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Matuszewska O, Battisti T, Ferreira RR, Biot N, Demitri N, Mézière C, Allain M, Sallé M, Mañas-Valero S, Coronado E, Fresta E, Costa RD, Bonifazi D. Tweaking the Optoelectronic Properties of S-Doped Polycyclic Aromatic Hydrocarbons by Chemical Oxidation. Chemistry 2023; 29:e202203115. [PMID: 36333273 DOI: 10.1002/chem.202203115] [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: 10/06/2022] [Revised: 11/04/2022] [Accepted: 11/04/2022] [Indexed: 11/07/2022]
Abstract
Peri-thiaxanthenothiaxanthene, an S-doped analog of peri-xanthenoxanthene, is used as a polycyclic aromatic hydrocarbon (PAH) scaffold to tune the molecular semiconductor properties by editing the oxidation state of the S-atoms. Chemical oxidation of peri-thiaxanthenothiaxanthene with H2 O2 led to the relevant sulfoxide and sulfone congeners, whereas electrooxidation gave access to sulfonium-type derivatives forming crystalline mixed valence (MV) complexes. These complexes depicted peculiar molecular and solid-state arrangements with face-to-face π-π stacking organization. Photophysical studies showed a widening of the optical bandgap upon progressive oxidation of the S-atoms, with the bis-sulfone derivative displaying the largest value (E00 =2.99 eV). While peri-thiaxanthenothiaxanthene showed reversible oxidation properties, the sulfoxide and sulfone derivatives mainly showed reductive events, corroborating their n-type properties. Electric measurements of single crystals of the MV complexes exhibited a semiconducting behavior with a remarkably high conductivity at room temperature (10-1 -10-2 S cm-1 and 10-2 -10-3 S cm-1 for the O and S derivatives, respectively), one of the highest reported so far. Finally, the electroluminescence properties of the complexes were tested in light-emitting electrochemical cells (LECs), obtaining the first S-doped mid-emitting PAH-based LECs.
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Affiliation(s)
- Oliwia Matuszewska
- School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff, CF10 3AT, UK
| | - Tommaso Battisti
- School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff, CF10 3AT, UK
| | - Ruben R Ferreira
- Institute of Organic Chemistry, University of Vienna, 1090, Vienna, Austria
| | - Nicolas Biot
- School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff, CF10 3AT, UK
| | - Nicola Demitri
- Elettra-Sincrotrone Trieste, S.S. 14 Km 163.5 in Area Science Park, 34149 Basovizza, Trieste, Italy
| | - Cécile Mézière
- MOLTECH-Anjou-UMR CNRS 6200, UNIV Angers, SFR Matrix, 2 Boulevard Lavoisier, 49045, Angers Cedex, France
| | - Magali Allain
- MOLTECH-Anjou-UMR CNRS 6200, UNIV Angers, SFR Matrix, 2 Boulevard Lavoisier, 49045, Angers Cedex, France
| | - Marc Sallé
- MOLTECH-Anjou-UMR CNRS 6200, UNIV Angers, SFR Matrix, 2 Boulevard Lavoisier, 49045, Angers Cedex, France
| | - Samuel Mañas-Valero
- Instituto de Ciencia Molecular, Universitat de València, Catedrático José Beltrán 2, 46980, Paterna, Spain
| | - Eugenio Coronado
- Instituto de Ciencia Molecular, Universitat de València, Catedrático José Beltrán 2, 46980, Paterna, Spain
| | - Elisa Fresta
- Chair of Biogenic Functional Materials, Technical University Munich, Schulgasse 22, 94315, Straubing, Germany
| | - Rubén D Costa
- Chair of Biogenic Functional Materials, Technical University Munich, Schulgasse 22, 94315, Straubing, Germany
| | - Davide Bonifazi
- School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff, CF10 3AT, UK.,Institute of Organic Chemistry, University of Vienna, 1090, Vienna, Austria
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2
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Ren B, Lu Y, Wang R, Liu H. First-principles study of chalcogen-bonded self-assembly structures on silicene: some insight into the fabrication of molecular architectures on surfaces through chalcogen bonding. Chem Phys 2022. [DOI: 10.1016/j.chemphys.2022.111763] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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3
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Romito D, Fresta E, Cavinato LM, Kählig H, Amenitsch H, Caputo L, Chen Y, Samorì P, Charlier J, Costa RD, Bonifazi D. Supramolecular Chalcogen‐Bonded Semiconducting Nanoribbons at Work in Lighting Devices. Angew Chem Int Ed Engl 2022; 61:e202202137. [PMID: 35274798 PMCID: PMC9544418 DOI: 10.1002/anie.202202137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Indexed: 11/24/2022]
Abstract
This work describes the design and synthesis of a π‐conjugated telluro[3,2‐β][1]‐tellurophene‐based synthon that, embodying pyridyl and haloaryl chalcogen‐bonding acceptors, self‐assembles into nanoribbons through chalcogen bonds. The ribbons π‐stack in a multi‐layered architecture both in single crystals and thin films. Theoretical studies of the electronic states of chalcogen‐bonded material showed the presence of a local charge density between Te and N atoms. OTFT‐based charge transport measurements showed hole‐transport properties for this material. Its integration as a p‐type semiconductor in multi‐layered CuI‐based light‐emitting electrochemical cells (LECs) led to a 10‐fold increase in stability (38 h vs. 3 h) compared to single‐layered devices. Finally, using the reference tellurotellurophene congener bearing a C−H group instead of the pyridyl N atom, a herringbone solid‐state assembly is formed without charge transport features, resulting in LECs with poor stabilities (<1 h).
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Affiliation(s)
- Deborah Romito
- Department of Organic Chemistry Faculty of Chemistry University of Vienna Währinger Straße 38 1090 Vienna Austria
| | - Elisa Fresta
- Technical University of Munich Chair of Biogenic Functional Materials Schulgasse 22 94315 Straubing Germany
| | - Luca M. Cavinato
- Technical University of Munich Chair of Biogenic Functional Materials Schulgasse 22 94315 Straubing Germany
| | - Hanspeter Kählig
- Department of Organic Chemistry Faculty of Chemistry University of Vienna Währinger Straße 38 1090 Vienna Austria
| | - Heinz Amenitsch
- Graz University of Technology Institute for Inorganic Chemistry Stremayergasse 9/V 8010 Graz Austria
| | - Laura Caputo
- Institute of Condensed Matter and Nanosciences Université catholique de Louvain (UCLouvain) Chemin des étoiles 8 1348 Louvain-la-Neuve Belgium
| | - Yusheng Chen
- Université de Strasbourg, CNRS, ISIS 8 allée Gaspard Monge 67000 Strasbourg France
| | - Paolo Samorì
- Université de Strasbourg, CNRS, ISIS 8 allée Gaspard Monge 67000 Strasbourg France
| | - Jean‐Christophe Charlier
- Institute of Condensed Matter and Nanosciences Université catholique de Louvain (UCLouvain) Chemin des étoiles 8 1348 Louvain-la-Neuve Belgium
| | - Rubén D. Costa
- Technical University of Munich Chair of Biogenic Functional Materials Schulgasse 22 94315 Straubing Germany
| | - Davide Bonifazi
- Department of Organic Chemistry Faculty of Chemistry University of Vienna Währinger Straße 38 1090 Vienna Austria
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4
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Karaj E, Sindi SH, Kuganesan N, Perera L, Taylor W, Viranga Tillekeratne LM. Tunable Cysteine-Targeting Electrophilic Heteroaromatic Warheads Induce Ferroptosis. J Med Chem 2022; 65:11788-11817. [PMID: 35984756 PMCID: PMC10408038 DOI: 10.1021/acs.jmedchem.2c00909] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Once considered potential liabilities, the modern era witnesses a renaissance of interest in covalent inhibitors in drug discovery. The available toolbox of electrophilic warheads is limited by constraints on tuning reactivity and selectivity. Following our work on a class of ferroptotic agents termed CETZOLEs, we discovered new tunable heterocyclic electrophiles which are capable of inducing ferroptosis. The biological evaluation demonstrated that thiazoles with an alkyne electrophile at the 2-position selectively induce ferroptosis with high potency. Density functional theory calculations and NMR kinetic studies demonstrated the ability of our heterocycles to undergo thiol addition, an apparent prerequisite for cytotoxicity. Chemoproteomic analysis indicated several potential targets, the most prominent among them being GPX4 protein. These results were further validated by western blot analysis and the cellular thermal shift assay. Incorporation of these heterocycles into appropriate pharmacophores generated highly cytotoxic agents such as the analogue BCP-T.A, with low nM IC50 values in ferroptosis-sensitive cell lines.
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Affiliation(s)
- Endri Karaj
- Department of Medicinal and Biological Chemistry, College of Pharmacy and Pharmaceutical Sciences, University of Toledo, Toledo, OH 43606
| | - Shaimaa H. Sindi
- Department of Medicinal and Biological Chemistry, College of Pharmacy and Pharmaceutical Sciences, University of Toledo, Toledo, OH 43606
| | - Nishanth Kuganesan
- Department of Biological Sciences, College of Natural Sciences and Mathematics, University of Toledo, Toledo, OH 43606
| | - Lalith Perera
- Laboratory of Genome Integrity and Structural Biology, National Institute of Environmental Health Sciences, National Institutes of Health, Department of Health and Human Services, Research Triangle Park, NC 27709, USA
| | - William Taylor
- Department of Biological Sciences, College of Natural Sciences and Mathematics, University of Toledo, Toledo, OH 43606
| | - L. M. Viranga Tillekeratne
- Department of Medicinal and Biological Chemistry, College of Pharmacy and Pharmaceutical Sciences, University of Toledo, Toledo, OH 43606
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Franklin D, Lee A, Fronczek FR, Junk T. [1,4]Ditellurino[2,3- b:5,6- b′]dipyrazine. IUCRDATA 2022; 7:x220622. [PMID: 36339891 PMCID: PMC9462040 DOI: 10.1107/s2414314622006228] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Accepted: 06/13/2022] [Indexed: 11/10/2022] Open
Abstract
The title compound, C8H4N4Te2, is the first reported [1,4]tellura[2,3-b:5,6-b′]dipyrazine. Three independent unit-cell molecules are folded along their Te⋯Te axes, with an average angle φ = 57.9°. C—Te—C angles range from 91.48 (6) to 93.80 (6)°. Intermolecular N⋯Te bonding interactions between tellurium atoms of the central ring and the pyrazine N atoms of adjacent molecules result in a supramolecular helix motif. [1,4]Ditellurino[2,3-b:5,6-b′]dipyrazine represents the first reported [1,4]chalcogena[2,3-b:5,6-b′]dipyrazine containing a heavy chalcogens The asymmetric unit consists of three molecules. In contrast to its sulfur analog, which is planar [Lynch et al. (1994 ▸) Cryst. Struct. Commun.50,1470–1472], C8H4N4Te2 is folded along the Te⋯Te axis to accommodate the larger chalcogenide atoms. The dihedral angle between the two Te2C2 rings of the central ring is 57.9° (mean of three). C—Te bond lengths range from 2.1105 (16) Å to 2.1381 (17) Å, in good agreement with those predicted by their covalent radii. All Te atoms are involved in intermolecular Te⋯N contacts, with distances in the range 2.894 (2) to 2.963 (2) Å. These result in a spiral supramolecular assembly, forming helical columns.![]()
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Shao W, Kim J. Metal-Free Organic Phosphors toward Fast and Efficient Room-Temperature Phosphorescence. Acc Chem Res 2022; 55:1573-1585. [PMID: 35613040 DOI: 10.1021/acs.accounts.2c00146] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
ConspectusMetal-free purely organic phosphors (POPs) are promising materials for display technologies, solid-state lighting, and sensors platforms because of their advantageous properties such as large design windows, easy processability, and economic material cost. Unlike inorganic semiconductors, creating the conditions for triplet excitons to produce light in organic materials is a demanding task because of the presence of electron spin configurations that undergo spin-forbidden transitions, which is usually facilitated by spin-orbit coupling (SOC). In the absence of heavy metals, however, the SOC efficiency in POPs remains low, and consequently, external nonradiative photophysical processes will also severely affect triplet excitons. Addressing these challenges requires the development of rational molecular design principles to accurately account for how all conceivable structural, electronic, chemical, compositional factors affect materials performance.This Account summarizes important molecular design and matrix engineering strategies to tackle the two key challenges for POPs─boosting SOC efficiencies and suppressing nonradiative decays. We start by reviewing the fundamental understanding of internal and external factors affecting the emission efficiencies of POPs, including the theory behind SOC and the origin of nonradiative decays. Subsequently, we discuss the design of contemporary POP systems on the basis of research insights from our group and others, where SOC is mostly promoted by heavy atom effects and the El-Sayed rule. On one hand, nonmetal heavy atoms including Br, I, or Se provide the heavy atom effects to boost SOC. On the other hand, the El-Sayed rule addresses the necessity of orbital angular momentum change in SOC and the general utilization of carbonyl, heterocyclic rings, and other moieties with rich nonbonding electrons. Because of the slow-decaying nature of triplet excitons, engineering the matrices of POPs is critical to effectively suppress collisional quenching as the major nonradiative decay route, thus achieving POPs with decent room temperature quantum efficiency. For that purpose, crystalline or rigid amorphous matrices have been implemented along with specific intermolecular forces between POPs and their environment.Despite the great efforts made in the past decade, the intrinsic SOC efficiencies of POPs remain low, and their emission lifetimes are pinned in the millisecond to second regime. While this is beneficial for POPs with ultralong emission, designing high-SOC POPs with simultaneous fast decay and high quantum efficiencies is particularly advantageous for display systems. Following the design of contemporary POPs, we will discuss molecular design descriptors that could potentially break the current limit to boost internal SOC in purely organic materials. Our recently developed concept of "heavy atom oriented orbital angular momentum manipulation" will be discussed, accompanied by a rich and expanded library of fast and efficient POP molecules, which serves as a stepping stone into the future of this field. We will conclude this Account by discussing the noteworthy application of POPs in organic light-emitting diodes (OLEDs), solid-state lighting, and sensors, as well as the remaining challenges in the design of fast and efficient POPs.
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7
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Romito D, Amendolare L, Bonifazi D, Kalathil KK. Expanding the Library of 2-Phenylbenzotellurazoles: Red-Shifting Effect of Ethoxy Functionalities on the UV/Vis Absorption Properties. SYNTHESIS-STUTTGART 2022. [DOI: 10.1055/s-0041-1737898] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
AbstractThis work describes the high-yield synthesis of a novel series of benzotellurazoles bearing a phenyl ring in 2-position, which is differently functionalized with ethoxy chains. Changing the number and the position of these functional groups determines differences in the self-assembly in the solid state, as well as in the photophysical properties of the targeted molecules. As anticipated by theoretical calculations of the HOMO-LUMO gap of each molecule, the presence of ethoxy chains in o- and p-positions determines up to 20 nm red-shifts in the absorption peaks, when compared to unsubstituted benzotellurazole. Similarly, more significant changes are observed in the chemical shifts of 125Te NMR spectra for those derivatives bearing o- and p-ethoxy functionalization.
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Affiliation(s)
| | - Leonardo Amendolare
- Institute of Organic Chemistry, University of Vienna
- Dipartimento di chimica, Universitá degli Studi Aldo Moro di Bari
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8
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Gowda AS, Lee TS, Rosko MC, Petersen JL, Castellano FN, Milsmann C. Long-Lived Photoluminescence of Molecular Group 14 Compounds through Thermally Activated Delayed Fluorescence. Inorg Chem 2022; 61:7338-7348. [PMID: 35507416 DOI: 10.1021/acs.inorgchem.2c00182] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Photoluminescent molecules exploiting the sizable spin-orbit coupling constants of main group metals and metalloids to access long-lived triplet excited states are relatively rare compared to phosphorescent transition metal complexes. Here we report the synthesis of three air- and moisture-stable group 14 compounds E(MePDPPh)2, where E = Si, Ge, or Sn and [MePDPPh]2- is the doubly deprotonated form of 2,6-bis(5-methyl-3-phenyl-1H-pyrrol-2-yl)pyridine. In solution, all three molecules exhibit exceptionally long-lived triplet excited states with lifetimes in the millisecond range and show highly efficient photoluminescence (Φ ≤ 0.49) due to competing prompt fluorescence and thermally activated delayed fluorescence at and around room temperature. Temperature-dependent steady-state emission spectra and photoluminescent lifetime measurements provided conclusive evidence for the two distinct emission pathways. Picosecond transient absorption spectroscopy allowed further analysis of the intersystem crossing (ISC) between singlet and triplet manifolds (τISC = 0.25-3.1 ns) and confirmed the expected trend of increased ISC rates for the heavier elements in otherwise isostructural compounds.
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Affiliation(s)
- Anitha S Gowda
- C. Eugene Bennett Department of Chemistry, West Virginia University, Morgantown, West Virginia 26506, United States
| | - Tia S Lee
- Department of Chemistry, Princeton University, Princeton, New Jersey 08544, United States.,Department of Chemistry, North Carolina State University, Raleigh, North Carolina 27695-8204, United States
| | - Michael C Rosko
- Department of Chemistry, North Carolina State University, Raleigh, North Carolina 27695-8204, United States
| | - Jeffrey L Petersen
- C. Eugene Bennett Department of Chemistry, West Virginia University, Morgantown, West Virginia 26506, United States
| | - Felix N Castellano
- Department of Chemistry, North Carolina State University, Raleigh, North Carolina 27695-8204, United States
| | - Carsten Milsmann
- C. Eugene Bennett Department of Chemistry, West Virginia University, Morgantown, West Virginia 26506, United States
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9
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Te⋯N secondary-bonding interactions in tellurium crystals: Supramolecular aggregation patterns and a comparison with their lighter congeners. Coord Chem Rev 2022. [DOI: 10.1016/j.ccr.2021.214397] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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10
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Romito D, Fresta E, Cavinato LM, Kählig H, Amenitsch H, Caputo L, Chen Y, Samorì P, Charlier JC, Costa R, Bonifazi D. Supramolecular Chalcogen‐Bonded Semiconducting Nanoribbons at work in Lighting Devices. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202202137] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Deborah Romito
- University of Vienna Faculty of Chemistry: Universitat Wien Fakultat fur Chemie Organic Chemistry Währinger Straße 38 1090 Vienna AUSTRIA
| | - Elisa Fresta
- Technical University Munich: Technische Universitat Munchen Chair of Biogenic Functional Materials Schulgasse 22 94315 Straubing GERMANY
| | - Luca Maria Cavinato
- Technical University of Munich: Technische Universitat Munchen Chair of Biogenic Functional Materials Schulgasse 22 94315 Straubing GERMANY
| | - Hanspeter Kählig
- University of Vienna Faculty of Chemistry: Universitat Wien Fakultat fur Chemie Organic Chemistry Währinger Straße 38 1090 vienna AUSTRIA
| | - Heinz Amenitsch
- Graz University of Technology: Technische Universitat Graz Institute for Inorganic Chemistry Stremayergasse 9/V 8010 Graz AUSTRIA
| | - Laura Caputo
- UCLouvain Saint-Louis Bruxelles: Universite Saint-Louis - Bruxelles Institute of Condensed Matter and Nanosciences Chemin des étoiles 8 B-1348 Louvain-la-Neuve BELGIUM
| | - Yusheng Chen
- Universite de Strasbourg CNRS, ISIS 8 allée Gaspard Monge 67000 Strasbourg FRANCE
| | - Paolo Samorì
- Universite de Strasbourg CNRS, ISIS 8 allée Gaspard Monge 67000 Strasbourg FRANCE
| | - Jean-Christophe Charlier
- UCLouvain Saint-Louis Bruxelles: Universite Saint-Louis - Bruxelles Institute of Condensed Matter and Nanosciences Chemin des étoiles 8 B-1348 Louvain-la-Neuve BELGIUM
| | - Rubén Costa
- Technical University of Munich: Technische Universitat Munchen Chair of Biogenic Functional Materials Schulgasse 22 94315 Straubing GERMANY
| | - Davide Bonifazi
- University of Vienna Faculty of Chemistry: Universitat Wien Fakultat fur Chemie Institute of Organic Chemistry Währinger Strasse 38 1090 Vienna AUSTRIA
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11
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Shao W, Jiang H, Ansari R, Zimmerman PM, Kim J. Heavy atom oriented orbital angular momentum manipulation in metal-free organic phosphors. Chem Sci 2022; 13:789-797. [PMID: 35173944 PMCID: PMC8768842 DOI: 10.1039/d1sc05689a] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Accepted: 12/15/2021] [Indexed: 01/31/2023] Open
Abstract
Metal-free purely organic phosphors (POPs) are emerging materials for display technologies, solid-state lighting, and chemical sensors. However, due to limitations in contemporary design strategies, the intrinsic spin-orbit coupling (SOC) efficiency of POPs remains low and their emission lifetime is pinned in the millisecond regime. Here, we present a design concept for POPs where the two main factors that control SOC-the heavy atom effect and orbital angular momentum-are tightly coupled to maximize SOC. This strategy is bolstered by novel natural-transition-orbital-based computational methods to visualize and quantify angular momentum descriptors for molecular design. To demonstrate the effectiveness of this strategy, prototype POPs were created having efficient room-temperature phosphorescence with lifetimes pushed below the millisecond regime, which were enabled by boosted SOC efficiencies beyond 102 cm-1 and achieved record-high efficiencies in POPs. Electronic structure analysis shows how discrete tuning of heavy atom effects and orbital angular momentum is possible within the proposed design strategy, leading to a strong degree of control over the resulting POP properties.
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Affiliation(s)
- Wenhao Shao
- Department of Chemistry, Department of Chemical Engineering, Department of Materials Science and Engineering, Macromolecular Science and Engineering, University of Michigan Ann Arbor Michigan 48109 USA
| | - Hanjie Jiang
- Department of Chemistry, Department of Chemical Engineering, Department of Materials Science and Engineering, Macromolecular Science and Engineering, University of Michigan Ann Arbor Michigan 48109 USA
| | - Ramin Ansari
- Department of Chemistry, Department of Chemical Engineering, Department of Materials Science and Engineering, Macromolecular Science and Engineering, University of Michigan Ann Arbor Michigan 48109 USA
| | - Paul M Zimmerman
- Department of Chemistry, Department of Chemical Engineering, Department of Materials Science and Engineering, Macromolecular Science and Engineering, University of Michigan Ann Arbor Michigan 48109 USA
| | - Jinsang Kim
- Department of Chemistry, Department of Chemical Engineering, Department of Materials Science and Engineering, Macromolecular Science and Engineering, University of Michigan Ann Arbor Michigan 48109 USA
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Cyclization Reactions Involving 2-Aminoarenetellurols and Derivatives of α,β-Unsaturated Carboxylic Acids. HETEROATOM CHEMISTRY 2021. [DOI: 10.1155/2021/7140222] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The reductive cyclization of arenetellurols carrying α,β-unsaturated amide functionalities in the ortho position was investigated. Conceptually, such compounds can form 1,3-tellurazoles without the involvement of the unsaturation in the ring closure, they can form 1,4-tellurazinone derivatives, or they can undergo ring closure to 1,5-tellurazepinones. Amides derived from acrylic and methacrylic acid generated 1,5-tellurazepinones while 2-cinnamylamidobenzenetellurol cyclized to a 1,3-tellurazole derivative. In contrast, the reaction of acetylenedicarboxylic acid and its derivatives with 2-aminoarenetellurols generated 1,4-tellurazepinones, including a derivative of novel tricyclic naphtho [1, 4]tellurazinone. A comparison with analogous reactions of sulfur congeners indicates that their chemistry is a good predictor for the products obtained from 2-aminoarenetellurols. Selected compounds were characterized by X-ray crystallography. The present work offers access to previously unexplored organotellurium heterocycles.
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13
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Pakulski P, Pinkowicz D. 1,2,5-Thiadiazole 1,1-dioxides and Their Radical Anions: Structure, Properties, Reactivity, and Potential Use in the Construction of Functional Molecular Materials. Molecules 2021; 26:4873. [PMID: 34443461 PMCID: PMC8400987 DOI: 10.3390/molecules26164873] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Revised: 08/07/2021] [Accepted: 08/09/2021] [Indexed: 11/19/2022] Open
Abstract
This work provides a summary of the preparation, structure, reactivity, physicochemical properties, and main uses of 1,2,5-thiadiazole 1,1-dioxides in chemistry and material sciences. An overview of all currently known structures containing the 1,2,5-thiadiazole 1,1-dioxide motif (including the anions radical species) is provided according to the Cambridge Structural Database search. The analysis of the bond lengths typical for neutral and anion radical species is performed, providing a useful tool for unambiguous assessment of the valence state of the dioxothiadiazole-based compounds based solely on the structural data. Theoretical methodologies used in the literature to describe the dioxothiadiazoles are also shortly discussed, together with the typical 'fingerprint' of the dioxothiadiazole ring reported by means of various spectroscopic techniques (NMR, IR, UV-Vis). The second part describes the synthetic strategies leading to 1,2,5-thiadiazole 1,1-dioxides followed by the discussion of their electrochemistry and reactivity including mainly the chemical methods for the successful reduction of dioxothiadiazoles to their anion radical forms and the ability to form coordination compounds. Finally, the magnetic properties of dioxothiadiazole radical anions and the metal complexes involving dioxothiadiazoles as ligands are discussed, including simple alkali metal salts and d-block coordination compounds. The last section is a prospect of other uses of dioxothiadiazole-containing molecules reported in the literature followed by the perspectives and possible future research directions involving these compounds.
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Affiliation(s)
- Paweł Pakulski
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Kraków, Poland
| | - Dawid Pinkowicz
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Kraków, Poland
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14
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Mullin WJ, Sharber SA, Thomas SW. Optimizing the
self‐assembly
of conjugated polymers and small molecules through structurally programmed
non‐covalent
control. JOURNAL OF POLYMER SCIENCE 2021. [DOI: 10.1002/pol.20210290] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
| | - Seth A. Sharber
- Department of Chemistry Tufts University Medford Massachusetts USA
- Aramco Services Company, Aramco Research Center Boston Massachusetts USA
| | - Samuel W. Thomas
- Department of Chemistry Tufts University Medford Massachusetts USA
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15
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Biot N, Romito D, Bonifazi D. Substituent-Controlled Tailoring of Chalcogen-Bonded Supramolecular Nanoribbons in the Solid State. CRYSTAL GROWTH & DESIGN 2021; 21:536-543. [PMID: 33442332 PMCID: PMC7792508 DOI: 10.1021/acs.cgd.0c01318] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Revised: 11/18/2020] [Indexed: 06/12/2023]
Abstract
In this work, we design and synthesize supramolecular 2,5-substituted chalcogenazolo[5,4-β]pyridine (CGP) synthons arranging in supramolecular ribbons at the solid state. A careful choice of the combination of substituents at the 2- and 5-positions on the CGP scaffold is outlined to accomplish supramolecular materials by means of multiple hybrid interactions, comprising both chalcogen and hydrogen bonds. Depending on the steric and electronic properties of the substituents, different solid-state arrangements have been achieved. Among the different moieties on the 5-position, an oxazole unit has been incorporated on the Se- and Te-congeners by Pd-catalyzed cross-coupling reaction and a supramolecular ribbon-like organization was consistently obtained at the solid state.
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Affiliation(s)
- Nicolas Biot
- School
of Chemistry, Cardiff University, Park Place, CF10 3AT, Cardiff, United Kingdom
| | - Deborah Romito
- Institute
of Organic Chemistry, University of Vienna, 1090 Vienna, Austria
| | - Davide Bonifazi
- Institute
of Organic Chemistry, University of Vienna, 1090 Vienna, Austria
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16
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Zhou J, Stojanović L, Berezin AA, Battisti T, Gill A, Kariuki BM, Bonifazi D, Crespo-Otero R, Wasielewski MR, Wu YL. Organic room-temperature phosphorescence from halogen-bonded organic frameworks: hidden electronic effects in rigidified chromophores. Chem Sci 2020; 12:767-773. [PMID: 34163810 PMCID: PMC8178982 DOI: 10.1039/d0sc04646a] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
Development of purely organic materials displaying room-temperature phosphorescence (RTP) will expand the toolbox of inorganic phosphors for imaging, sensing or display applications. While molecular solids were found to suppress non-radiative energy dissipation and make the RTP process kinetically favourable, such an effect should be enhanced by the presence of multivalent directional non-covalent interactions. Here we report phosphorescence of a series of fast triplet-forming tetraethyl naphthalene-1,4,5,8-tetracarboxylates. Various numbers of bromo substituents were introduced to modulate intermolecular halogen-bonding interactions. Bright RTP with quantum yields up to 20% was observed when the molecule is surrounded by a Br⋯O halogen-bonded network. Spectroscopic and computational analyses revealed that judicious heavy-atom positioning suppresses non-radiative relaxation and enhances intersystem crossing at the same time. The latter effect was found to be facilitated by the orbital angular momentum change, in addition to the conventional heavy-atom effect. Our results suggest the potential of multivalent non-covalent interactions for excited-state conformation and electronic control. The number and position of halogen substituents in purely organic π–π* chromophores critically affect the efficiency of phosphorescence.![]()
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Affiliation(s)
- Jiawang Zhou
- Department of Chemistry, Institute for Sustainability and Energy at Northwestern, Northwestern University Evanston Illinois 60208-3113 USA
| | - Ljiljana Stojanović
- School of Biological and Chemical Sciences, Queen Mary University of London London E1 4NS UK
| | | | | | - Abigail Gill
- School of Chemistry, Cardiff University Cardiff CF10 3AT UK
| | | | - Davide Bonifazi
- School of Chemistry, Cardiff University Cardiff CF10 3AT UK .,Institute of Organic Chemistry, Faculty of Chemistry, University of Vienna Währinger Str. 38 Vienna 1090 Austria
| | - Rachel Crespo-Otero
- School of Biological and Chemical Sciences, Queen Mary University of London London E1 4NS UK
| | - Michael R Wasielewski
- Department of Chemistry, Institute for Sustainability and Energy at Northwestern, Northwestern University Evanston Illinois 60208-3113 USA
| | - Yi-Lin Wu
- School of Chemistry, Cardiff University Cardiff CF10 3AT UK
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17
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18
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Riebe S, Wölper C, Balszuweit J, Hayduk M, Gutierrez Suburu ME, Strassert CA, Doltsinis NL, Voskuhl J. Understanding the Role of Chalcogens in Ether‐Based Luminophores with Aggregation‐Induced Fluorescence and Phosphorescence. CHEMPHOTOCHEM 2020. [DOI: 10.1002/cptc.202000002] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Steffen Riebe
- Institute of Organic ChemistryUniversity of Duisburg-Essen Universitätsstrasse 7 45117 Essen Germany
| | - Christoph Wölper
- Institute of Inorganic ChemistryUniversity of Duisburg-Essen Universitätsstrasse 7 45117 Essen Germany)
| | - Jan Balszuweit
- Institute of Organic ChemistryUniversity of Duisburg-Essen Universitätsstrasse 7 45117 Essen Germany
| | - Matthias Hayduk
- Institute of Organic ChemistryUniversity of Duisburg-Essen Universitätsstrasse 7 45117 Essen Germany
| | - Matias Ezequiel Gutierrez Suburu
- Institut für Anorganische und Analytische Chemie CiMIC, CeNTech, SoN –Westfälische Wilhelms-Universität Münster Heisenbergstraße 11 48149 Münster Germany
| | - Cristian A. Strassert
- Institut für Anorganische und Analytische Chemie CiMIC, CeNTech, SoN –Westfälische Wilhelms-Universität Münster Heisenbergstraße 11 48149 Münster Germany
| | - Nikos L. Doltsinis
- Institut für Festkörpertheorie and Center for Multiscale Theory and ComputationWestfälische Wilhelms-Universität Münster Wilhelm-Klemm-Str. 10 48149 Münster Germany)
| | - Jens Voskuhl
- Institute of Organic ChemistryUniversity of Duisburg-Essen Universitätsstrasse 7 45117 Essen Germany
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19
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Biot N, Bonifazi D. Concurring Chalcogen‐ and Halogen‐Bonding Interactions in Supramolecular Polymers for Crystal Engineering Applications. Chemistry 2020; 26:2904-2913. [DOI: 10.1002/chem.201904762] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2019] [Indexed: 12/14/2022]
Affiliation(s)
- Nicolas Biot
- School of Chemistry Cardiff University Park Place CF10 3AT Cardiff UK
| | - Davide Bonifazi
- School of Chemistry Cardiff University Park Place CF10 3AT Cardiff UK
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20
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Fukushima K, Jones GO, Horn HW, Rice JE, Kato T, Hedrick JL. Formation of bis-benzimidazole and bis-benzoxazole through organocatalytic depolymerization of poly(ethylene terephthalate) and its mechanism. Polym Chem 2020. [DOI: 10.1039/d0py00436g] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
One-pot syntheses of bis-benzimidazole and bis-benzoxazole from poly(ethylene terephthalate) waste bottles were successful through two-step nucleophilic attacks promoted by TBD.
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Affiliation(s)
- Kazuki Fukushima
- Department of Chemistry and Biotechnology
- School of Engineering
- The University of Tokyo
- Bunkyo-ku
- Japan
| | | | - Hans W. Horn
- IBM Research – Almaden. 650 Harry Road
- San Jose
- USA
| | | | - Takashi Kato
- Department of Chemistry and Biotechnology
- School of Engineering
- The University of Tokyo
- Bunkyo-ku
- Japan
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21
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Romito D, Biot N, Babudri F, Bonifazi D. Non-covalent bridging of bithiophenes through chalcogen bonding grips. NEW J CHEM 2020. [DOI: 10.1039/c9nj06202e] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
In this work, chalcogen functionalized dithiophenes, equipped on both extremities with chalcogen-bonding recognition heterocycles, have been prepared following two synthetic pathways.
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Affiliation(s)
| | - Nicolas Biot
- School of Chemistry
- Cardiff University
- Cardiff CF10 3AT
- UK
| | - Francesco Babudri
- Dipartimento di Chimica
- Università degli Studi Aldo Moro di Bari
- 70126 Bari
- Italy
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22
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Jiang M, Guo J, Liu B, Tan Q, Xu B. Synthesis of Tellurium-Containing π-Extended Aromatics with Room-Temperature Phosphorescence. Org Lett 2019; 21:8328-8333. [PMID: 31560555 DOI: 10.1021/acs.orglett.9b03106] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
A synthesis of tellurium-embedded π-extended aromatics from tellurium powder and readily available cyclic diaryliodonium salts has been developed. The versatility of this method has been demonstrated by the synthesis of various functionalized dibenzotellurophenes (DBTe's), a ladder-type π-system, and a heterosumanene. These compounds demonstrated good air/moisture stability and high thermal stability. Remarkably, many DBTe's exhibited interesting tunable room-temperature phosphorescence (RTP) in the solid state.
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Affiliation(s)
- Mengjing Jiang
- Department of Chemistry, Innovative Drug Research Center , Shanghai University , 99 Shangda Road , Shanghai 200444 , China
| | - Jimin Guo
- Department of Chemistry, Innovative Drug Research Center , Shanghai University , 99 Shangda Road , Shanghai 200444 , China
| | - Bingxin Liu
- Department of Chemistry, Innovative Drug Research Center , Shanghai University , 99 Shangda Road , Shanghai 200444 , China
| | - Qitao Tan
- Department of Chemistry, Innovative Drug Research Center , Shanghai University , 99 Shangda Road , Shanghai 200444 , China
| | - Bin Xu
- Department of Chemistry, Innovative Drug Research Center , Shanghai University , 99 Shangda Road , Shanghai 200444 , China.,State Key Laboratory of Organometallic Chemistry , Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences , Shanghai 200032 , China
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23
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Affiliation(s)
- Sarah M. Parke
- Department of Chemistry; University of Alberta; 11227 Saskatchewan Dr. Edmonton, Alberta Canada T6G 2G2
| | - Eric Rivard
- Department of Chemistry; University of Alberta; 11227 Saskatchewan Dr. Edmonton, Alberta Canada T6G 2G2
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24
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Rani V, Singh HB, Butcher RJ. Synthesis and structure of an aryl-selenenium(II) cation, [C 34H 41N 4Se +] 2[Hg(SeCN) 4] 2-, based on a 5- tert-butyl-1,3-bis-(1-pentyl-1 H-benzimidazol-2-yl)benzene scaffold. Acta Crystallogr E Crystallogr Commun 2018; 74:786-790. [PMID: 29951230 PMCID: PMC6002820 DOI: 10.1107/s2056989018006394] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2018] [Accepted: 04/25/2018] [Indexed: 11/23/2022]
Abstract
In the title salt, bis-{[5-tert-butyl-1,3-bis-(1-pentyl-1H-benzimidazol-2-yl)benzene]selenium} tetra-kis-(seleno-cyanato)-mercury, (C34H41N4Se)2[Hg(SeCN)4], the aryl-selenenium cations, [C34H41N4Se]+, are linked through [Hg(SeCN)4]2- anions by C-H⋯N hydrogen bonds. In the cation, the geometry around the Se atom in the 5-tert-butyl-1,3-bis-(1-pentyl-1H-benzimidazol-2-yl)benzene scaffold is T-shaped, resulting from the coordination of Se by the C atom of the central aromatic ring and the N atoms of both of the benzimidazole moieties. The trans Se-N bond lengths are almost equal [2.087 (3) and 2.099 (3) Å] and the Se-C bond length is 1.886 (3) Å. The N-Se-N angle is 159.29 (11)°. The geometry around the HgII atom in the [Hg(SeCN)4]2- anion is distorted tetra-hedral, with Se-Hg-Se angles ranging from 88.78 (3) to 126.64 (2)°. In [Hg(SeCN)4]2-, the Hg-Se bonds are unsymmetrical [2.5972 (4) and 2.7242 (5) Å]. One of the pentyl substituents is disordered over two equivalent conformations, with occupancies of 0.852 (8) and 0.148 (8).
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Affiliation(s)
- Varsha Rani
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400 076, India
| | - Harkesh B. Singh
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400 076, India
| | - Ray J. Butcher
- Department of Chemistry, Howard University, 525 College Street NW, Washington, DC 20059, USA
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25
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Rani V, Singh HB, Butcher RJ. Synthesis and structure of an aryl-tellurenium(II) cation; [4- tert-butyl-2,6-bis-(1-pentyl-1 H-benz-imidazol-2-yl-κ N3)phenyl-κ C1]tellurium(II) (1,4-dioxane)tri-iodido-mercurate(II). Acta Crystallogr E Crystallogr Commun 2018; 74:390-393. [PMID: 29765730 PMCID: PMC5947810 DOI: 10.1107/s2056989018002645] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2018] [Accepted: 02/13/2018] [Indexed: 12/02/2022]
Abstract
In the title salt, (C34H41N4Te)[HgI3(C4H8O2)], the aryl-tellurenium [C34H41N4Te]+ cations and [HgI3(dioxane)]- anions are linked by a short inter-action between the Te atom and one of the I-atom donors of the anion, as well as through weak C-H⋯I inter-actions. The geometry around the Te atom is T-shaped with the coordination comprising a C atom of the central aromatic ring and two N atom donors of the benzimidazolyl moiety. The Te-N bond lengths are almost equal [2.232 (3) and 2.244 (3) Å], while the Te-C bond length is 2.071 (4) Å. The N-Te-N bond angle is 150.68 (11)°. The HgII atom of the anion is coordinated by iodide ions from three sides and the fourth coordination site is occupied by an O atom of the solvent mol-ecule (dioxane). Thus, it attains a trigonal-pyrimidal geometry, with O-Hg-I angles ranging of 90.76 (8) and 96.76 (7)° and I-Hg-I angles ranging from 112.41 (1) to 125.10 (1)°. The cations and anions are involved in numerous weak π-π stacking inter-actions involving both the central phenyl ring and two inversion-related benzimidazole moieties, which propagate in the a-axis direction. In addition, there are numerous C-H⋯I inter-actions between the cations and anions, which link them into a complex three-dimensional array.
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Affiliation(s)
- Varsha Rani
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Harkesh B. Singh
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Ray J. Butcher
- Department of Chemistry, Howard University, 525 College Street NW, Washington, DC 20059, USA
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26
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Rani V, Boda M, Raju S, Naresh Patwari G, Singh HB, Butcher RJ. Synthesis and structure of arylselenium(ii) and aryltellurium(ii) cations based on rigid 5-tert-butyl-1,3-bis-(N-pentylbenzimidazol-2′-yl)benzenes. Dalton Trans 2018; 47:9114-9127. [DOI: 10.1039/c8dt01148f] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
The transmetalation reactions of mercury precursor, [Pentyl(N^C^N)HgCl] (19) with selenium and tellurium halides led to isolation of air stable NCN pincer based arylselenium(ii) and aryltellurium(ii) cations due to facile ionization of Se/Te halogen bond.
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Affiliation(s)
- Varsha Rani
- Department of Chemistry
- Indian Institute of Technology Bombay
- Mumbai 400076
- India
| | - Manjusha Boda
- Department of Chemistry
- Indian Institute of Technology Bombay
- Mumbai 400076
- India
| | - Saravanan Raju
- Department of Chemistry
- Indian Institute of Technology Bombay
- Mumbai 400076
- India
| | - G. Naresh Patwari
- Department of Chemistry
- Indian Institute of Technology Bombay
- Mumbai 400076
- India
| | - Harkesh B. Singh
- Department of Chemistry
- Indian Institute of Technology Bombay
- Mumbai 400076
- India
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27
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Biot N, Bonifazi D. Programming Recognition Arrays through Double Chalcogen-Bonding Interactions. Chemistry 2017; 24:5439-5443. [PMID: 29194816 DOI: 10.1002/chem.201705428] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2017] [Indexed: 12/12/2022]
Abstract
In this work, we have programmed and synthesized a recognition motif constructed around a chalcogenazolo-pyridine scaffold (CGP) that, through the formation of frontal double chalcogen-bonding interactions, associates into dimeric EX-type complexes. The reliability of the double chalcogen-bonding interaction has been shown at the solid-state by X-ray analysis, depicting the strongest recognition persistence for a Te-congener. The high recognition fidelity, chemical and thermal stability and easy derivatization at the 2-position makes CGP a convenient motif for constructing supramolecular architectures through programmed chalcogen-bonding interactions.
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Affiliation(s)
- Nicolas Biot
- School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff, CF10 3AT, United Kingdom
| | - Davide Bonifazi
- School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff, CF10 3AT, United Kingdom
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28
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Miletić T, Fermi A, Papadakis I, Orfanos I, Karampitsos N, Avramopoulos A, Demitri N, De Leo F, Pope SJA, Papadopoulos MG, Couris S, Bonifazi D. A Twisted Bay-Substituted Quaterrylene Phosphorescing in the NIR Spectral Region. Helv Chim Acta 2017. [DOI: 10.1002/hlca.201700192] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Tanja Miletić
- School of Chemistry; Cardiff University; Park Place CF10 3AT Cardiff UK
- Department of Chemical and Pharmaceutical Sciences; INSTM UdR Trieste; University of Trieste; Piazzale Europa 1 34127 Trieste Italy
| | - Andrea Fermi
- School of Chemistry; Cardiff University; Park Place CF10 3AT Cardiff UK
| | - Ioannis Papadakis
- Department of Physics; University of Patras; 26504 Patras Greece
- Institute of Chemical Engineering Sciences (ICE-HT); Foundation for Research and Technology-Hellas (FORTH); P.O. Box 1414 Patras 26504 Greece
| | - Ioannis Orfanos
- Department of Physics; University of Patras; 26504 Patras Greece
- Institute of Chemical Engineering Sciences (ICE-HT); Foundation for Research and Technology-Hellas (FORTH); P.O. Box 1414 Patras 26504 Greece
| | - Nikolaos Karampitsos
- Department of Physics; University of Patras; 26504 Patras Greece
- Institute of Chemical Engineering Sciences (ICE-HT); Foundation for Research and Technology-Hellas (FORTH); P.O. Box 1414 Patras 26504 Greece
| | - Aggelos Avramopoulos
- Institute of Biology, Medicinal Chemistry and Biotechnology; National Hellenic Research Foundation; 48 Vas. Constantinou Avenue Athens 11635 Greece
- Department of Computer Engineering; Technological Education Institute (TEI) of Sterea Ellada; Lamia 35100 Greece
| | - Nicola Demitri
- Elettra - Sincrotrone Trieste; S.S. 14 Km 163.5 in Area Science Park 34149 Basovizza - Trieste Italy
| | - Federica De Leo
- San Raffaele Hospital; Scientific Institute-IRCCS; Via Olgettina 60 20132 Milan Italy
| | - Simon J. A. Pope
- School of Chemistry; Cardiff University; Park Place CF10 3AT Cardiff UK
| | - Manthos G. Papadopoulos
- Institute of Biology, Medicinal Chemistry and Biotechnology; National Hellenic Research Foundation; 48 Vas. Constantinou Avenue Athens 11635 Greece
| | - Stelios Couris
- Department of Physics; University of Patras; 26504 Patras Greece
- Institute of Chemical Engineering Sciences (ICE-HT); Foundation for Research and Technology-Hellas (FORTH); P.O. Box 1414 Patras 26504 Greece
| | - Davide Bonifazi
- School of Chemistry; Cardiff University; Park Place CF10 3AT Cardiff UK
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29
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Balaguez RA, Betin ES, Barcellos T, Lenardão EJ, Alves D, Schumacher RF. Synthesis of 2-acyl-benzo[1,3-d]selenazoles via domino oxidative cyclization of methyl ketones with bis(2-aminophenyl) diselenide. NEW J CHEM 2017. [DOI: 10.1039/c6nj03103j] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The synthesis of unprecedented 2-acyl-benzo[1,3-d]selenazoles is presented using bis(2-aminophenyl) diselenide and aryl methyl ketones under conventional heating and microwave irradiation.
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Affiliation(s)
- Renata A. Balaguez
- Laboratório de Síntese Orgânica Limpa – LASOL
- CCQFA
- Universidade Federal de Pelotas – UFPel
- Pelotas
- Brazil
| | - Eduardo S. Betin
- Laboratório de Síntese Orgânica Limpa – LASOL
- CCQFA
- Universidade Federal de Pelotas – UFPel
- Pelotas
- Brazil
| | - Thiago Barcellos
- Laboratory of Biotechnology of Natural and Synthetic Products
- Universidade de Caxias do Sul
- Caxias do Sul
- Brazil
| | - Eder J. Lenardão
- Laboratório de Síntese Orgânica Limpa – LASOL
- CCQFA
- Universidade Federal de Pelotas – UFPel
- Pelotas
- Brazil
| | - Diego Alves
- Laboratório de Síntese Orgânica Limpa – LASOL
- CCQFA
- Universidade Federal de Pelotas – UFPel
- Pelotas
- Brazil
| | - Ricardo F. Schumacher
- Laboratório de Síntese Orgânica Limpa – LASOL
- CCQFA
- Universidade Federal de Pelotas – UFPel
- Pelotas
- Brazil
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30
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Gupta A, Kumar S, Singh HB. Structural and Reactivity Aspects of Organoselenium and Tellurium Cations. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES INDIA SECTION A-PHYSICAL SCIENCES 2016. [DOI: 10.1007/s40010-016-0301-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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31
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Ligi K, Enkvist E, Uri A. Deoxygenation Increases Photoluminescence Lifetime of Protein-Responsive Organic Probes with Triplet–Singlet Resonant Energy Transfer. J Phys Chem B 2016; 120:4945-54. [DOI: 10.1021/acs.jpcb.6b03342] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Kadri Ligi
- Institute of Chemistry, University of Tartu, 14a Ravila
Street, 50411 Tartu, Estonia
| | - Erki Enkvist
- Institute of Chemistry, University of Tartu, 14a Ravila
Street, 50411 Tartu, Estonia
| | - Asko Uri
- Institute of Chemistry, University of Tartu, 14a Ravila
Street, 50411 Tartu, Estonia
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32
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Supramolecular Wiring of Benzo-1,3-chalcogenazoles through Programmed Chalcogen Bonding Interactions. Chemistry 2016; 22:5665-75. [DOI: 10.1002/chem.201504328] [Citation(s) in RCA: 86] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2015] [Indexed: 11/07/2022]
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