- School of Chemistry UNSW Sydney Sydney NSW 2052 Australia
- ANSTO The Australian Synchrotron 800 Blackburn Rd Clayton Vic 3168 Australia
| | - Mohammad Tajik
- School of Chemistry UNSW Sydney Sydney NSW 2052 Australia
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11
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Jozeliu Naitė A, Javorskis T, Vaitkevičius V, Klimavičius V, Orentas E. Fully Supramolecular Chiral Hydrogen-Bonded Molecular Tweezer. J Am Chem Soc 2022; 144:8231-8241. [PMID: 35500199 DOI: 10.1021/jacs.2c01455] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Molecular tweezers are open-ended, cavity-possessing U-shaped molecular architectures with high potential for various applications in supramolecular chemistry. Their covalent synthesis, however, is often tedious and the structures obtained lack structural responsiveness beyond the limited conformational flexibility of the scaffold. Herein we present a proof-of-concept study on the design, synthesis, assembly, and transformations of a novel supramolecular construct─a fully noncovalent molecular tweezer. The supramolecular tweezer was assembled from a set of four building blocks, composed of two identical molecular angle bars and two flat aromatic extension wings, using hydrogen bonding only. The chirality-assisted aggregation process was utilized to ensure scaffold bending directionality using enantiomerically pure bicyclic angle bars. To address the challenges associated with shifting of the equilibrium from strong cooperative narcissistic self-sorting of self-complementary angle bars in cyclic aggregates toward integrative self-sorting in molecular tweezers, a rational desymmetrization strategy was applied. The dynamic supramolecular tweezer has been shown to display rich supramolecular chemistry, allowing for stimuli-responsive change in aggregate topology and solvent-responsive supramolecular polymerization.
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Affiliation(s)
- Augustina Jozeliu Naitė
- Department of Organic Chemistry, Vilnius University, Naugarduko 24, LT-03225 Vilnius, Lithuania
| | - Tomas Javorskis
- Department of Organic Chemistry, Vilnius University, Naugarduko 24, LT-03225 Vilnius, Lithuania
| | - Vytenis Vaitkevičius
- Department of Organic Chemistry, Vilnius University, Naugarduko 24, LT-03225 Vilnius, Lithuania
| | | | - Edvinas Orentas
- Department of Organic Chemistry, Vilnius University, Naugarduko 24, LT-03225 Vilnius, Lithuania
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12
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Hisano N, Haino T. Host-Guest Complexation of Bisporphyrin Cleft and Electron-Deficient Aromatic Guests. J Org Chem 2022; 87:4001-4009. [PMID: 35085436 DOI: 10.1021/acs.joc.1c02742] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The host-guest complexation of a bisporphyrin cleft with various electron-deficient guest molecules was studied in solution and in the solid-state. X-ray crystal structures of a bisporphyrin cleft with naphthalene dianhydride and 2,4,7-trinitrofluorenone reveal that these guest molecules were located within the bisporphyrin cleft and formed ideal π-π stacking interactions in a host-guest ratio of 1:1. Isothermal titration calorimetry determined the binding constants and thermodynamic parameters for the 1:1 host-guest complexations in 1,2-dichloroethane and toluene. Two types of enthalpy-entropy compensation effects were found: (1) The tightly stacked host-guest structures restrict guest movement within the cleft, which results in significant desolvation with large intrinsic entropies. (2) The loosely bound guests maintain their molecular freedom within the bisporphyrin cleft, which leads to less desolvation with small intrinsic entropies. Chiral guest encapsulation directed the clockwise and anticlockwise twisted conformations of the bisporphyrin units, which induced bisignate CDs.
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Affiliation(s)
- Naoyuki Hisano
- Department of Chemistry, Graduate School of Science, Hiroshima University, 1-3-1, Kagamiyama, Higashi-Hiroshima 739-8526, Japan
| | - Takeharu Haino
- Department of Chemistry, Graduate School of Advanced Science and Engineering, Hiroshima University, 1-3-1, Kagamiyama, Higashi-Hiroshima 739-8526, Japan
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13
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Jang HJ, Lee S, An BJ, Song G, Jeon HG, Jeong KS. Tweezer-type binding cavity formed by the helical folding of a carbazole-pyridine oligomer. Chem Commun (Camb) 2022; 58:1410-1413. [PMID: 34994755 DOI: 10.1039/d1cc06569f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
We have synthesised a new aromatic foldamer based on the carbazole-pyridine oligomers that adopt helical conformations via dipole-dipole interactions and π-stacking between two ethynyl bond-linked monomers. This foldamer scaffold has been further modified into a synthetic receptor with a tweezer-type binding cavity outside the helical backbone upon folding, in contrast to most aromatic foldamers with internal binding cavities. The tweezer-type cavity is composed of two parallel pyrenyl planes, allowing for the intercalation of a naphthalenediimide guest via π-stacking and CH⋯O interactions, as demonstrated using its 1H NMR spectra and X-ray crystal structure.
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Affiliation(s)
- Hye Jin Jang
- Department of Chemistry, Yonsei University, Seoul 03722, Republic of Korea.
| | - Seungwon Lee
- Department of Chemistry, Yonsei University, Seoul 03722, Republic of Korea.
| | - Byung Jun An
- Department of Chemistry, Yonsei University, Seoul 03722, Republic of Korea.
| | - Geunmoo Song
- Department of Chemistry, Yonsei University, Seoul 03722, Republic of Korea.
| | - Hae-Geun Jeon
- Department of Chemistry, Yonsei University, Seoul 03722, Republic of Korea.
| | - Kyu-Sung Jeong
- Department of Chemistry, Yonsei University, Seoul 03722, Republic of Korea.
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14
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Broløs L, Klaue K, Bendix J, Grubert L, Hecht S, Nielsen MB. Stabilizing Indigo
Z
‐Isomer through Intramolecular Associations of Redox‐Active Appendages. European J Org Chem 2021. [DOI: 10.1002/ejoc.202100781] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Line Broløs
- Department of Chemistry University of Copenhagen Universitetsparken 5 DK-2100 Copenhagen Ø Denmark
| | - Kristin Klaue
- Department of Chemistry & IRIS Adlershof Humboldt-Universität zu Berlin Brook-Taylor-Str. 2 12489 Berlin Germany
| | - Jesper Bendix
- Department of Chemistry University of Copenhagen Universitetsparken 5 DK-2100 Copenhagen Ø Denmark
| | - Lutz Grubert
- Department of Chemistry & IRIS Adlershof Humboldt-Universität zu Berlin Brook-Taylor-Str. 2 12489 Berlin Germany
| | - Stefan Hecht
- Department of Chemistry & IRIS Adlershof Humboldt-Universität zu Berlin Brook-Taylor-Str. 2 12489 Berlin Germany
- DWI – Leibniz Institute for Interactive Materials Forckenbeckstr. 50 52074 Aachen Germany
- Institute of Technical and Macromolecular Chemistry RWTH Aachen University Worringer Weg 2 52074 Aachen Germany
| | - Mogens Brøndsted Nielsen
- Department of Chemistry University of Copenhagen Universitetsparken 5 DK-2100 Copenhagen Ø Denmark
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