1
|
Zhang L, Xu Y, Wei W. Water-soluble organic macrocycles based on dye chromophores and their applications. Chem Commun (Camb) 2023; 59:13562-13570. [PMID: 37901908 DOI: 10.1039/d3cc04159j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2023]
Abstract
Traditional water-soluble organic macrocyclic receptors generally lack photofunctionality, thus monitoring the drug delivery and the phototheranostic applications of these host-guest macrocyclic systems has been greatly restricted. To address this issue, incorporating π-conjugated dye chromophores as building blocks into macrocyclic molecules is a straightforward and promising strategy. This approach not only imparts intrinsic optical features to the macrocycles themselves but also enhances the host-guest binding ability due to the large planar structures of the dyes. In this feature article, we focus on recent advances in water-soluble macrocyclic compounds based on organic dye chromophores, such as naphthalimide (NDI), perylene diimides (PDI), azobenzene (azo), tetraphenylethylene (TPE) and anthracene, and provide an overview of their various applications including molecular recognition, drug release, biological imaging, photothermal therapy, etc. We hope that this article could be helpful and instructive for the design of water-soluble dye-based macrocycles and the further development of their biomedical applications, particularly in combination with drug therapy and phototheranostics.
Collapse
Affiliation(s)
- Luying Zhang
- Beijing Key Laboratory for Optical Materials and Photonic Devices, Department of Chemistry, Capital Normal University, Beijing 100048, China.
| | - Yanqing Xu
- Key Laboratory of Medical Molecule Science and Pharmaceutical Engineering, Ministry of Industry and Information Technology, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, China.
| | - Wei Wei
- Beijing Key Laboratory for Optical Materials and Photonic Devices, Department of Chemistry, Capital Normal University, Beijing 100048, China.
| |
Collapse
|
2
|
Zhou MY, Yu ZS, Deng W, Lu HL, Niu XF, Tong J, Yu SY, Fujita M. [M 8L 4] 8+-Type Squares Self-Assembled by Dipalladium Corners and Bridging Aromatic Dipyrazole Ligands for Iodine Capture. Inorg Chem 2023. [PMID: 37320970 DOI: 10.1021/acs.inorgchem.3c00893] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Square-like metallamacrocyclic palladium(II) complexes [M8L4]8+ (1-7) were synthesized by reacting aromatic dipyrazole ligands (H2L1-H2L3 with pyromellitic arylimide-, 1,4,5,8-naphthalenetetracarboxylic arylimide-, and anthracene-based aromatic groups, respectively) with dipalladium corners ([(bpy)2Pd2(NO3)2](NO3)2, [(dmbpy)2Pd2(NO3)2](NO3)2, or [(phen)2Pd2(NO3)2](NO3)2, where bpy = 2,2'-bipyridine, dmbpy = 4,4'-dimethyl-2,2'-bipyridine, and phen = 1,10-phenanthroline) in aqueous solutions via metal-directed self-assembly. Metallamacrocycles 1-7 were fully characterized by 1H and 13C nuclear magnetic resonance spectroscopy and electrospray ionization mass spectrometry, and the square structure of 7·8NO3- was further confirmed via single crystal X-ray diffraction. These square-like metallamacrocycles exhibit effective performance for iodine adsorption.
Collapse
Affiliation(s)
- Meng-Ying Zhou
- Center of Excellence for Environmental Safety and Biological Effects, Beijing Key Laboratory for Green Catalysis and Separation, Department of Chemistry, Faculty of Environment and Life, Beijing University of Technology, Beijing 100124, China
| | - Zheng-Su Yu
- Department of Applied Chemistry, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Wei Deng
- Center of Excellence for Environmental Safety and Biological Effects, Beijing Key Laboratory for Green Catalysis and Separation, Department of Chemistry, Faculty of Environment and Life, Beijing University of Technology, Beijing 100124, China
| | - Hong-Lin Lu
- Center of Excellence for Environmental Safety and Biological Effects, Beijing Key Laboratory for Green Catalysis and Separation, Department of Chemistry, Faculty of Environment and Life, Beijing University of Technology, Beijing 100124, China
| | - Xiao-Fei Niu
- Center of Excellence for Environmental Safety and Biological Effects, Beijing Key Laboratory for Green Catalysis and Separation, Department of Chemistry, Faculty of Environment and Life, Beijing University of Technology, Beijing 100124, China
| | - Jin Tong
- Center of Excellence for Environmental Safety and Biological Effects, Beijing Key Laboratory for Green Catalysis and Separation, Department of Chemistry, Faculty of Environment and Life, Beijing University of Technology, Beijing 100124, China
| | - Shu-Yan Yu
- Center of Excellence for Environmental Safety and Biological Effects, Beijing Key Laboratory for Green Catalysis and Separation, Department of Chemistry, Faculty of Environment and Life, Beijing University of Technology, Beijing 100124, China
| | - Makoto Fujita
- Department of Applied Chemistry, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| |
Collapse
|
3
|
Liu WC, Gabbaï FP. Placing gold on a π +-surface: ligand design and impact on reactivity. Chem Sci 2023; 14:277-283. [PMID: 36687358 PMCID: PMC9811580 DOI: 10.1039/d2sc05574k] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2022] [Accepted: 11/21/2022] [Indexed: 11/24/2022] Open
Abstract
We describe a novel gold chloride complex supported by an ambiphilic phosphine/xanthylium ligand in which the AuCl moiety interacts with the π+ surface of the xanthylium unit as indicated by structural studies. Energy decomposition analyses carried out on a model system indicates the prevalence of non-covalent interactions in which the electrostatic and dispersion terms cumulatively dominate. The presence of these AuCl-π+ interactions correlates with the high catalytic activity of this complex in the cyclisation of 2-(phenylethynyl)phenylboronic acid, N-propargyl-t-butylamide, and 2-allyl-2-(2-propynyl)malonate. Comparison with the significantly less active acridinium and the 9-oxa-10-boraanthracene analogues reinforces this conclusion.
Collapse
Affiliation(s)
- Wei-Chun Liu
- Department of Chemistry, Texas A&M UniversityCollege StationTX 77843USA
| | | |
Collapse
|
4
|
Parameswaran AM, James A, Aboobacker A, Srinivasamurthy Swathi R. Unfurling Anion-π Interactions Involving Graphynes. Chemphyschem 2023; 24:e202200548. [PMID: 36068988 DOI: 10.1002/cphc.202200548] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Revised: 09/06/2022] [Indexed: 01/07/2023]
Abstract
Ever since the inception of anion-π interactions, their nature and functional relevance have intrigued researchers. We address the twin challenge of elucidation of the role of extended conjugation and design of all-carbon neutral anion receptors by computations on the anion-π complexes of the halide ions with graphynes. Leveraging on the extended π-conjugation effects, we unfurl the functional relevance of graphynes as anion receptors using descriptors such as electrostatic potential, quadrupole moments, molecular polarizabilities and binding energies. Further, employing natural energy decomposition analysis, we assert that anion-π interactions are not merely dominated by electrostatic interactions. The polarization components do indeed play a crucial role in governing the binding of the anions to the graphynes.
Collapse
Affiliation(s)
- Aiswarya M Parameswaran
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram, Vithura, Thiruvananthapuram 695551, India
| | - Anto James
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram, Vithura, Thiruvananthapuram 695551, India
| | - Adil Aboobacker
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram, Vithura, Thiruvananthapuram 695551, India
| | - Rotti Srinivasamurthy Swathi
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram, Vithura, Thiruvananthapuram 695551, India
| |
Collapse
|
5
|
A Theoretical Design of Chiral Molecules through Conformational Lock towards Circularly Polarized Luminescence. PHOTONICS 2022. [DOI: 10.3390/photonics9080532] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Circularly polarized (CP) light has shown great potential in quantum computing, optical communications, and three-dimensional displays. It is still a challenge to produce high-efficiency and high-purity CP light. Herein, we proposed a strategy to design chiral organic small molecules for CP light generation. These kinds of chiral molecules are formed by achiral light-emitting groups and achiral alkyl chains through conformational lock, which indicates that chirality can also be introduced into achiral light-emitting groups through rational molecular design. The chirality of these molecules can be further tuned by changing the length of the alkyl chains connecting the diketopyrrolopyrrole unit. The chiroptical properties of these molecules are confirmed by calculated electronic circular dichroism and chiral emission spectra, and further confirmed in experiments. The strategy developed in this work will greatly enlarge the candidate library of chiral luminescent materials.
Collapse
|
6
|
Garain S, Wagalgave SM, Kongasseri AA, Garain BC, Ansari SN, Sardar G, Kabra D, Pati SK, George SJ. Anion-π-Induced Room Temperature Phosphorescence from Emissive Charge-Transfer States. J Am Chem Soc 2022; 144:10854-10861. [PMID: 35679170 DOI: 10.1021/jacs.2c02678] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The burgeoning noncovalent interactions between π-acidic aromatic surfaces and anions have been recently shown to have unique functional relevance in anion transport, ion sensing, and organocatalysis. Despite its potential to instigate charge-transfer (CT) states, modulation of the emission features by toggling between the excited states using anion-π interactions is not yet explored. On the other hand, excited states with CT characteristics play an important role in the ambient triplet harvesting of organic chromophores. In this context, herein we propose an anion-π-based molecular design for the introduction of emissive singlet and triplet CT excited states, thereby expanding the functional scope of these weak supramolecular interactions. In the present study, we investigate the anion-π-induced emission from the singlet (1CT) and triplet (3CT) CT states of a dibromo dicationic pyromellitic diimide derivative. Remarkably, we accomplish dual room temperature phosphorescence emission from the anion-π-mediated 3CT state along with the locally excited triplet state (3LE) in solution phase using an organic-inorganic supramolecular scaffolding strategy. Comprehensive steady-state and time-resolved spectroscopy along with theoretical calculations provide detailed insights into the excited-state manifolds of phosphor. We envisage that the present study will expedite new molecular designs based on weak intermolecular interactions for the excited-state engineering of organic chromophores to facilitate ambient triplet harvesting and CT emission.
Collapse
Affiliation(s)
- Swadhin Garain
- New Chemistry Unit and School of Advanced Materials, Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur, Bangalore 560064, India
| | - Sopan M Wagalgave
- New Chemistry Unit and School of Advanced Materials, Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur, Bangalore 560064, India
| | - Anju Ajayan Kongasseri
- New Chemistry Unit and School of Advanced Materials, Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur, Bangalore 560064, India
| | - Bidhan Chandra Garain
- Theoretical Sciences Unit, Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur, Bangalore 560064, India
| | - Shagufi Naz Ansari
- New Chemistry Unit and School of Advanced Materials, Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur, Bangalore 560064, India
| | - Gopa Sardar
- Department of Physics, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Dinesh Kabra
- Department of Physics, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Swapan K Pati
- Theoretical Sciences Unit, Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur, Bangalore 560064, India
| | - Subi J George
- New Chemistry Unit and School of Advanced Materials, Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur, Bangalore 560064, India
| |
Collapse
|
7
|
Bai L, Wang N, Li Y. Controlled Growth and Self-Assembly of Multiscale Organic Semiconductor. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2022; 34:e2102811. [PMID: 34486181 DOI: 10.1002/adma.202102811] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Revised: 06/18/2021] [Indexed: 06/13/2023]
Abstract
Currently, organic semiconductors (OSs) are widely used as active components in practical devices related to energy storage and conversion, optoelectronics, catalysis, and biological sensors, etc. To satisfy the actual requirements of different types of devices, chemical structure design and self-assembly process control have been synergistically performed. The morphology and other basic properties of multiscale OS components are governed on a broad scale from nanometers to macroscopic micrometers. Herein, the up-to-date design strategies for fabricating multiscale OSs are comprehensively reviewed. Related representative works are introduced, applications in practical devices are discussed, and future research directions are presented. Design strategies combining the advances in organic synthetic chemistry and supramolecular assembly technology perform an integral role in the development of a new generation of multiscale OSs.
Collapse
Affiliation(s)
- Ling Bai
- Science Center for Material Creation and Energy Conversion, School of Chemistry and Chemical Engineering, Institute of Frontier and Interdisciplinary Science, Shandong University, No. 27 # Shanda South Street, Jinan, 250100, P. R. China
| | - Ning Wang
- Science Center for Material Creation and Energy Conversion, School of Chemistry and Chemical Engineering, Institute of Frontier and Interdisciplinary Science, Shandong University, No. 27 # Shanda South Street, Jinan, 250100, P. R. China
| | - Yuliang Li
- Science Center for Material Creation and Energy Conversion, School of Chemistry and Chemical Engineering, Institute of Frontier and Interdisciplinary Science, Shandong University, No. 27 # Shanda South Street, Jinan, 250100, P. R. China
- Institute of Chemistry, Chinese Academy of Sciences, No. 2 # Zhongguancun North First Street, Beijing, 100190, P. R. China
| |
Collapse
|
8
|
Yang F, Zhen M, Wang S, Wei W, He H, Xu Y. Atropisomer-based construction of a new perylene diimide macrocycle as visible-light photocatalyst for selective sulfide oxidation. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2022.03.123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
|
9
|
Maynard JRJ, Galmés B, Stergiou AD, Symes MD, Frontera A, Goldup SM. Anion-π Catalysis Enabled by the Mechanical Bond. Angew Chem Int Ed Engl 2022; 61:e202115961. [PMID: 35040543 PMCID: PMC9303940 DOI: 10.1002/anie.202115961] [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: 11/23/2021] [Indexed: 12/13/2022]
Abstract
We report a series of rotaxane‐based anion–π catalysts in which the mechanical bond between a bipyridine macrocycle and an axle containing an NDI unit is intrinsic to the activity observed, including a [3]rotaxane that catalyses an otherwise disfavoured Michael addition in >60 fold selectivity over a competing decarboxylation pathway that dominates under Brønsted base conditions. The results are rationalized by detailed experimental investigations, electrochemical and computational analysis.
Collapse
Affiliation(s)
- John R J Maynard
- Chemistry, University of Southampton, Highfield, Southampton, S017 1BJ, UK
| | - Bartomeu Galmés
- Department of Chemistry, Universitat de les Illes Balears, Crta de Valldemossa km 7.5, 07122, Palma de Mallorca, Baleares, Spain
| | - Athanasios D Stergiou
- WestCHEM School of Chemistry, University of Glasgow, Joseph Black Building, University Avenue, Glasgow, G12 8QQ, UK
| | - Mark D Symes
- WestCHEM School of Chemistry, University of Glasgow, Joseph Black Building, University Avenue, Glasgow, G12 8QQ, UK
| | - Antonio Frontera
- Department of Chemistry, Universitat de les Illes Balears, Crta de Valldemossa km 7.5, 07122, Palma de Mallorca, Baleares, Spain
| | - Stephen M Goldup
- Chemistry, University of Southampton, Highfield, Southampton, S017 1BJ, UK
| |
Collapse
|
10
|
Maynard JRJ, Galmés B, Stergiou A, Symes M, Frontera A, Goldup SM. Anion‐π Catalysis Enabled by the Mechanical Bond. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202115961] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
| | | | | | - Mark Symes
- University of Glasgow Chemistry UNITED KINGDOM
| | | | | |
Collapse
|
11
|
Yang F, Li Y, Li R, Wang X, Cui X, Wei W, Xu Y. Fine-Tuning Macrocycle Cavity to Selectively Bind Guests in Water for Near-Infrared Photothermal Conversion. Org Chem Front 2022. [DOI: 10.1039/d2qo00443g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The rational and specific synthesis of the required organic macrocycles to bind the size-matched targeted guests without undesired macrocyclic byproducts remains a great challenge. Herein, based on a new naphthalimide...
Collapse
|
12
|
Luo N, Ao YF, Wang DX, Wang QQ. Putting Anion-π Interactions at Work for Catalysis. Chemistry 2021; 28:e202103303. [PMID: 34658085 DOI: 10.1002/chem.202103303] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2021] [Indexed: 12/21/2022]
Abstract
Since its discovery two decades ago, anion-π interaction has been increasingly recognized as an important driving force. Extensive theoretical and experimental efforts on the ground-state anion-π binding and recognition have laid the bases for exploring its relevance in catalysis. Accordingly, the concept of "anion-π catalysis" that employing an electron-deficient π surface (π-acidic surface) for anionic reaction intermediate and transition state stabilization has emerged. This article shortly reviews the emergence and development of this concept, aiming to provide an emphasis on the general concept and key progress in this exciting area. To highlight the essential contribution of anion-π interactions, the contents are organized according to their role engaged in catalytic process, for example from both ground-state and transition-state stabilization to solely transition-state stabilization, mainly by a single π-face, and to cooperative π-face activation. A concluding remark and outlook on future development of this field is also given.
Collapse
Affiliation(s)
- Na Luo
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China.,University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Yu-Fei Ao
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China.,University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - De-Xian Wang
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China.,University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Qi-Qiang Wang
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China.,University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| |
Collapse
|
13
|
Pitarch-Jarque J, Zaragozá RJ, Ballesteros R, Abarca B, Garcia-España E, Verdejo B, Ballesteros-Garrido R. About the relevance of anion-π interactions in water. Dalton Trans 2021; 50:6834-6839. [PMID: 33912885 DOI: 10.1039/d1dt00771h] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Anion-π interactions are emerging as exotic features with potential applications in chemistry. In the last years, their relevance in living systems has been outlined, and so far there is no concluding significant evidence recognized about the participation of anion-π interactions in water because anion-π sensors contain large aromatic hydrophobic surfaces with limited solubility. By transforming a neutral heterocycle (for example quinoline) into its corresponding salt (quinolinium), we have been able to overcome these solubility issues, and new cationic water-soluble fluorophores have been prepared. Herein, we used N-alkylated heterocycles as π-acidic surfaces to shed light on the nature of anion-π in water by the direct measurement of the fluorescence and UV/Vis spectra in combination with DFT and X-ray analyses.
Collapse
Affiliation(s)
- Javier Pitarch-Jarque
- Instituto de Ciencia Molecular (ICMOL), University of Valencia, C/Catedrático José Beltrán, 2, 46980, Paterna, Valencia, Spain
| | - Ramón J Zaragozá
- Department of Organic Chemistry University of Valencia, Av. Vicent Andrés Estellés, s/n., 46100 Burjassot, Valencia, Spain.
| | - Rafael Ballesteros
- Department of Organic Chemistry University of Valencia, Av. Vicent Andrés Estellés, s/n., 46100 Burjassot, Valencia, Spain.
| | - Belen Abarca
- Department of Organic Chemistry University of Valencia, Av. Vicent Andrés Estellés, s/n., 46100 Burjassot, Valencia, Spain.
| | - Enrique Garcia-España
- Instituto de Ciencia Molecular (ICMOL), University of Valencia, C/Catedrático José Beltrán, 2, 46980, Paterna, Valencia, Spain
| | - Begoña Verdejo
- Instituto de Ciencia Molecular (ICMOL), University of Valencia, C/Catedrático José Beltrán, 2, 46980, Paterna, Valencia, Spain
| | - Rafael Ballesteros-Garrido
- Department of Organic Chemistry University of Valencia, Av. Vicent Andrés Estellés, s/n., 46100 Burjassot, Valencia, Spain.
| |
Collapse
|
14
|
Kumar Bhaumik P, Frontera A, Chattopadhyay S. Exploitation of the electron deficient outer O4 compartment of a compartmental Schiff base to act as H-bond acceptors in forming a self-assembled dimer of a manganese(III) complex: A joint experimental and theoretical venture. Polyhedron 2020. [DOI: 10.1016/j.poly.2020.114711] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
15
|
Chowdhury B, Sinha S, Dutta R, Mondal S, Karmakar S, Ghosh P. Discriminative Behavior of a Donor-Acceptor-Donor Triad toward Cyanide and Fluoride: Insights into the Mechanism of Naphthalene Diimide Reduction by Cyanide and Fluoride. Inorg Chem 2020; 59:13371-13382. [PMID: 32870665 DOI: 10.1021/acs.inorgchem.0c01738] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A new molecular donor-acceptor-donor (D-A-D) triad, comprised of an electron deficient 1,4,5,8-naphthalene tetracarboxylic diimide (NDI) unit covalently connected to two flanking photosensitizers, i.e., a bis-heteroleptic Ru(II) complex of 1,10-phenanthroline and pyridine triazole hybrid ligand, is described. The single crystal X-ray structure of the perchlorate salt of the triad demonstrates that the electron deficient NDI unit can act as a host for anions via anion-π interaction. Detailed solution-state studies indicate that fluoride selectively interacts with the D-A-D triad to form a dianionic NDI, NDI2-, via a radical anion, NDI•-. On the contrary, cyanide reduces the NDI moiety to NDI•-, as confirmed by UV-vis, NMR, and EPR spectroscopy. Further, femtosecond transient absorption spectroscopic studies reveal a low luminescence quantum yield of the D-A-D triad attributable to the photoinduced electron transfer (PET) process from the photoactive Ru(II) center to the NDI unit. Interestingly, the triad displays "OFF-ON" luminescence behavior in the presence of fluoride by restoring the Ru(II) to phenanthroline/pyridine-triazole-based MLCT emission, whereas cyanide fails to show a similar property due to a different redox process operational in the latter. The reduction of NDI in the presence of fluoride and cyanide in different polar solvents indicates that involvement of such deprotonated solvents in the electron transfer mechanism may not be operative in our present system. Low-temperature kinetic studies support the formation of a charge transfer associative transient species, which likely allows overcoming the thermodynamically uphill barrier for the direct electron transfer mechanism.
Collapse
Affiliation(s)
- Bijit Chowdhury
- School of Chemical Sciences, Indian Association for the Cultivation of Science, 2A & 2B Raja S. C. Mullick Road, Kolkata 700 032, India
| | - Sanghamitra Sinha
- School of Chemical Sciences, Indian Association for the Cultivation of Science, 2A & 2B Raja S. C. Mullick Road, Kolkata 700 032, India
| | - Ranjan Dutta
- School of Chemical Sciences, Indian Association for the Cultivation of Science, 2A & 2B Raja S. C. Mullick Road, Kolkata 700 032, India
| | - Sahidul Mondal
- School of Chemical Sciences, Indian Association for the Cultivation of Science, 2A & 2B Raja S. C. Mullick Road, Kolkata 700 032, India
| | - Shreetama Karmakar
- Department of Chemical Sciences, Tata Institute of Fundamental Research, Homi Bhabha Road Colaba, Mumbai 400005, India
| | - Pradyut Ghosh
- School of Chemical Sciences, Indian Association for the Cultivation of Science, 2A & 2B Raja S. C. Mullick Road, Kolkata 700 032, India
| |
Collapse
|
16
|
Rather IA, Wagay SA, Ali R. Emergence of anion-π interactions: The land of opportunity in supramolecular chemistry and beyond. Coord Chem Rev 2020. [DOI: 10.1016/j.ccr.2020.213327] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
|
17
|
Piña MDLN, Gutiérrez MS, Panagos M, Duel P, León A, Morey J, Quiñonero D, Frontera A. Influence of the aromatic surface on the capacity of adsorption of VOCs by magnetite supported organic-inorganic hybrids. RSC Adv 2019; 9:24184-24191. [PMID: 35527864 PMCID: PMC9069820 DOI: 10.1039/c9ra04490f] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2019] [Accepted: 07/31/2019] [Indexed: 11/21/2022] Open
Abstract
It has been recently evidenced that hybrid magnetic nanomaterials based on perylene diimide (PDI) dopamine and iron oxide nanoparticles are useful for the adsorption and determination of volatile organic compounds (VOCs). However, NDI compounds are expensive and difficult to handle compared to smaller size diimides. Therefore, in this manuscript a combined experimental and theoretical investigation is reported including the analysis of the effect of changing the aromatic surface on the ability of these magnetite supported organic-inorganic hybrid nanoparticles (NPs) to adsorb several aromatic and non-aromatic VOCs. In particular, two new hybrid Fe3O4NPs are synthesized and characterized where the size of organic PDI dopamine linker is progressively reduced to naphthalene diimide (NDI) and pyromellitic diimide (PMDI). These materials were utilized to fill two sorbent tubes in series. Thermal desorption (TD) combined with capillary gas chromatography (GC)/flame detector (FID) was used to analyze both front and back tubes. Adsorption values (defined as % VOCs found in the front tube) were determined for a series of VOCs. The binding energies (DFT-D3 calculations) of VOC-Fe3O4NP complexes were also computed to correlate the electron-accepting ability of the arylene diimide (PDI, NDI or PMDI) with the adsorption capacity of the different tubes. The prepared hybrids can be easily separated magnetically and showed great reusability.
Collapse
Affiliation(s)
- María de Las Nieves Piña
- Department of Chemistry, Universitat de les Illes Balears Crta. de Valldemossa km 7.5 07122 Palma de Mallorca Spain
| | - María Susana Gutiérrez
- Department of Chemistry, Universitat de les Illes Balears Crta. de Valldemossa km 7.5 07122 Palma de Mallorca Spain
| | - Mario Panagos
- Department of Chemistry, Universitat de les Illes Balears Crta. de Valldemossa km 7.5 07122 Palma de Mallorca Spain
| | - Paulino Duel
- Department of Chemistry, Universitat de les Illes Balears Crta. de Valldemossa km 7.5 07122 Palma de Mallorca Spain
| | - Alberto León
- Department of Chemistry, Universitat de les Illes Balears Crta. de Valldemossa km 7.5 07122 Palma de Mallorca Spain
| | - Jeroni Morey
- Department of Chemistry, Universitat de les Illes Balears Crta. de Valldemossa km 7.5 07122 Palma de Mallorca Spain
| | - David Quiñonero
- Department of Chemistry, Universitat de les Illes Balears Crta. de Valldemossa km 7.5 07122 Palma de Mallorca Spain
| | - Antonio Frontera
- Department of Chemistry, Universitat de les Illes Balears Crta. de Valldemossa km 7.5 07122 Palma de Mallorca Spain
| |
Collapse
|
18
|
Yang F, Liu C, Yin D, Xu Y, Wu M, Wei W. Atropisomer-based construction of macrocyclic hosts that selectively recognize tryptophan from standard amino acids. Chem Commun (Camb) 2019; 55:14335-14338. [DOI: 10.1039/c9cc07646h] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
A syn-atropisomer precursor was employed to construct trapezoid-shape macrocycles, which can selectively recognize tryptophan from 20 standard amino acids.
Collapse
Affiliation(s)
- Fei Yang
- Department of Chemistry
- Capital Normal University
- Beijing 100048
- China
- Laboratory of Cluster Science
| | - Caiping Liu
- State Key Lab of Structure Chemistry
- Fujian Institute of Research on the Structure of Mater
- Chinese Academy of Sciences
- Fuzhou 350002
- China
| | - Di Yin
- Department of Chemistry
- Capital Normal University
- Beijing 100048
- China
| | - Yanqing Xu
- Laboratory of Cluster Science
- Ministry of Education of China
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials
- School of Chemistry and Chemical Engineering
- Beijing Institute of Technology
| | - Mingyan Wu
- State Key Lab of Structure Chemistry
- Fujian Institute of Research on the Structure of Mater
- Chinese Academy of Sciences
- Fuzhou 350002
- China
| | - Wei Wei
- Department of Chemistry
- Capital Normal University
- Beijing 100048
- China
| |
Collapse
|
19
|
Hahn R, Bohle F, Fang W, Walther A, Grimme S, Esser B. Raising the Bar in Aromatic Donor-Acceptor Interactions with Cyclic Trinuclear Gold(I) Complexes as Strong π-Donors. J Am Chem Soc 2018; 140:17932-17944. [PMID: 30477299 DOI: 10.1021/jacs.8b08823] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Aromatic donor-acceptor interactions are of high importance in supramolecular chemistry, materials science and biology. Compared to other noncovalent interactions, such as hydrogen bonding, the binding is often weak. Here we show that strong donor-acceptor interactions between planar aromatics with binding free energies down to -10.1 kcal mol-1 and association constants of up to 2.34 × 107 L mol-1 for 1:1 complexes can be realized using cyclic trinuclear complexes of gold(I) with pyridinate, imidazolate, or carbeniate ligands. Data were obtained through NMR and UV/vis absorption spectroscopic studies and supported by quantum chemical calculations for a variety of acceptors. By using a specifically designed bridged naphthalene diimide-based acceptor with only one binding site, we furthermore show that a 1:2 (donor:acceptor) binding model is best suited to quantify the donor and acceptor/complex equilibrium. Scanning electron microscopy on selected donor-acceptor pairs shows crystalline supramolecular assemblies. We anticipate this study to be relevant for the future design of supramolecular systems and chemical sensors and the determination of binding energies between planar donors and acceptors.
Collapse
Affiliation(s)
- Raiko Hahn
- Institute for Organic Chemistry , University of Freiburg , Albertstraße 21 , 79104 Freiburg , Germany
| | - Fabian Bohle
- Mulliken Center for Theoretical Chemistry , University of Bonn , Beringstraße 4 , 53115 Bonn , Germany
| | - Wenwen Fang
- Institute for Macromolecular Chemistry , University of Freiburg , Stefan-Meier-Straße 31 , 79104 Freiburg , Germany.,Freiburg Materials Research Center (FMF) , University of Freiburg , Stefan-Meier-Straße 21 , 79104 Freiburg , Germany.,Freiburg Center for Interactive Materials and Bioinspired Technologies (FIT) , University of Freiburg , Georges-Köhler-Allee 105 , 79110 Freiburg , Germany
| | - Andreas Walther
- Institute for Macromolecular Chemistry , University of Freiburg , Stefan-Meier-Straße 31 , 79104 Freiburg , Germany.,Freiburg Materials Research Center (FMF) , University of Freiburg , Stefan-Meier-Straße 21 , 79104 Freiburg , Germany.,Freiburg Center for Interactive Materials and Bioinspired Technologies (FIT) , University of Freiburg , Georges-Köhler-Allee 105 , 79110 Freiburg , Germany
| | - Stefan Grimme
- Mulliken Center for Theoretical Chemistry , University of Bonn , Beringstraße 4 , 53115 Bonn , Germany
| | - Birgit Esser
- Institute for Organic Chemistry , University of Freiburg , Albertstraße 21 , 79104 Freiburg , Germany.,Freiburg Materials Research Center (FMF) , University of Freiburg , Stefan-Meier-Straße 21 , 79104 Freiburg , Germany
| |
Collapse
|
20
|
Zhao Y, Cotelle Y, Liu L, López-Andarias J, Bornhof AB, Akamatsu M, Sakai N, Matile S. The Emergence of Anion-π Catalysis. Acc Chem Res 2018; 51:2255-2263. [PMID: 30188692 DOI: 10.1021/acs.accounts.8b00223] [Citation(s) in RCA: 132] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The objective of this Account is to summarize the first five years of anion-π catalysis. The general idea of anion-π catalysis is to stabilize anionic transition states on aromatic surfaces. This is complementary to the stabilization of cationic transition states on aromatic surfaces, a mode of action that occurs in nature and is increasingly used in chemistry. Anion-π catalysis, however, rarely occurs in nature and has been unexplored in chemistry. Probably because the attraction of anions to π surfaces as such is counterintuitive, anion-π interactions in general are much younger than cation-π interactions and remain under-recognized until today. Anion-π catalysis has emerged from early findings that anion-π interactions can mediate the transport of anions across lipid bilayer membranes. With this evidence for stabilization in the ground state secured, there was no reason to believe that anion-π interactions could not also stabilize anionic transition states. As an attractive reaction to develop anion-π catalysis, the addition of malonic acid half thioesters to enolate acceptors was selected. This choice was also made because without enzymes decarboxylation is preferred and anion-π interactions promised to catalyze selectively the disfavored but relevant enolate addition. Concerning anion-π catalysts, we started with naphthalene diimides (NDIs) because their intrinsic quadrupole moment is highly positive. The NDI scaffold was used to address questions such as the positioning of substrates on the catalytic π surface or the dependence of activity on the π acidity of this π surface. With the basics in place, the next milestone was the creation of anion-π enzymes, that is, enzymes that operate with an interaction rarely used in biology, at least on intrinsically π-acidic or highly polarizable aromatic amino-acid side chains. Electric-field-assisted anion-π catalysis addresses topics such as heterogeneous catalysis on electrodes and remote control of activity by voltage. On π-stacked foldamers, anion-(π) n-π catalysis was discovered. Fullerenes emerged as the scaffold of choice to explore contributions from polarizability. On fullerenes, anionic transition states are stabilized by large macrodipoles that appear only in response to their presence. With this growing collection of anion-π catalysts, several reactions beyond enolate addition have been explored so far. Initial efforts focused on asymmetric anion-π catalysis. Increasing enantioselectivity with increasing π acidity of the active π surface has been exemplified for enamine and iminium chemistry and for anion-π transaminase mimics. However, the delocalized nature of anion-π interactions calls for the stabilization of charge displacements over longer distances. The first step in this direction was the formation of cyclohexane rings with five stereogenic centers from achiral acyclic substrates on π-acidic surfaces. Moreover, the intrinsically disfavored exo transition state of anionic Diels-Alder reactions is stabilized selectively on π-acidic surfaces; endo products and otherwise preferred Michael addition products are completely suppressed. Taken together, we hope that these results on catalyst design and reaction scope will establish anion-π catalysis as a general principle in catalysis in the broadest sense.
Collapse
Affiliation(s)
- Yingjie Zhao
- Department of Organic Chemistry, University of Geneva, CH-1211 Geneva, Switzerland
| | - Yoann Cotelle
- Department of Organic Chemistry, University of Geneva, CH-1211 Geneva, Switzerland
| | - Le Liu
- Department of Organic Chemistry, University of Geneva, CH-1211 Geneva, Switzerland
| | | | - Anna-Bea Bornhof
- Department of Organic Chemistry, University of Geneva, CH-1211 Geneva, Switzerland
| | - Masaaki Akamatsu
- Department of Organic Chemistry, University of Geneva, CH-1211 Geneva, Switzerland
| | - Naomi Sakai
- Department of Organic Chemistry, University of Geneva, CH-1211 Geneva, Switzerland
| | - Stefan Matile
- Department of Organic Chemistry, University of Geneva, CH-1211 Geneva, Switzerland
| |
Collapse
|
21
|
Savastano M, Bazzicalupi C, García C, Gellini C, López de la Torre MD, Mariani P, Pichierri F, Bianchi A, Melguizo M. Iodide and triiodide anion complexes involving anion-π interactions with a tetrazine-based receptor. Dalton Trans 2018; 46:4518-4529. [PMID: 28262880 DOI: 10.1039/c7dt00134g] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Protonated forms of the tetrazine ligand L2 (3,6-bis(morpholin-4-ylethyl)-1,2,4,5-tetrazine) interact with iodide in aqueous solution forming relatively stable complexes (ΔG° = -11.6(4) kJ mol-1 for HL2+ + I- = (HL2)I and ΔG° = -13.4(2) kJ mol-1 for H2L22+ + I- = [(H2L2)I]+). When solutions of [(H2L2)I]+ are left in contact with air, crystals of the oxidation product (H2L2)2(I3)3I·4H2O are formed. Unfortunately, the low solubility of I3- complexes prevents the determination of their stability constants. The crystal structures of H2L2I2·H2O (1), H2L2(I3)2·2H2O (2) and (H2L2)2(I3)3I·4H2O (3) were determined by means of X-ray diffraction analyses. In all crystal structures, it was found that the interaction between I- and I3- with H2L22+ is dominated by anion interactions with the π electron density of the receptor. Only in the case of 1, the iodide anions involved in close anion-π interactions with the ligand tetrazine ring form an additional H-bond with the protonated morpholine nitrogen of an adjacent ligand molecule. Conversely, in crystals of 2 and 3 there are alternate segregated planes which contain only protonated ligands hydrogen-bonded to cocrystallized water molecules or I3- and I- forming infinite two-dimensional networks established through short interhalogen contacts, making these crystalline products good candidates to behave as solid conductors. In the solid complexes, the triiodide anion displays both end-on and side-on interaction modes with the tetrazine ring, in agreement with density functional theory calculations indicating a preference for the alignment of the I3- molecular axis with the molecular axis of the ligand. Further information about geometries and structures of triiodide anions in 2 and 3 was acquired by the analysis of their Raman spectra.
Collapse
Affiliation(s)
- Matteo Savastano
- Department of Chemistry "Ugo Schiff", University of Florence, Via della Lastruccia 3, 50019, Sesto Fiorentino, Italy.
| | - Carla Bazzicalupi
- Department of Chemistry "Ugo Schiff", University of Florence, Via della Lastruccia 3, 50019, Sesto Fiorentino, Italy.
| | - Celeste García
- Department of Inorganic and Organic Chemistry, University of Jaén 23071, Jaén, Spain.
| | - Cristina Gellini
- Department of Chemistry "Ugo Schiff", University of Florence, Via della Lastruccia 3, 50019, Sesto Fiorentino, Italy.
| | | | - Palma Mariani
- Department of Chemistry "Ugo Schiff", University of Florence, Via della Lastruccia 3, 50019, Sesto Fiorentino, Italy.
| | - Fabio Pichierri
- Department of Applied Chemistry, Graduate School of Engineering, Tohoku University, Sendai 980-8579, Japan.
| | - Antonio Bianchi
- Department of Chemistry "Ugo Schiff", University of Florence, Via della Lastruccia 3, 50019, Sesto Fiorentino, Italy.
| | - Manuel Melguizo
- Department of Inorganic and Organic Chemistry, University of Jaén 23071, Jaén, Spain.
| |
Collapse
|
22
|
Franconetti A, Jiménez-Barbero J, Cabrera-Escribano F. The Stabilization of Glycosyl Cations Through Cooperative Noncovalent Interactions: A Theoretical Perspective. Chemphyschem 2018; 19:659-665. [DOI: 10.1002/cphc.201700988] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2017] [Revised: 10/25/2017] [Indexed: 01/18/2023]
Affiliation(s)
- Antonio Franconetti
- Department of Organic Chemistry; Faculty of Chemistry; University of Seville; C/ Profesor García González 1 41012 Sevilla Spain
| | - Jesús Jiménez-Barbero
- Molecular Recognition and Host-Pathogen Interactions; CIC bioGUNE; Bizkaia Technology Park, Building 801 A 48170 Derio Spain
- Basque Foundation for Science; Maria Diaz de Haro 13 48009 Bilbao Spain
- Department of Organic Chemistry II; Faculty of Science and Technology; University of the BasqueCountry; 48940 Leioa Bizkaia Spain
| | - Francisca Cabrera-Escribano
- Department of Organic Chemistry; Faculty of Chemistry; University of Seville; C/ Profesor García González 1 41012 Sevilla Spain
| |
Collapse
|
23
|
Diac A, Matache M, Grosu I, Hădade ND. Naphthalenediimide - A Unique Motif in Macrocyclic and Interlocked Supramolecular Structures. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201701362] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- Andreea Diac
- Faculty of Chemistry and Chemical Engineering, Supramolecular Organic and Organometallic Chemistry Centre; “Babeş-Bolyai” University; 11 Arany Janos Str. RO-400028 Cluj-Napoca Romania
| | - Mihaela Matache
- University of Bucharest; Faculty of Chemistry, Department of Organic Chemistry, Biochemistry and Catalysis, Research Centre of Applied Organic Chemistry; 90-92 Panduri Street RO-050663 Bucharest Romania
| | - Ion Grosu
- Faculty of Chemistry and Chemical Engineering, Supramolecular Organic and Organometallic Chemistry Centre; “Babeş-Bolyai” University; 11 Arany Janos Str. RO-400028 Cluj-Napoca Romania
| | - Niculina D. Hădade
- Faculty of Chemistry and Chemical Engineering, Supramolecular Organic and Organometallic Chemistry Centre; “Babeş-Bolyai” University; 11 Arany Janos Str. RO-400028 Cluj-Napoca Romania
| |
Collapse
|
24
|
Abstract
This review article highlights the emergence of eclectic molecular design principles to realize remarkably strong electron deficient arylenediimide molecules, aspects of their stability and associated applications.
Collapse
Affiliation(s)
- Sharvan Kumar
- Supramolecular and Material Chemistry Lab
- School of Physical Sciences
- Jawaharlal Nehru University
- New Delhi 110067
- India
| | - Jyoti Shukla
- Supramolecular and Material Chemistry Lab
- School of Physical Sciences
- Jawaharlal Nehru University
- New Delhi 110067
- India
| | - Yogendra Kumar
- Supramolecular and Material Chemistry Lab
- School of Physical Sciences
- Jawaharlal Nehru University
- New Delhi 110067
- India
| | - Pritam Mukhopadhyay
- Supramolecular and Material Chemistry Lab
- School of Physical Sciences
- Jawaharlal Nehru University
- New Delhi 110067
- India
| |
Collapse
|
25
|
Li L, Hong YJ, Lin Y, Xiao WC, Lin MJ. An electron-deficient nanosized polycyclic aromatic hydrocarbon with enhanced anion–π interactions. Chem Commun (Camb) 2018; 54:11941-11944. [DOI: 10.1039/c8cc06522e] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A super-electron-deficient nano-sized polycyclic aromatic hydrocarbon with six imide groups at the corners has been synthesized, which exhibited enhanced anion–π interactions with various anions.
Collapse
Affiliation(s)
- Lei Li
- College of Chemistry
- Fuzhou University
- China
| | | | - Yun Lin
- Testing Centre, Fuzhou University
- China
| | - Wang-Chuan Xiao
- School of Resources and Chemical Engineering
- Sanming Institute of Fluorochemical Industry
- Sanming University
- China
| | | |
Collapse
|
26
|
Savastano M, García C, López de la Torre MD, Pichierri F, Bazzicalupi C, Bianchi A, Melguizo M. Interplay between salt bridge, hydrogen bond and anion-π interactions in thiocyanate binding. Inorganica Chim Acta 2018. [DOI: 10.1016/j.ica.2017.04.029] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
|
27
|
Young NA, Drew SC, Maniam S, Langford SJ. Systematically Studying the Effect of Fluoride on the Properties of Cyclophanes Bearing Naphthalene Diimide and Dialkoxyaryl Groups. Chem Asian J 2017; 12:1668-1675. [DOI: 10.1002/asia.201700459] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2017] [Revised: 05/09/2017] [Indexed: 01/09/2023]
Affiliation(s)
- Nicholas A. Young
- School of Chemistry Monash University Wellington Rd Clayton Victoria 3800 Australia
| | - Simon C. Drew
- Department of Medicine Royal Melbourne Hospital The University of Melbourne Melbourne Victoria 3010 Australia
| | - Subashani Maniam
- School of Chemistry Monash University Wellington Rd Clayton Victoria 3800 Australia
| | - Steven J. Langford
- School of Chemistry Monash University Wellington Rd Clayton Victoria 3800 Australia
| |
Collapse
|
28
|
Neel AJ, Hilton MJ, Sigman MS, Toste FD. Exploiting non-covalent π interactions for catalyst design. Nature 2017; 543:637-646. [PMID: 28358089 PMCID: PMC5907483 DOI: 10.1038/nature21701] [Citation(s) in RCA: 502] [Impact Index Per Article: 71.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2016] [Accepted: 01/27/2017] [Indexed: 12/18/2022]
Abstract
Molecular recognition, binding and catalysis are often mediated by non-covalent interactions involving aromatic functional groups. Although the relative complexity of these so-called π interactions has made them challenging to study, theory and modelling have now reached the stage at which we can explain their physical origins and obtain reliable insight into their effects on molecular binding and chemical transformations. This offers opportunities for the rational manipulation of these complex non-covalent interactions and their direct incorporation into the design of small-molecule catalysts and enzymes.
Collapse
Affiliation(s)
- Andrew J Neel
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
- Department of Chemistry, University of California, Berkeley, California 94720, USA
| | - Margaret J Hilton
- Department of Chemistry, University of Utah, 315 South 1400 East, Salt Lake City, Utah 84112, USA
| | - Matthew S Sigman
- Department of Chemistry, University of Utah, 315 South 1400 East, Salt Lake City, Utah 84112, USA
| | - F Dean Toste
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
- Department of Chemistry, University of California, Berkeley, California 94720, USA
| |
Collapse
|
29
|
Mooibroek TJ. Coordinated nitrate anions can be directional π-hole donors in the solid state: a CSD study. CrystEngComm 2017. [DOI: 10.1039/c7ce01266g] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Within the CSD sp2O-atoms cluster closer to the π-hole of NO3−when nitrate is coordinated to a metal.
Collapse
Affiliation(s)
- Tiddo J. Mooibroek
- van ‘t Hoff Institute for Molecular Sciences
- Universiteit van Amsterdam
- 1098 XH Amsterdam
- The Netherlands
| |
Collapse
|
30
|
Sharma H, Saha B, Bhattacharyya PK. Sandwiches of N-doped diamondoids and benzene vialone pair–cation and cation–pi interaction: a DFT study. NEW J CHEM 2017. [DOI: 10.1039/c7nj02467c] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Cation–lone pair and cation–pi interactions in the complexes of N-doped dimondoids.
Collapse
Affiliation(s)
- Himakshi Sharma
- Department of Chemistry
- Arya Vidyapeeth College
- Gauhati University
- Guwahati
- India
| | - Bapan Saha
- Department of Chemistry
- Arya Vidyapeeth College
- Gauhati University
- Guwahati
- India
| | | |
Collapse
|
31
|
Modulation in π⋯π, cation⋯π and C–H⋯H–C interactions varying the counter anions in square planar nickel(II) Schiff base complexes: A combined experimental and theoretical study. Polyhedron 2016. [DOI: 10.1016/j.poly.2016.08.047] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
|
32
|
|
33
|
Al Kobaisi M, Bhosale SV, Latham K, Raynor AM, Bhosale SV. Functional Naphthalene Diimides: Synthesis, Properties, and Applications. Chem Rev 2016; 116:11685-11796. [DOI: 10.1021/acs.chemrev.6b00160] [Citation(s) in RCA: 557] [Impact Index Per Article: 69.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Mohammad Al Kobaisi
- School
of Applied Sciences, RMIT University
, GPO Box 2476, Melbourne, Victoria
3001, Australia
| | - Sidhanath V. Bhosale
- Polymers
and Functional Materials Division, CSIR-Indian Institute of Chemical Technology
, Hyderabad, Telangana-500007, India
| | - Kay Latham
- School
of Applied Sciences, RMIT University
, GPO Box 2476, Melbourne, Victoria
3001, Australia
| | - Aaron M. Raynor
- School
of Applied Sciences, RMIT University
, GPO Box 2476, Melbourne, Victoria
3001, Australia
| | - Sheshanath V. Bhosale
- School
of Applied Sciences, RMIT University
, GPO Box 2476, Melbourne, Victoria
3001, Australia
| |
Collapse
|
34
|
Savastano M, Bazzicalupi C, Giorgi C, García-Gallarín C, López de la Torre MD, Pichierri F, Bianchi A, Melguizo M. Anion Complexes with Tetrazine-Based Ligands: Formation of Strong Anion-π Interactions in Solution and in the Solid State. Inorg Chem 2016; 55:8013-24. [PMID: 27454810 DOI: 10.1021/acs.inorgchem.6b01138] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Ligands L1 and L2, consisting of a tetrazine ring decorated with two morpholine pendants of different lengths, show peculiar anion-binding behaviors. In several cases, even the neutral ligands, in addition to their protonated HL(+) and H2L(2+) (L = L1 and L2) forms, bind anions such as F(-), NO3(-), PF6(-), ClO4(-), and SO4(2-) to form stable complexes in water. The crystal structures of H2L1(PF6)2·2H2O, H2L1(ClO4)2·2H2O, H2L2(NO3)2, H2L2(PF6)2·H2O, and H2L2(ClO4)2·H2O show that anion-π interactions are pivotal for the formation of these complexes, although other weak forces may contribute to their stability. Complex stability constants were determined by means of potentiometric titration in aqueous solution at 298.1 K, while dissection of the free-energy change of association (ΔG°) into its enthalpic (ΔH°) and entropic (TΔS°) components was accomplished by means of isothermal titration calorimetry measurements. Stability constants are poorly regulated by anion-ligand charge-charge attraction. Thermodynamic data show that the formation of complexes with neutral ligands, which are principally stabilized by anion-π interactions, is enthalpically favorable (-ΔG°, 11.1-17.5 kJ/mol; ΔH°, -2.3 to -0.5 kJ/mol; TΔS°, 9.0-17.0 kJ/mol), while for charged ligands, enthalpy changes are mostly unfavorable. Complexation reactions are invariably promoted by large and favorable entropic contributions. The importance of desolvation phenomena manifested by such thermodynamic data was confirmed by the hydrodynamic results obtained by means of diffusion NMR spectroscopy. In the case of L2, complexation equilibria were also studied in a 80:20 (v/v) water/ethanol mixture. In this mixed solvent of lower dielectric constant than water, the stability of anion complexes decreases, relative to water. Solvation effects, mostly involving the ligand, are thought to be responsible for this peculiar behavior.
Collapse
Affiliation(s)
- Matteo Savastano
- Department of Chemistry "Ugo Schiff", University of Florence , Via della Lastruccia 3, 50019 Sesto Fiorentino, Italy
| | - Carla Bazzicalupi
- Department of Chemistry "Ugo Schiff", University of Florence , Via della Lastruccia 3, 50019 Sesto Fiorentino, Italy
| | - Claudia Giorgi
- Department of Chemistry "Ugo Schiff", University of Florence , Via della Lastruccia 3, 50019 Sesto Fiorentino, Italy
| | | | | | - Fabio Pichierri
- Department of Applied Chemistry, Graduate School of Engineering, Tohoku University , 980-8579 Sendai, Japan
| | - Antonio Bianchi
- Department of Chemistry "Ugo Schiff", University of Florence , Via della Lastruccia 3, 50019 Sesto Fiorentino, Italy
| | - Manuel Melguizo
- Department of Inorganic and Organic Chemistry, University of Jaén , 23071 Jaén, Spain
| |
Collapse
|
35
|
Nalluri SKM, Liu Z, Wu Y, Hermann KR, Samanta A, Kim DJ, Krzyaniak MD, Wasielewski MR, Stoddart JF. Chiral Redox-Active Isosceles Triangles. J Am Chem Soc 2016; 138:5968-77. [DOI: 10.1021/jacs.6b02086] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Siva Krishna Mohan Nalluri
- Department of Chemistry and ‡Argonne-Northwestern
Solar Energy Research (ANSER)
Center, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208-3113, United States
| | - Zhichang Liu
- Department of Chemistry and ‡Argonne-Northwestern
Solar Energy Research (ANSER)
Center, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208-3113, United States
| | - Yilei Wu
- Department of Chemistry and ‡Argonne-Northwestern
Solar Energy Research (ANSER)
Center, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208-3113, United States
| | - Keith R. Hermann
- Department of Chemistry and ‡Argonne-Northwestern
Solar Energy Research (ANSER)
Center, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208-3113, United States
| | - Avik Samanta
- Department of Chemistry and ‡Argonne-Northwestern
Solar Energy Research (ANSER)
Center, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208-3113, United States
| | - Dong Jun Kim
- Department of Chemistry and ‡Argonne-Northwestern
Solar Energy Research (ANSER)
Center, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208-3113, United States
| | - Matthew D. Krzyaniak
- Department of Chemistry and ‡Argonne-Northwestern
Solar Energy Research (ANSER)
Center, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208-3113, United States
| | - Michael R. Wasielewski
- Department of Chemistry and ‡Argonne-Northwestern
Solar Energy Research (ANSER)
Center, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208-3113, United States
| | - J. Fraser Stoddart
- Department of Chemistry and ‡Argonne-Northwestern
Solar Energy Research (ANSER)
Center, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208-3113, United States
| |
Collapse
|
36
|
Takai A, Sakamaki D, Seki S, Matsushita Y, Takeuchi M. Ferrocene‐Substituted Naphthalenediimide with Broad Absorption and Electron‐Transport Properties in the Segregated‐Stack Structure. Chemistry 2016; 22:7385-8. [DOI: 10.1002/chem.201600196] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2016] [Indexed: 11/09/2022]
Affiliation(s)
- Atsuro Takai
- International Center for Young Scientists and Molecular Design & Function Group National Institute for Materials Science (NIMS) 1-2-1 Sengen, Tsukuba Ibaraki 305-0047 Japan
| | - Daisuke Sakamaki
- Department of Molecular Engineering Kyoto University, Nishikyo-ku Kyoto 615-8510 Japan
| | - Shu Seki
- Department of Molecular Engineering Kyoto University, Nishikyo-ku Kyoto 615-8510 Japan
| | - Yoshitaka Matsushita
- Materials Analysis Station National Institute for Materials Science (NIMS) 1-2-1 Sengen, Tsukuba Ibaraki 305-0047 Japan
| | - Masayuki Takeuchi
- International Center for Young Scientists and Molecular Design & Function Group National Institute for Materials Science (NIMS) 1-2-1 Sengen, Tsukuba Ibaraki 305-0047 Japan
| |
Collapse
|
37
|
Gasparini G, Bang EK, Montenegro J, Matile S. Cellular uptake: lessons from supramolecular organic chemistry. Chem Commun (Camb) 2016; 51:10389-402. [PMID: 26030211 DOI: 10.1039/c5cc03472h] [Citation(s) in RCA: 114] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The objective of this Feature Article is to reflect on the importance of established and emerging principles of supramolecular organic chemistry to address one of the most persistent problems in life sciences. The main topic is dynamic covalent chemistry on cell surfaces, particularly disulfide exchange for thiol-mediated uptake. Examples of boronate and hydrazone exchange are added for contrast, comparison and completion. Of equal importance are the discussions of proximity effects in polyions and counterion hopping, and more recent highlights on ring tension and ion pair-π interactions. These lessons from supramolecular organic chemistry apply to cell-penetrating peptides, particularly the origin of "arginine magic" and the "pyrenebutyrate trick," and the currently emerging complementary "disulfide magic" with cell-penetrating poly(disulfide)s. They further extend to the voltage gating of neuronal potassium channels, gene transfection, and the delivery of siRNA. The collected examples illustrate that the input from conceptually innovative chemistry is essential to address the true challenges in biology beyond incremental progress and random screening.
Collapse
Affiliation(s)
- Giulio Gasparini
- School of Chemistry and Biochemistry, University of Geneva, Geneva, Switzerland.
| | | | | | | |
Collapse
|
38
|
López-Andarias J, Bolag A, Nançoz C, Vauthey E, Atienza C, Sakai N, Martín N, Matile S. Electron-deficient fullerenes in triple-channel photosystems. Chem Commun (Camb) 2016; 51:7543-5. [PMID: 25846676 DOI: 10.1039/c5cc01551k] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Fullerenes of increasing electron deficiency are designed, synthesized and evaluated in multicomponent surface architectures to ultimately build gradients in LUMO levels with nine components over 350 meV down to -4.22 eV.
Collapse
Affiliation(s)
- Javier López-Andarias
- Departamento de Química Orgánica, Universidad Complutense, IMDEA-Nanoscience, Madrid, Spain.
| | | | | | | | | | | | | | | |
Collapse
|
39
|
Miros FN, Zhao Y, Sargsyan G, Pupier M, Besnard C, Beuchat C, Mareda J, Sakai N, Matile S. Enolate Stabilization by Anion-π Interactions: Deuterium Exchange in Malonate Dilactones on π-Acidic Surfaces. Chemistry 2015; 22:2648-57. [DOI: 10.1002/chem.201504008] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2015] [Indexed: 01/04/2023]
Affiliation(s)
- François N. Miros
- Department of Organic Chemistry; University of Geneva; Geneva Switzerland), Fax
| | - Yingjie Zhao
- Department of Organic Chemistry; University of Geneva; Geneva Switzerland), Fax
- Institute of Polymers; ETH Zurich; Zurich Switzerland
- Qingdao University of Science and Technology; P. R. China
| | - Gevorg Sargsyan
- Department of Organic Chemistry; University of Geneva; Geneva Switzerland), Fax
- South Texas College; McAllen Texas USA
| | - Marion Pupier
- Department of Organic Chemistry; University of Geneva; Geneva Switzerland), Fax
| | - Céline Besnard
- Department of Organic Chemistry; University of Geneva; Geneva Switzerland), Fax
| | - César Beuchat
- Department of Organic Chemistry; University of Geneva; Geneva Switzerland), Fax
- AKYADO; Remaufens Switzerland
| | - Jiri Mareda
- Department of Organic Chemistry; University of Geneva; Geneva Switzerland), Fax
| | - Naomi Sakai
- Department of Organic Chemistry; University of Geneva; Geneva Switzerland), Fax
| | - Stefan Matile
- Department of Organic Chemistry; University of Geneva; Geneva Switzerland), Fax
| |
Collapse
|
40
|
Zhao Y, Benz S, Sakai N, Matile S. Selective acceleration of disfavored enolate addition reactions by anion-π interactions. Chem Sci 2015; 6:6219-6223. [PMID: 30090238 PMCID: PMC6054047 DOI: 10.1039/c5sc02563j] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2015] [Accepted: 08/05/2015] [Indexed: 01/17/2023] Open
Abstract
In chemistry and biology, cation-π interactions contribute significantly to many important transformations. In sharp contrast, reactions accomplished with support from the complementary anion-π interactions are essentially unknown. In this report, we show that anion-π interactions can determine the selectivity of the enolate chemistry of malonate half thioesters. Their addition to enolate acceptors is central in natural product biosynthesis but fails without enzymes because non-productive decarboxylation dominates. The newly designed and synthesized anion-π tweezers invert this selectivity by accelerating the disfavored and decelerating the favored process. The discrimination of anionic tautomers of different planarization and charge delocalization on π-acidic surfaces is expected to account for this intriguing "tortoise-and-hare catalysis." Almost exponentially increasing selectivity with increasing π acidity of the catalyst supports that contributions from anion-π interactions are decisive.
Collapse
Affiliation(s)
- Yingjie Zhao
- Department of Organic Chemistry , University of Geneva , Geneva , Switzerland . ; http://www.unige.ch/sciences/chiorg/matile/ ; ; Tel: +41 22 379 6523
| | - Sebastian Benz
- Department of Organic Chemistry , University of Geneva , Geneva , Switzerland . ; http://www.unige.ch/sciences/chiorg/matile/ ; ; Tel: +41 22 379 6523
| | - Naomi Sakai
- Department of Organic Chemistry , University of Geneva , Geneva , Switzerland . ; http://www.unige.ch/sciences/chiorg/matile/ ; ; Tel: +41 22 379 6523
| | - Stefan Matile
- Department of Organic Chemistry , University of Geneva , Geneva , Switzerland . ; http://www.unige.ch/sciences/chiorg/matile/ ; ; Tel: +41 22 379 6523
| |
Collapse
|
41
|
Zhao Y, Cotelle Y, Avestro AJ, Sakai N, Matile S. Asymmetric Anion-π Catalysis: Enamine Addition to Nitroolefins on π-Acidic Surfaces. J Am Chem Soc 2015; 137:11582-5. [DOI: 10.1021/jacs.5b07382] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Yingjie Zhao
- Department
of Organic Chemistry, University of Geneva, Geneva CH-1211, Switzerland
| | - Yoann Cotelle
- Department
of Organic Chemistry, University of Geneva, Geneva CH-1211, Switzerland
| | - Alyssa-Jennifer Avestro
- Department
of Organic Chemistry, University of Geneva, Geneva CH-1211, Switzerland
- Department
of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - Naomi Sakai
- Department
of Organic Chemistry, University of Geneva, Geneva CH-1211, Switzerland
| | - Stefan Matile
- Department
of Organic Chemistry, University of Geneva, Geneva CH-1211, Switzerland
| |
Collapse
|
42
|
Wu Y, Nalluri SKM, Young RM, Krzyaniak MD, Margulies EA, Stoddart JF, Wasielewski MR. Charge and Spin Transport in an Organic Molecular Square. Angew Chem Int Ed Engl 2015; 54:11971-7. [DOI: 10.1002/anie.201504576] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2015] [Indexed: 11/06/2022]
|
43
|
Wu Y, Nalluri SKM, Young RM, Krzyaniak MD, Margulies EA, Stoddart JF, Wasielewski MR. Charge and Spin Transport in an Organic Molecular Square. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201504576] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
|
44
|
Fujisawa K, Humbert-Droz M, Letrun R, Vauthey E, Wesolowski TA, Sakai N, Matile S. Ion Pair−π Interactions. J Am Chem Soc 2015; 137:11047-56. [DOI: 10.1021/jacs.5b05593] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Kaori Fujisawa
- School of Chemistry and Biochemistry, University of Geneva, CH-1211 Geneva, Switzerland
| | - Marie Humbert-Droz
- School of Chemistry and Biochemistry, University of Geneva, CH-1211 Geneva, Switzerland
| | - Romain Letrun
- School of Chemistry and Biochemistry, University of Geneva, CH-1211 Geneva, Switzerland
| | - Eric Vauthey
- School of Chemistry and Biochemistry, University of Geneva, CH-1211 Geneva, Switzerland
| | - Tomasz A. Wesolowski
- School of Chemistry and Biochemistry, University of Geneva, CH-1211 Geneva, Switzerland
| | - Naomi Sakai
- School of Chemistry and Biochemistry, University of Geneva, CH-1211 Geneva, Switzerland
| | - Stefan Matile
- School of Chemistry and Biochemistry, University of Geneva, CH-1211 Geneva, Switzerland
| |
Collapse
|
45
|
Affiliation(s)
- Michael Giese
- Institut
für Organische Chemie, Universität Duisburg Essen, Universitätsstraße
7, 45141 Essen, Germany
| | - Markus Albrecht
- Institut
für Organische Chemie, RWTH Aachen University, Landoltweg
1, 52074 Aachen, Germany
| | - Kari Rissanen
- Department
of Chemistry, Nanoscience Center, University of Jyvaskyla, P.O. Box. 35, FI-40014 Jyvaskylan yliopisto, Finland
| |
Collapse
|
46
|
Anion Recognition by Pyrylium Cations and Thio-, Seleno- and Telluro- Analogues: A Combined Theoretical and Cambridge Structural Database Study. Molecules 2015; 20:11632-59. [PMID: 26114926 PMCID: PMC6332262 DOI: 10.3390/molecules200711632] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2015] [Revised: 06/17/2015] [Accepted: 06/18/2015] [Indexed: 01/04/2023] Open
Abstract
Pyrylium salts are a very important class of organic molecules containing a trivalent oxygen atom in a six-membered aromatic ring. In this manuscript, we report a theoretical study of pyrylium salts and their thio-, seleno- and telluro- analogues by means of DFT calculations. For this purpose, unsubstituted 2,4,6-trimethyl and 2,4,6-triphenyl cations and anions with different morphologies were chosen (Cl–, NO3– and BF4–). The complexes were characterized by means of natural bond orbital and “atoms-in-molecules” theories, and the physical nature of the interactions has been analyzed by means of symmetry-adapted perturbation theory calculations. Our results indicate the presence of anion-π interactions and chalcogen bonds based on both σ- and π-hole interactions and the existence of very favorable σ-complexes, especially for unsubstituted cations. The electrostatic component is dominant in the interactions, although the induction contributions are important, particularly for chloride complexes. The geometrical features of the complexes have been compared with experimental data retrieved from the Cambridge Structural Database.
Collapse
|
47
|
Lucas X, Bauzá A, Frontera A, Quiñonero D. A thorough anion-π interaction study in biomolecules: on the importance of cooperativity effects. Chem Sci 2015; 7:1038-1050. [PMID: 29899893 PMCID: PMC5967298 DOI: 10.1039/c5sc01386k] [Citation(s) in RCA: 158] [Impact Index Per Article: 17.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2015] [Accepted: 06/05/2015] [Indexed: 12/23/2022] Open
Abstract
The importance of anion–π interactions in key biological processes is reported from a PDB analysis of anion–π interactions in biomolecules, also considering cooperativity effects by including other interactions.
Noncovalent interactions have a constitutive role in the science of intermolecular relationships, particularly those involving aromatic rings such as π–π and cation–π. In recent years, anion–π contact has also been recognized as a noncovalent bonding interaction with important implications in chemical processes. Yet, its involvement in biological processes has been scarcely reported. Herein we present a large-scale PDB analysis of the occurrence of anion–π interactions in proteins and nucleic acids. In addition we have gone a step further by considering the existence of cooperativity effects through the inclusion of a second noncovalent interaction, i.e. π-stacking, T-shaped, or cation–π interactions to form anion–π–π and anion–π–cation triads. The statistical analysis of the thousands of identified interactions reveals striking selectivities and subtle cooperativity effects among the anions, π-systems, and cations in a biological context. The reported results stress the importance of anion–π interactions and the cooperativity that arises from ternary contacts in key biological processes, such as protein folding and function and nucleic acids–protein and protein–protein recognition. We include examples of anion–π interactions and triads putatively involved in enzymatic catalysis, epigenetic gene regulation, antigen–antibody recognition, and protein dimerization.
Collapse
Affiliation(s)
- Xavier Lucas
- Pharmaceutical Bioinformatics , Institute of Pharmaceutical Sciences , Albert-Ludwigs-University , Hermann-Herder-Str. 9 , D-79104 Freiburg , Germany . ; ; Tel: +34 971173498
| | - Antonio Bauzá
- Departament de Química , Universitat de les Illes Balears , Crta. de Valldemossa km 7.5 , 07122 Palma de Mallorca , Spain .
| | - Antonio Frontera
- Departament de Química , Universitat de les Illes Balears , Crta. de Valldemossa km 7.5 , 07122 Palma de Mallorca , Spain .
| | - David Quiñonero
- Departament de Química , Universitat de les Illes Balears , Crta. de Valldemossa km 7.5 , 07122 Palma de Mallorca , Spain .
| |
Collapse
|
48
|
Wheeler SE, Bloom JWG. Anion-π interactions and positive electrostatic potentials of N-heterocycles arise from the positions of the nuclei, not changes in the π-electron distribution. Chem Commun (Camb) 2015; 50:11118-21. [PMID: 25116837 DOI: 10.1039/c4cc05304d] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
We show that the positive electrostatic potentials and molecular quadrupole moments characteristic of π-acidic azines, which underlie the ability of these rings to bind anions above their centres, arise from the position of nuclear charges, not changes in the π-electron density distribution.
Collapse
Affiliation(s)
- Steven E Wheeler
- Department of Chemistry, Texas A&M University, College Station, TX, USA.
| | | |
Collapse
|
49
|
Holland MC, Metternich JB, Daniliuc C, Schweizer WB, Gilmour R. Aromatic Interactions in Organocatalyst Design: Augmenting Selectivity Reversal in Iminium Ion Activation. Chemistry 2015; 21:10031-8. [PMID: 25982418 DOI: 10.1002/chem.201500270] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2015] [Indexed: 12/12/2022]
Abstract
Substituting N-methylpyrrole for N-methyindole in secondary-amine-catalysed Friedel-Crafts reactions leads to a curious erosion of enantioselectivity. In extreme cases, this substrate dependence can lead to an inversion in the sense of enantioinduction. Indeed, these closely similar transformations require two structurally distinct catalysts to obtain comparable selectivities. Herein a focussed molecular editing study is disclosed to illuminate the structural features responsible for this disparity, and thus identify lead catalyst structures to further exploit this selectivity reversal. Key to effective catalyst re-engineering was delineating the non-covalent interactions that manifest themselves in conformation. Herein we disclose preliminary validation that intermolecular aromatic (CH-π and cation-π) interactions between the incipient iminium cation and the indole ring system is key to rationalising selectivity reversal. This is absent in the N-methylpyrrole alkylation, thus forming the basis of two competing enantio-induction pathways. A simple L-valine catalyst has been developed that significantly augments this interaction.
Collapse
Affiliation(s)
- Mareike C Holland
- Institut für Organische Chemie, Westfälische Wilhelms-Universität Münster, Corrensstrasse 40, 48149 Münster (Germany) http://www.uni-muenster.de/Chemie.oc/gilmour/,Current address: Department of Chemistry and Biochemistry, University of California Los Angeles, 607 Charles E. Young Drive East, Los Angeles 90095-1569 (USA)
| | - Jan Benedikt Metternich
- Institut für Organische Chemie, Westfälische Wilhelms-Universität Münster, Corrensstrasse 40, 48149 Münster (Germany) http://www.uni-muenster.de/Chemie.oc/gilmour/
| | - Constantin Daniliuc
- Institut für Organische Chemie, Westfälische Wilhelms-Universität Münster, Corrensstrasse 40, 48149 Münster (Germany) http://www.uni-muenster.de/Chemie.oc/gilmour/
| | - W Bernd Schweizer
- Laboratorium für Organische Chemie, ETH Zürich, Vladimir-Prelog-Weg 3, 8093 Zürich (Switzerland)
| | - Ryan Gilmour
- Institut für Organische Chemie, Westfälische Wilhelms-Universität Münster, Corrensstrasse 40, 48149 Münster (Germany) http://www.uni-muenster.de/Chemie.oc/gilmour/. .,Excellence Cluster EXC 1003 "Cells in Motion", Westfälische Wilhelms-Universität Münster, Münster (Germany).
| |
Collapse
|
50
|
|