1
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Andoh K, Murai M, Bouit PA, Hissler M, Yamaguchi S. Dithieno[3,2-b; 2',3'-f]phosphepinium-Based Near-Infrared Fluorophores: p x-π* Conjugation Inherent to Seven-Membered Phosphacycles. Angew Chem Int Ed Engl 2024; 63:e202410204. [PMID: 38935519 DOI: 10.1002/anie.202410204] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2024] [Revised: 06/27/2024] [Accepted: 06/27/2024] [Indexed: 06/29/2024]
Abstract
Positively charged phosphorus-containing heterocycles are characteristic core skeletons for functional molecules. While various phosphonium-containing five- or six-membered-ring compounds have been reported, the seven-membered-ring phosphepinium have not been fully studied yet. In this study, dithieno[3,2-b; 2',3'-f]phosphepinium ions containing electron-donating aminophenyl groups were synthesized. An X-ray crystallographic analysis of the resulting donor-acceptor-donor dyes revealed a bent conformation of the central seven-membered ring. These compounds exhibit fluorescence in the near-infrared region with a bathochromic shift of ca. 70 nm compared to a phosphepine oxide congener and a large Stokes shift. High fluorescence quantum yields were obtained even in polar solvents due to the suppression of the nonradiative decay process. A theoretical study revealed that the phosphepinium skeleton is highly electron-accepting owing to the orbital interaction between a px orbital of the phosphonium moiety and a π* orbital of the 1,3,5-hexatriene moiety. Due to the lower-lying px orbital in the phosphonium moiety compared to that of the phosphine oxide and the bent conformation of the seven-membered ring, the phosphepinium ring permits effective px-π* conjugation. A large structural relaxation with a contribution of a quinoidal resonance structure is suggested in the excited state, which should be responsible for the bright emission with a large Stokes shift.
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Affiliation(s)
- Keita Andoh
- Department of Chemistry, Graduate School of Science, and Integrated Research Consortium on Chemical Sciences (IRCCS), Nagoya University, Furo, Chikusa, Nagoya, 464-8602, Japan
| | - Masahito Murai
- Department of Chemistry, Graduate School of Science, and Integrated Research Consortium on Chemical Sciences (IRCCS), Nagoya University, Furo, Chikusa, Nagoya, 464-8602, Japan
| | | | - Muriel Hissler
- Université Rennes, CNRS, ISCR-UMR 6226, F-35000, Rennes, France
| | - Shigehiro Yamaguchi
- Department of Chemistry, Graduate School of Science, and Integrated Research Consortium on Chemical Sciences (IRCCS), Nagoya University, Furo, Chikusa, Nagoya, 464-8602, Japan
- Institute of Transformative Bio-Molecules (WPI-ITbM), Nagoya University, Furo, Chikusa, Nagoya, 464-8601, Japan
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2
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Calder EDE, Male L, Jupp AR. Accessing five- and seven-membered phosphorus-based heterocycles via cycloaddition reactions of azophosphines. Dalton Trans 2024; 53:15032-15039. [PMID: 39143836 DOI: 10.1039/d4dt02248c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/16/2024]
Abstract
Heterocycles containing both phosphorus and nitrogen have seen increasing use in recent years in luminescent materials, coordination chemistry and as building blocks for inorganic polymers, yet their chemistry is currently dominated by five- and six-membered derivatives. Seven-membered P/N heterocycles are comparatively scarce and lack general, high yielding syntheses. Here, we explore the synthesis and characterisation of 1,2,5-diazaphosphepines from azophosphines. The mechanism has been probed in detail with both computational and experimental studies supporting a stepwise mechanism to form a five-membered ring, and subsequent ring expansion to the diazaphosphepine. Regioselective synthesis of five- and seven-membered rings is possible using asymmetric alkynes. The Lewis acidic borane B(C6F5)3 could either catalyse the formation of the seven-membered ring (iPr derivative) or trap out a key intermediate via a frustrated Lewis pair (FLP) mechanism (tBu derivative).
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Affiliation(s)
- Ethan D E Calder
- School of Chemistry, University of Birmingham, Edgbaston, Birmingham, B15 2TT, UK.
| | - Louise Male
- School of Chemistry, University of Birmingham, Edgbaston, Birmingham, B15 2TT, UK.
| | - Andrew R Jupp
- School of Chemistry, University of Birmingham, Edgbaston, Birmingham, B15 2TT, UK.
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3
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Mondal S, Ghosh S, Hajra A. Visible-light-induced redox-neutral difunctionalization of alkenes and alkynes. Chem Commun (Camb) 2024; 60:9659-9691. [PMID: 39129429 DOI: 10.1039/d4cc03552f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/13/2024]
Abstract
The twelve principles of green chemistry illuminate the pathway in the direction of sustainable and eco-friendly synthesis, marking a fundamental shift in synthetic organic chemistry paradigms. In this realm, harnessing the power of visible light for the difunctionalization of various skeletons without employing any external oxidant or reductant, specifically termed as redox-neutral difunctionalization, has attracted tremendous interest from synthetic organic chemists due to its low cost, easy availability and environmentally friendly nature in contrast to traditional metal-catalyzed difunctionalizations. This review presents an overview of recent updates on visible-light-induced redox-neutral difunctionalization reactions with literature coverage up to May 2024.
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Affiliation(s)
- Susmita Mondal
- Central Ayurvedic Research Institute, 4-CN Block, Bidhannagar, Kolkata, 700091, West Bengal, India
| | - Sumit Ghosh
- Department of Chemistry, Visva-Bharati (A Central University), Santiniketan, 731235, West Bengal, India.
| | - Alakananda Hajra
- Department of Chemistry, Visva-Bharati (A Central University), Santiniketan, 731235, West Bengal, India.
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4
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Zhao P, Li T, Wei D, Wu D, Wang L, Duan Z. Synthesis, Photophysical and Electrochemical Properties of Spiro-Phosphonium Compounds. J Org Chem 2024; 89:11109-11118. [PMID: 39052854 DOI: 10.1021/acs.joc.3c02651] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/27/2024]
Abstract
A series of spiro-phosphonium compounds have been synthesized by copper-mediated coupling reaction of phosphacyclic compounds with alkynes. Their photophysical properties are tuned by varying substituents and exhibit different luminescent colors from blue to green, and finally, yellow. The fluorescence quantum efficiency of diethyl spiro-xanthenebenzophosphole 3aa in solid and liquid states reached 31% and 76%, respectively. Diphenyl spiro-xanthenebenzophosphole 3ad displayed relatively low cytotoxicity toward lung cancer cells A549 and was able to effectively penetrate the cell membrane and maintain strong staining. Moreover, density functional theory (DFT) and time-dependent DFT calculations have been performed to explore the origin of their photophysical properties.
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Affiliation(s)
- Peng Zhao
- College of Chemistry, International Phosphorus Laboratory, Zhengzhou University, Zhengzhou 450001, China
| | - Tong Li
- College of Chemistry, International Phosphorus Laboratory, Zhengzhou University, Zhengzhou 450001, China
- School of Public Health, Zhengzhou University, Zhengzhou 450001, China
| | - Donghui Wei
- College of Chemistry, International Phosphorus Laboratory, Zhengzhou University, Zhengzhou 450001, China
| | - Di Wu
- School of Public Health, Zhengzhou University, Zhengzhou 450001, China
| | - Lili Wang
- College of Chemistry, International Phosphorus Laboratory, Zhengzhou University, Zhengzhou 450001, China
| | - Zheng Duan
- College of Chemistry, International Phosphorus Laboratory, Zhengzhou University, Zhengzhou 450001, China
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5
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Garo J, Nicolini T, Sotiropoulos JM, Raimundo JM. Tuning the Electronic Properties of Bridged Dithienyl-, Difuryl-, Dipyrrolyl-Vinylene as Precursors of Small-Bandgap Conjugated Polymer. Chemistry 2024:e202402461. [PMID: 39136579 DOI: 10.1002/chem.202402461] [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: 06/27/2024] [Indexed: 09/25/2024]
Abstract
Optoelectronic properties of linear π-conjugated polymers/oligomers are of great importance for the fabrication of organic photonic and electronic devices. To this end, the π-conjugated polymers/oligomers need to meet both optoelectronic and key structural properties in order to fulfill their implementation as active components. In particular, they need to possess low bandgap and high thermal, conformational, and photochemical stabilities. So far, several strategies have been developed to attain such requirements including the covalent and non-covalent rigidification concepts of the π-conjugated systems. On the basis of these findings, we describe herein the theoretical studies of novel series of covalently bridged derivatives demonstrating the benefits of the strategy. Comparison of these derivatives with compounds previously described in the literature highlights enhanced optoelectronic properties and behaviors that would be beneficial for the construction and development of new linear π-conjugated polymers.
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Affiliation(s)
- Jordan Garo
- Universite de Pau et des Pays de l'Adour, E2S UPPA, CNRS, IPREM, 5254, Pau, France
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6
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Bayardon J, Qian C, Malacea-Kabbara R, Rousselin Y, Jugé S. Enantioselective Synthesis of P-Chirogenic 1,2,3-Triazolobenzophospholes. J Org Chem 2024; 89:11031-11042. [PMID: 39016213 DOI: 10.1021/acs.joc.4c01009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/18/2024]
Abstract
An enantioselective synthesis of a new class of benzophosphole-based heterocycles bearing a fused triazole ring with enantioselectivities of ≤99% is reported. The key steps of the synthesis are based on an innovative stereospecific phosphinyl N → O migration of aminophosphine-boranes into phosphinites, followed by an intramolecular cyclization. Five X-ray structures of P-chirogenic triazolobenzophospholes and a gold(I) complex were established, for assigning absolute configurations, the stereochemistry of the reactions, and the placement of the triazole substituent at the syn position of the P center.
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Affiliation(s)
- Jérôme Bayardon
- Institut de Chimie Moléculaire de l'Université de Bourgogne (ICMUB), Université de Bourgogne (UMR-CNRS 6302), 9, av. A. Savary, 21078 Dijon, France
| | - Chen Qian
- Institut de Chimie Moléculaire de l'Université de Bourgogne (ICMUB), Université de Bourgogne (UMR-CNRS 6302), 9, av. A. Savary, 21078 Dijon, France
| | - Raluca Malacea-Kabbara
- Institut de Chimie Moléculaire de l'Université de Bourgogne (ICMUB), Université de Bourgogne (UMR-CNRS 6302), 9, av. A. Savary, 21078 Dijon, France
| | - Yoann Rousselin
- Institut de Chimie Moléculaire de l'Université de Bourgogne (ICMUB), Université de Bourgogne (UMR-CNRS 6302), 9, av. A. Savary, 21078 Dijon, France
| | - Sylvain Jugé
- Institut de Chimie Moléculaire de l'Université de Bourgogne (ICMUB), Université de Bourgogne (UMR-CNRS 6302), 9, av. A. Savary, 21078 Dijon, France
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7
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Nascimento MA, LaPierre EA, Patrick BO, Watson JET, Watanabe L, Rawson J, Hering-Junghans C, Manners I. 1,3-Dipolar cyclisation reactions of nitriles with sterically encumbered cyclic triphosphanes: synthesis and electronic structure of phosphorus-rich heterocycles with tunable colour. Chem Sci 2024; 15:12006-12016. [PMID: 39092099 PMCID: PMC11290424 DOI: 10.1039/d4sc02497d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2024] [Accepted: 06/10/2024] [Indexed: 08/04/2024] Open
Abstract
We describe the synthesis, solid state and electronic structures of a series of tunable five-membered cationic and charge-neutral inorganic heterocycles featuring a P3CN core. 1-Aza-2,3,4-triphospholenium cations [(PR)3N(H)CR']+, [1R]+ (R' = Me, Ph, 4-MeOC6H4, 4-CF3C6H4) were formed as triflate salts by the formal [3 + 2]-cyclisation reactions of strained cyclic triphosphanes (PR)3 (R = t Bu, 2,4,6-Me3C6H2 (Mes), 2,6- i Pr2C6H3 (Dipp), 2,4,6- i Pr3C6H2 (Tipp)) with nitriles R'CN in the presence of triflic acid. The corresponding neutral free bases (PR)3NCR' (2R) were readily obtained by subsequent deprotonation with NEt3. The P3CN cores in 2R show an envelope conformation typical for cyclopentenes and present as yellow to orange compounds in the solid state as well as in solution depending on both substituents R and R' in (PR)3NCR'. The P3CN cores in [1R]+ show a significant deviation from planarity with increasing steric bulk of the R groups at phosphorus, which results in a decrease in the HOMO-LUMO gap and distinct low-energy UV-Visible absorption bands. This allows access to colours spanning red, blue, indigo, and magenta. TD-DFT calculations provide valuable insight into this phenomenon and indicate an intramolecular charge-transfer from the HOMO located on the P3 framework to the N[double bond, length as m-dash]C-R'-based LUMO in the cationic species. The cations [1R]+ represent rare examples of phosphorus-rich heterocycles with tunable colour, which can be incorporated into polymers by post-polymerization modification to afford coloured polymers, which demonstrate utility as both proton and ammonia sensors.
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Affiliation(s)
- Mitchell A Nascimento
- Department of Chemistry, University of Victoria 3800 Finnerty Rd Victoria British Columbia V8P 5C2 Canada
| | - Etienne A LaPierre
- Department of Chemistry, University of Victoria 3800 Finnerty Rd Victoria British Columbia V8P 5C2 Canada
| | - Brian O Patrick
- Department of Chemistry, University of British Columbia 2036 Main Mall Vancouver British Columbia V6T 1Z1 Canada
| | - Jade E T Watson
- Department of Chemistry, University of Victoria 3800 Finnerty Rd Victoria British Columbia V8P 5C2 Canada
| | - Lara Watanabe
- Department of Chemistry and Biochemistry, University of Windsor 401 Sunset Avenue Windsor Ontario N9B 3P4 Canada
| | - Jeremy Rawson
- Department of Chemistry and Biochemistry, University of Windsor 401 Sunset Avenue Windsor Ontario N9B 3P4 Canada
| | - Christian Hering-Junghans
- Leibniz Institut für Katalyse e.V. (LIKAT) A.-Einstein-Str.3a 18059 Rostock Germany
- Institut für Chemie, Otto-von-Guericke-Universität Magdeburg, Universitätsplatz 2 39106 Magdeburg Germany
| | - Ian Manners
- Department of Chemistry, University of Victoria 3800 Finnerty Rd Victoria British Columbia V8P 5C2 Canada
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8
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Banjare SK, Lezius L, Horst ES, Leifert D, Daniliuc CG, Alasmary FA, Studer A. Thermal and Photoinduced Radical Cascade Annulation using Aryl Isonitriles: An Approach to Quinoline-Derived Benzophosphole Oxides. Angew Chem Int Ed Engl 2024; 63:e202404275. [PMID: 38687058 DOI: 10.1002/anie.202404275] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2024] [Revised: 04/15/2024] [Accepted: 04/16/2024] [Indexed: 05/02/2024]
Abstract
Herein, we present a radical cascade addition cyclization sequence to access quinoline-based benzophosphole oxides from ortho-alkynylated aromatic phosphine oxides using various aryl isonitriles as radical acceptors and inexpensive tert-butyl-hydroperoxide (TBHP) as a terminal oxidant in the presence of a catalytic amount of silver acetate. Alternatively, the same cascade can be realized through a sustainable photochemical approach utilizing 1,2,3,5-tetrakis(carbazol-9-yl)-4,6-dicyanobenzene (4CzIPN) as an organic photocatalyst at room temperature. The introduced modular approach shows broad functional group tolerance and offers straightforward access to complex P,N-containing polyheterocyclic arenes. These novel π-extended benzophosphole oxides exhibit interesting photophysical and electrochemical properties such as absorption in the visible region, emission and reversible reduction at low potentials, which makes them promising for potential materials science applications. The photophysical properties can further be tuned by the addition of external Lewis and Brønsted acids.
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Affiliation(s)
- Shyam Kumar Banjare
- Organisch-Chemisches Institut, Chemistry Department, University of Münster, 48149, Münster, Germany
| | - Lena Lezius
- Organisch-Chemisches Institut, Chemistry Department, University of Münster, 48149, Münster, Germany
| | - Elena S Horst
- Organisch-Chemisches Institut, Chemistry Department, University of Münster, 48149, Münster, Germany
| | - Dirk Leifert
- Organisch-Chemisches Institut, Chemistry Department, University of Münster, 48149, Münster, Germany
| | - Constantin G Daniliuc
- Organisch-Chemisches Institut, Chemistry Department, University of Münster, 48149, Münster, Germany
| | - Fatmah A Alasmary
- Chemistry Department, College of Science, King Saud University, Riyadh, 11451, Saudi Arabia
| | - Armido Studer
- Organisch-Chemisches Institut, Chemistry Department, University of Münster, 48149, Münster, Germany
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9
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Tokura Y, Xu S, Kamiyoshi I, Hirano K. Organophotoredox-Catalyzed C-H Functionalizations of Benzophospholes. Org Lett 2024; 26:5269-5273. [PMID: 38888998 DOI: 10.1021/acs.orglett.4c01535] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/20/2024]
Abstract
An organophotoredox-catalyzed oxidative C-H functionalization of benzophospholes has been developed. The C-H alkoxycarbonylation with methyl carbazate occurs in the presence of Rose bengal, whereas Eosin Y enables the dehydrogenative coupling with secondary phosphine oxides and ethers, delivering the C-H phosphinylated and alkylated products. The scope of coupling partners is complementary to that of conventional metal-promoted C-H activation, thus successfully expanding the chemical space of substituted phospholes accessed by C-H functionalization protocols.
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Affiliation(s)
- Yu Tokura
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - Shibo Xu
- Innovative Catalysis Science Division, Institute for Open and Transdisciplinary Research Initiatives (ICS-OTRI), Osaka University, Suita, Osaka 565-0871, Japan
| | - Ikki Kamiyoshi
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - Koji Hirano
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
- Innovative Catalysis Science Division, Institute for Open and Transdisciplinary Research Initiatives (ICS-OTRI), Osaka University, Suita, Osaka 565-0871, Japan
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10
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Kumaranchira Ramankutty K. Circular dichroism and circularly polarized luminescence of ligand-protected molecular metal clusters: insights into structure-chiroptical property relationships. NANOSCALE 2024; 16:11914-11927. [PMID: 38845602 DOI: 10.1039/d4nr01232a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/28/2024]
Abstract
Molecular noble metal clusters are an emerging class of circularly polarized luminescent (CPL) nanomaterials. Many of the ligand-protected metal clusters exhibit discrete electronic absorption bands, which are assigned to their structural components such as metal core, ligands and metal-ligand interfaces. This implies the suitability of the chiroptical spectroscopic approach to unravel the structure-chiroptical property relationships in molecular metal clusters. Due to the tremendous developments in computational methods for investigating chiroptical properties, along with circular dichroism (CD) and CPL spectroscopy, understanding of the structure-chiroptical properties of these clusters is rapidly progressing. This review discusses various strategies such as the use of chiral ligands, metal atom substitution, ligand exchange, co-crystallization with chiral ligands, etc., for inducing and enhancing the CPL of such metal clusters. This review demonstrates the potential of combined CD-CPL spectroscopic investigations and theoretical calculations to unravel the origins of photoluminescence and CPL activity of chiral metal clusters.
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Affiliation(s)
- Krishnadas Kumaranchira Ramankutty
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram, Maruthamala P. O., Vithura, Thiruvananthapuram, 69551, India.
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11
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Zhang S, Liu X, Chen X, Tang J, Wang J. A novel fluorescent probe with a phosphofluorene molecular structure for selective detection of hydrogen sulfide in living cells. RSC Adv 2024; 14:20966-20973. [PMID: 38957581 PMCID: PMC11218039 DOI: 10.1039/d4ra02979h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2024] [Accepted: 06/24/2024] [Indexed: 07/04/2024] Open
Abstract
Hydrogen sulfide (H2S) gas plays a significant role in biological regulation. With advancements in technology, H2S has been discovered across diverse fields, necessitating a comprehensive understanding of its physiological functions through monitoring changes in H2S within complex environments and physiological processes. In this study, we designed a phosphofluorene-based conjugate probe PPF-CDNB with an asymmetric π-conjugated phosphine structure and utilized dinitrophenyl ether as the recognition site for H2S. PPF-CDNB exhibited exceptional resistance to interference and demonstrated stability over a broad pH range (3.0-10.0), making it suitable for various environmental conditions. Intracellular experiments revealed that PPF-CDNB effectively monitored both endogenous and exogenous levels of H2S.
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Affiliation(s)
- Shuntao Zhang
- College of Chemical Engineering, Sichuan University of Science & Engineering Zigong 643000 China
| | - Xingyong Liu
- College of Chemical Engineering, Sichuan University of Science & Engineering Zigong 643000 China
| | - Xiangjun Chen
- College of Chemical Engineering, Sichuan University of Science & Engineering Zigong 643000 China
| | - Jiefeng Tang
- College of Chemical Engineering, Sichuan University of Science & Engineering Zigong 643000 China
| | - Juan Wang
- College of Chemical Engineering, Sichuan University of Science & Engineering Zigong 643000 China
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12
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Zhao P, Liang Q, Hu C, Jiang YF, Chang XY, Wang L, Mei Y, Duan Z. Probing the Electron Accepting Ability of Phosphaphenalenes. Chemistry 2024:e202401853. [PMID: 38825564 DOI: 10.1002/chem.202401853] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2024] [Revised: 05/29/2024] [Accepted: 05/31/2024] [Indexed: 06/04/2024]
Abstract
Phosphaphenalenes, extended π conjugates with the incorporation of phosphorus, are attractive avenues towards molecular materials for the applications in organic electronics, but their electron accepting ability have not been investigated. Herein we present systematic studies on the reductive behavior of a representative phosphaphenalene and its oxide by chemical and electrochemical methods. The chemical reduction of the phosphaphenalene by alkali metals reveals the facile P-C bond cleavage to form phosphaphenalenide anion, which functions as a transfer block for structure modification on the phosphorus atom. In contrast, the pentavalent P-oxide reacts with one or two equivalents of elemental sodium to form stable radical anion and dianion salts, respectively.
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Affiliation(s)
- Peng Zhao
- College of Chemistry, International Phosphorus Laboratory, Zhengzhou University, Zhengzhou, 450001
| | - Qiuming Liang
- Department of Chemistry, Dongguan Key Laboratory for Data Science and Intelligent Medicine, Great Bay Institute for Advanced Study, Great Bay University, Dongguan, 523000
| | - Chaopeng Hu
- Department of Chemistry, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Ya-Fei Jiang
- Department of Chemistry, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Xiao-Yong Chang
- Department of Chemistry, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Lili Wang
- College of Chemistry, International Phosphorus Laboratory, Zhengzhou University, Zhengzhou, 450001
| | - Yanbo Mei
- Department of Chemistry, Dongguan Key Laboratory for Data Science and Intelligent Medicine, Great Bay Institute for Advanced Study, Great Bay University, Dongguan, 523000
| | - Zheng Duan
- College of Chemistry, International Phosphorus Laboratory, Zhengzhou University, Zhengzhou, 450001
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13
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Ma J, Wang L, Qiao A, Li Z, Zhao F, Wu J. Synthesis of alkenylphosphine oxides via Tf 2O promoted addition-elimination of ketones and secondary phosphine oxides. Org Biomol Chem 2024; 22:3592-3596. [PMID: 38624160 DOI: 10.1039/d4ob00318g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/17/2024]
Abstract
Herein, we describe an efficient method for the synthesis of alkenylphosphine oxides via a Tf2O promoted addition-elimination process. Various diarylphosphine oxides and alkylarylphosphine oxides react with ketones smoothly and produce alkenylphosphine oxides in moderate to excellent yields with abundant functional group compatibility. In addition, several transformations and applications of the product also demonstrate the potential value of the methodology.
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Affiliation(s)
- Jiangkai Ma
- Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou 450001, P. R. China.
| | - Lianjie Wang
- High & New Technology Research Center, Henan Academy of Sciences, Zhengzhou 450002, P. R. China
| | - Anjiang Qiao
- Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou 450001, P. R. China.
| | - Zhongxian Li
- High & New Technology Research Center, Henan Academy of Sciences, Zhengzhou 450002, P. R. China
| | - Fengqian Zhao
- Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou 450001, P. R. China.
| | - Junliang Wu
- Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou 450001, P. R. China.
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14
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Goual N, Maisonneuve S, Retailleau P, Xie J, Marinetti A, Voituriez A. Synthesis and Characterization of a [1,2,6]Diazaphosphonine Oxide: An Example of a Photoswitchable Phosphorus-Containing Cyclic Azobenzene. J Org Chem 2024; 89:5098-5103. [PMID: 38452258 DOI: 10.1021/acs.joc.3c02450] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/09/2024]
Abstract
We report herein the synthesis and characterization of a phosphorus-containing cyclic azobenzene as a new photoswitchable scaffold. This backbone reveals high bidirectional photoswitching yields and high thermal stability for both isomers, with t1/2 > 90 days at 60 °C. Both E- and Z-isomers have been characterized by UV-vis spectroscopy and X-ray crystallography.
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Affiliation(s)
- Nawel Goual
- CNRS, Institut de Chimie des Substances Naturelles, Université Paris-Saclay, UPR 2301, 91198 Gif-sur-Yvette, France
| | - Stéphane Maisonneuve
- ENS Paris-Saclay, CNRS, PPSM, Université Paris-Saclay, 91190 Gif-sur-Yvette, France
| | - Pascal Retailleau
- CNRS, Institut de Chimie des Substances Naturelles, Université Paris-Saclay, UPR 2301, 91198 Gif-sur-Yvette, France
| | - Juan Xie
- ENS Paris-Saclay, CNRS, PPSM, Université Paris-Saclay, 91190 Gif-sur-Yvette, France
| | - Angela Marinetti
- CNRS, Institut de Chimie des Substances Naturelles, Université Paris-Saclay, UPR 2301, 91198 Gif-sur-Yvette, France
| | - Arnaud Voituriez
- CNRS, Institut de Chimie des Substances Naturelles, Université Paris-Saclay, UPR 2301, 91198 Gif-sur-Yvette, France
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15
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Simoens A, Kaczmarek AM, Machado IP, Van Hecke K, Stevens CV. Versatile Palladium-catalyzed intramolecular cyclization to access new luminescent azaphosphaphenalene motifs. Chemistry 2024; 30:e202303072. [PMID: 38308544 DOI: 10.1002/chem.202303072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Revised: 01/09/2024] [Accepted: 01/30/2024] [Indexed: 02/04/2024]
Abstract
Using a straightforward sequence of diphosphonylation and a Pd-catalysed concerted-metalation-deprotonation (CMD), a synthetic strategy towards polyaromatic phosphorus containing heterocycles was developed. Herein, we report the synthesis and characterization of new azaphosphaphenalenes, using easily accessible palladium catalysts and starting materials. The key tetrahydroquinoline intermediates of the reaction were synthesised via a fast and effective procedure and could be isolated as such, or further reacted towards the target polyaromatic structures. The obtained products showed interesting luminescent properties and their emission, excitation and quantum yields were evaluated.
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Affiliation(s)
- Andreas Simoens
- Department of Green Chemistry and Technology, Synthesis, Bioresources and Bioorganic Chemistry Research Group, Ghent University, Coupure Links 653, 9000, Ghent, Belgium
| | - Anna M Kaczmarek
- NanoSensing Group, Department of Chemistry, Ghent University, Krijgslaan 281, S3, 9000, Ghent, Belgium
| | - Ian P Machado
- NanoSensing Group, Department of Chemistry, Ghent University, Krijgslaan 281, S3, 9000, Ghent, Belgium
| | - Kristof Van Hecke
- XStruct, Department of Chemistry, Ghent University, Krijgslaan 281, S3, 9000, Ghent, Belgium
| | - Christian V Stevens
- Department of Green Chemistry and Technology, Synthesis, Bioresources and Bioorganic Chemistry Research Group, Ghent University, Coupure Links 653, 9000, Ghent, Belgium
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16
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Yin L, Li J, Wu C, Zhang H, Zhao W, Fan Z, Liu M, Zhang S, Guo M, Dou X, Guo D. Asymmetric synthesis of P-stereogenic phosphindane oxides via kinetic resolution and their biological activity. Nat Commun 2024; 15:2548. [PMID: 38514631 PMCID: PMC10957969 DOI: 10.1038/s41467-024-46892-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Accepted: 03/14/2024] [Indexed: 03/23/2024] Open
Abstract
The importance of P-stereogenic heterocycles has been widely recognized with their extensive use as privileged chiral ligands and bioactive compounds. The catalytic asymmetric synthesis of P-stereogenic phosphindane derivatives, however, remains a challenging task. Herein, we report a catalytic kinetic resolution of phosphindole oxides via rhodium-catalyzed diastereo- and enantioselective conjugate addition to access enantiopure P-stereogenic phosphindane and phosphindole derivatives. This kinetic resolution method features high efficiency (s factor up to >1057), excellent stereoselectivities (all >20:1 dr, up to >99% ee), and a broad substrate scope. The obtained chiral phosphindane oxides exhibit promising therapeutic efficacy in autosomal dominant polycystic kidney disease (ADPKD), and compound 3az is found to significantly inhibit renal cyst growth both in vitro and in vivo, thus ushering in a promising scaffold for ADPKD drug discovery. This study will not only advance efforts towards the asymmetric synthesis of challenging P-stereogenic heterocycles, but also surely inspire further development of P-stereogenic entities for bioactive small-molecule discovery.
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Affiliation(s)
- Long Yin
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, China
| | - Jiajia Li
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, China
| | - Changhui Wu
- Department of Chemistry, School of Science, China Pharmaceutical University, Nanjing, China
| | - Haoran Zhang
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, China
| | - Wenchao Zhao
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, China
| | - Zhiyuan Fan
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, China
| | - Mengxuan Liu
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, China
| | - Siqi Zhang
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, China
| | - Mengzhe Guo
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, China.
| | - Xiaowei Dou
- Department of Chemistry, School of Science, China Pharmaceutical University, Nanjing, China.
| | - Dong Guo
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, China.
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17
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Tokura Y, Xu S, Yasui K, Nishii Y, Hirano K. Pd-catalysed C-H alkynylation of benzophospholes. Chem Commun (Camb) 2024; 60:2792-2795. [PMID: 38362673 DOI: 10.1039/d3cc05994d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2024]
Abstract
A palladium-catalysed C2-H alkynylation of benzophospholes with alkynyl bromides has been developed to afford the corresponding phosphole-alkyne conjugations in good to high yields. The C-C triple bond as well as terminal alkyne C-H bond in the obtained products is a good synthetic handle for further manipulations, thus giving the versatile π-conjugated benzophosphole derivatives. The optoelectronic properties of the newly synthesized conjugated benzophospholes are also described.
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Affiliation(s)
- Yu Tokura
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - Shibo Xu
- Innovative Catalysis Science Division, Institute for Open and Transdisciplinary Research Initiatives (ICS-OTRI), Osaka University, Suita, Osaka 565-0871, Japan.
| | - Kosuke Yasui
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - Yuji Nishii
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - Koji Hirano
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
- Innovative Catalysis Science Division, Institute for Open and Transdisciplinary Research Initiatives (ICS-OTRI), Osaka University, Suita, Osaka 565-0871, Japan.
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18
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Schenk M, König N, Hey-Hawkins E, Beck-Sickinger AG. Illuminating the Path to Enhanced Bioimaging by Phosphole-based Fluorophores. Chembiochem 2024; 25:e202300857. [PMID: 38206088 DOI: 10.1002/cbic.202300857] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Accepted: 01/10/2024] [Indexed: 01/12/2024]
Abstract
As the research of biological systems becomes increasingly complex, there is a growing demand for fluorophores with a diverse range of wavelengths. In this study, we introduce phosphole-based fluorophores that surpass existing options like dansyl chloride. The reactive S-Cl bond in chlorosulfonylimino-5-phenylphosphole derivatives allows rapid and direct coupling to peptides making the fluorophores easily introducible to peptides. This coupling process occurs under mild conditions, demonstrated for [F7 ,P34 ]-NPY and its shorter analogues. Peptides linked with our fluorophores exhibit similar receptor activation to the control peptide, while maintaining high stability and low toxicity, making them ideal biolabeling reagents. In fluorescence microscopy experiments, they can be easily visualized even at low concentrations, without suffering from the typical issue of bleaching. These phosphole-based fluorophores represent a significant leap forward in the field. Their versatility, ease of modification, superior performance, and applicability in biological labeling make them a promising choice for researchers seeking advanced tools to unravel the details of complex biological systems.
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Affiliation(s)
- Mareike Schenk
- Leipzig University, Faculty of Life Sciences, Institute of Biochemistry, Brüderstrasse 34, 04103, Leipzig, Germany
| | - Nils König
- Leipzig University, Faculty of Chemistry and Mineralogy, Institute of Inorganic Chemistry, Johannisallee 29, 04103, Leipzig, Germany
| | - Evamarie Hey-Hawkins
- Leipzig University, Faculty of Chemistry and Mineralogy, Institute of Inorganic Chemistry, Johannisallee 29, 04103, Leipzig, Germany
| | - Annette G Beck-Sickinger
- Leipzig University, Faculty of Life Sciences, Institute of Biochemistry, Brüderstrasse 34, 04103, Leipzig, Germany
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19
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Truong MA, Morishita S, Noguchi K, Nakano K. The Synthesis and Properties of Ladder-Type π-Conjugated Compounds with Pyrrole and Phosphole Rings. Molecules 2023; 29:38. [PMID: 38202617 PMCID: PMC10779499 DOI: 10.3390/molecules29010038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Revised: 12/15/2023] [Accepted: 12/18/2023] [Indexed: 01/12/2024] Open
Abstract
The phosphole ring is known as a useful building block for constructing π-conjugated organic materials. Here, we report ladder-type benzophospholo[3,2-b]indole (BPI) derivatives where the phosphole and the pyrrole rings are directly fused. Compounds 8a-8d with different aryl groups on the phosphorous center were successfully synthesized, and the solid-state structure of 8a was confirmed using X-ray crystallographic analysis. The BPIs exhibit relatively high fluorescence quantum yield (Φ 0.50-0.72) and demonstrate a larger Stokes shift compared with a series of benzophospholo[3,2-b]benzoheteroles. The benzophospholo[3,2-b]carbazole derivative 9, which possesses a benzene ring between the phosphole and the pyrrole rings of the BPI, was also synthesized, and its solid-state structure was confirmed using X-ray crystallographic analysis. Compound 9 was found to show a smaller Stokes shift compared with the BPI.
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Affiliation(s)
- Minh Anh Truong
- Department of Applied Chemistry, Graduate School of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Naka-cho, Koganei, Tokyo 184-8588, Japan; (M.A.T.); (S.M.)
| | - Suzuho Morishita
- Department of Applied Chemistry, Graduate School of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Naka-cho, Koganei, Tokyo 184-8588, Japan; (M.A.T.); (S.M.)
| | - Keiichi Noguchi
- Instrumentation Analysis Center, Tokyo University of Agriculture and Technology, 2-24-16 Naka-cho, Koganei, Tokyo 184-8588, Japan;
| | - Koji Nakano
- Department of Applied Chemistry, Graduate School of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Naka-cho, Koganei, Tokyo 184-8588, Japan; (M.A.T.); (S.M.)
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20
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Pugliese ER, Benner F, Demir S. From an Isolable Bismolyl Anion to an Yttrium-Bismolyl Complex with μ-Bridging Bismuth(I) Centers and Polar Covalent Y-Bi Bonds. Chemistry 2023; 29:e202302687. [PMID: 37650379 DOI: 10.1002/chem.202302687] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Revised: 08/25/2023] [Accepted: 08/28/2023] [Indexed: 09/01/2023]
Abstract
The synthesis and first structural characterization of the [K(18-crown-6)] bismolyl Bitet (C4 Me4 Bi) contact ion pair (1) is presented. Notably, according to Natural Resonance Theory calculations, the Bitet anion of 1 features two types of leading mesomeric structures with localized anionic charge and two lone pairs of electrons at the BiI center, as well as delocalized anionic charge in the π-conjugated C4 Bi ring. The lone pairs at Bi enable a unique bridging coordination mode of the bismolyl ligand, as shown for the first rare earth metal bismolyl complex (Cptet 2 Y)2 (μ-η1 -Bitet )2 (2). The latter results from the salt metathesis reaction of KBitet with Cptet 2 Y(BPh4 ) (Cptet =C5 Me4 H). The Y-Bi bonding interaction in 2 of 16.6 % covalency at yttrium is remarkably large.
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Affiliation(s)
| | - Florian Benner
- Department of Chemistry, Michigan State University, East Lansing, MI 48824, USA
| | - Selvan Demir
- Department of Chemistry, Michigan State University, East Lansing, MI 48824, USA
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21
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Chemin A, Knysh I, Ari D, Cordier M, Roisnel T, Guennic BL, Hissler M, Jacquemin D, Bouit PA. Phospha-cyanines in Their Ideal Polymethine State: Synthesis and Structure-Property Relationships. J Phys Chem A 2023. [PMID: 38051511 DOI: 10.1021/acs.jpca.3c07039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2023]
Abstract
We report the synthesis and full characterization of a family of phosphorus-containing polymethine cyanines (phospha-cyanines). The compounds are easily prepared in two steps, starting from readily available phosphanes. The impact of the P-substituents and the counterions on the structural and optical properties is investigated through a joint experimental/theoretical approach. Based on the study of the single-crystal X-ray diffraction structures, all phospha-cyanines present a bond length alternation close to zero, independently of the substituents and counterions, which indicates an ideal polymethine state. All these compounds display the typical cyanine-like UV-vis absorption with an intense and sharp transition with a vibronic shoulder despite possessing a reverse electronic configuration compared to "classical" cyanines. Time-dependent density-functional theory calculations allowed us to fully rationalize the optical properties (absorption/emission wavelengths, luminescence quantum yields). Interestingly, due to the tetrahedral shape of the P atom, the optical properties are independent of the counterion, which is in marked contrast with N-analogues, which enables predictive engineering of the phospha-cyanines regardless of the medium in which they are used.
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Affiliation(s)
| | - Iryna Knysh
- Nantes Université, CNRS, CEISAM UMR 6230, Nantes F-44000, France
| | - Denis Ari
- Univ Rennes, CNRS, ISCR─UMR 6226, Rennes F-35000, France
| | - Marie Cordier
- Univ Rennes, CNRS, ISCR─UMR 6226, Rennes F-35000, France
| | | | | | - Muriel Hissler
- Univ Rennes, CNRS, ISCR─UMR 6226, Rennes F-35000, France
| | - Denis Jacquemin
- Nantes Université, CNRS, CEISAM UMR 6230, Nantes F-44000, France
- Institut Universitaire de France (IUF), Paris F-75005, France
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22
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Zhang FP, Wang RH, Li JF, Chen H, Hari Babu M, Ye M. Intermolecular Carbophosphination of Alkynes with Phosphole Oxides via Ni-Al Bimetal-Catalyzed C-P Bond Activation. Angew Chem Int Ed Engl 2023; 62:e202314701. [PMID: 37846814 DOI: 10.1002/anie.202314701] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2023] [Revised: 10/15/2023] [Accepted: 10/17/2023] [Indexed: 10/18/2023]
Abstract
Intermolecular carbophosphination reaction of alkynes or alkenes with unreactive C-P bonds remains an elusive challenge. Herein, we used a Ni-Al bimetallic catalyst to realize an intermolecular carbophosphination reaction of alkynes with 5-membered phosphole oxides, providing a series of 7-membered phosphepines in up to 94 % yield.
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Affiliation(s)
- Feng-Ping Zhang
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Haihe Laboratory of Sustainable Chemical Transformations, Frontiers Science Center for New Organic Matter, Nankai University, Tianjin, 300071, China
| | - Rong-Hua Wang
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Haihe Laboratory of Sustainable Chemical Transformations, Frontiers Science Center for New Organic Matter, Nankai University, Tianjin, 300071, China
| | - Jiang-Fei Li
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Haihe Laboratory of Sustainable Chemical Transformations, Frontiers Science Center for New Organic Matter, Nankai University, Tianjin, 300071, China
| | - Hao Chen
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Haihe Laboratory of Sustainable Chemical Transformations, Frontiers Science Center for New Organic Matter, Nankai University, Tianjin, 300071, China
| | - Madala Hari Babu
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Haihe Laboratory of Sustainable Chemical Transformations, Frontiers Science Center for New Organic Matter, Nankai University, Tianjin, 300071, China
| | - Mengchun Ye
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Haihe Laboratory of Sustainable Chemical Transformations, Frontiers Science Center for New Organic Matter, Nankai University, Tianjin, 300071, China
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23
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Zhou X, Wang J, Shen Y, Ma D, Zhao Y, Wu J. Cp 2Fe-Mediated Electrochemical Synthesis of Phosphorylated Oxindoles and Indolo[2,1- a]isoquinolin-6(5 H)-ones. J Org Chem 2023. [PMID: 37990818 DOI: 10.1021/acs.joc.3c02017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2023]
Abstract
An efficient and environmentally friendly electrochemical synthesis of phosphorylated oxindoles and indolo[2,1-a]isoquinolin-6(5H)-ones mediated by readily available Cp2Fe has been developed, which illustrated a broad substrate scope and diverse functional group compatibility. This protocol featured an external oxidant-free process and was at room temperature, which was proposed to be driven by the anodic oxidation of Cp2Fe.
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Affiliation(s)
- Xiaocong Zhou
- Institute of Drug Discovery Technology, Ningbo University, Zhejiang 315211, China
| | - Jian Wang
- Institute of Drug Discovery Technology, Ningbo University, Zhejiang 315211, China
| | - Yirui Shen
- School of Materials and Chemical Engineering, Ningbo University of Technology, Ningbo 315211, Zhejiang China
- Zhejiang Institute of Tianjin University, Ningbo, Zhejiang 315201, China
| | - Dumei Ma
- Key Laboratory of Advanced Mass Spectrometry and Molecular Analysis of Zhejiang Province, Institute of Mass Spectrometry, School of Material Science and Chemical Engineering, Ningbo University, Zhejiang 315211, China
| | - Yufen Zhao
- Institute of Drug Discovery Technology, Ningbo University, Zhejiang 315211, China
| | - Ju Wu
- Institute of Drug Discovery Technology, Ningbo University, Zhejiang 315211, China
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24
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Zeng JH, Du DT, Liu BE, Zhang ZQ, Zhan ZP. Photoredox-Catalyzed Phosphonocarboxylation of Allenes with Phosphine Oxides and CO 2. J Org Chem 2023; 88:14789-14796. [PMID: 37816195 DOI: 10.1021/acs.joc.3c01583] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/12/2023]
Abstract
Phosphonocarboxylation of allenes with diarylphosphine oxides and CO2 via visible-light photoredox catalysis was developed for the first time. This work provided practical and sustainable access to highly valuable but otherwise difficult-to-access linear allylic β-phosphonyl carboxylic acids in moderate yields with exclusive regio- and stereoselectivity. This method was also characterized by step and atom economy and transition-metal free and mild conditions. Preliminary mechanistic studies suggested that allyl-methyl carbanion species are the key intermediates.
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Affiliation(s)
- Jia-Hao Zeng
- Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361001, Fujian, People's Republic of China
| | - Deng-Tao Du
- Gulei Innovation Institute, Xiamen University, Zhangzhou 363100, Fujian, People's Republic of China
| | - Bao-En Liu
- Gulei Innovation Institute, Xiamen University, Zhangzhou 363100, Fujian, People's Republic of China
| | - Zhen-Qiang Zhang
- Yunnan Precious Metals Laboratory Company, Ltd., Kunming 650106, Yunnan, People's Republic of China
| | - Zhuang-Ping Zhan
- Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361001, Fujian, People's Republic of China
- Gulei Innovation Institute, Xiamen University, Zhangzhou 363100, Fujian, People's Republic of China
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25
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Ramazanova K, Müller AK, Lönnecke P, Hollóczki O, Kirchner B, Hey-Hawkins E. Ring-Opening Reaction of 1-Phospha-2-Azanorbornenes via P-N Bond Cleavage and Reversibility Studies. Molecules 2023; 28:7163. [PMID: 37894642 PMCID: PMC10609391 DOI: 10.3390/molecules28207163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Revised: 10/10/2023] [Accepted: 10/16/2023] [Indexed: 10/29/2023] Open
Abstract
The reactive P-N bond in 1-phospha-2-azanorbornenes is readily cleaved by simple alcohols to afford P-chiral 2,3-dihydrophosphole derivatives as a racemic mixture. The isolation of the products was not possible due to the reversibility of the reaction, which could, however, be stopped by sulfurization of the phosphorus atom, thus efficiently blocking the lone pair of electrons, as exemplified for 6b yielding structurally characterized 8b. Additionally, the influence of the substituent in the α position to the phosphorus atom (H, Ph, 2-py, CN) on the reversibility of the reaction was studied. Extensive theoretical calculations for understanding the ring-closing mechanism suggested that a multi-step reaction with one or more intermediates was most probable.
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Affiliation(s)
- Kyzgaldak Ramazanova
- Institute of Inorganic Chemistry, Faculty of Chemistry and Mineralogy, Leipzig University, Johannisallee 29, 04103 Leipzig, Germany; (K.R.); (P.L.)
| | - Anna Karina Müller
- Mulliken Center for Theoretical Chemistry, Institute for Physical and Theoretical Chemistry, Beringstr. 4, 53115 Bonn, Germany; (A.K.M.); (B.K.)
| | - Peter Lönnecke
- Institute of Inorganic Chemistry, Faculty of Chemistry and Mineralogy, Leipzig University, Johannisallee 29, 04103 Leipzig, Germany; (K.R.); (P.L.)
| | - Oldamur Hollóczki
- Department of Physical Chemistry, Faculty of Science and Technology, University of Debrecen, Egyetem ter 1, H-4010 Debrecen, Hungary;
| | - Barbara Kirchner
- Mulliken Center for Theoretical Chemistry, Institute for Physical and Theoretical Chemistry, Beringstr. 4, 53115 Bonn, Germany; (A.K.M.); (B.K.)
| | - Evamarie Hey-Hawkins
- Institute of Inorganic Chemistry, Faculty of Chemistry and Mineralogy, Leipzig University, Johannisallee 29, 04103 Leipzig, Germany; (K.R.); (P.L.)
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26
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Gao Z, Wang Y, Zhou Y, Yuan B, Duan Z. Synthesis and properties of photoluminescent phosphorus-doped triptycenes. Dalton Trans 2023; 52:11390-11394. [PMID: 37552089 DOI: 10.1039/d3dt02308g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/09/2023]
Abstract
A new class of phosphorus-doped triptycenes was designed and synthesized via a Diels-Alder reaction between alkynylphosphonates and anthracene, followed by oxidative cyclization. The packing interaction and molecular alignment in the single crystals revealed that the weak C-H⋯π (2.825 Å) interaction guides the self-assembly of phosphindole oxide iptycenes. The photophysical and electrochemical properties of these photoluminescent phosphorus-doped iptycenes were characterized to gain a deeper understanding of their fluorescence tunability. The presence of functional groups on the phenyl ring of the P-doped fin and the chemical environment of the P atom both had an effect on the fluorescence emission.
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Affiliation(s)
- Zengye Gao
- College of Chemistry, Green Catalysis Center, International Phosphorus Laboratory, International Joint Research Laboratory for Functional Organophosphorus Materials of Henan Province, Zhengzhou University, Zhengzhou 450001, P. R. China.
| | - Yue Wang
- College of Chemistry, Green Catalysis Center, International Phosphorus Laboratory, International Joint Research Laboratory for Functional Organophosphorus Materials of Henan Province, Zhengzhou University, Zhengzhou 450001, P. R. China.
| | - Yang Zhou
- College of Chemistry, Green Catalysis Center, International Phosphorus Laboratory, International Joint Research Laboratory for Functional Organophosphorus Materials of Henan Province, Zhengzhou University, Zhengzhou 450001, P. R. China.
| | - Bingxin Yuan
- College of Chemistry, Green Catalysis Center, International Phosphorus Laboratory, International Joint Research Laboratory for Functional Organophosphorus Materials of Henan Province, Zhengzhou University, Zhengzhou 450001, P. R. China.
| | - Zheng Duan
- College of Chemistry, Green Catalysis Center, International Phosphorus Laboratory, International Joint Research Laboratory for Functional Organophosphorus Materials of Henan Province, Zhengzhou University, Zhengzhou 450001, P. R. China.
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27
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Brzyska A, Majewski S, Ponikiewski Ł, Zubik-Duda M, Lipke A, Gładysz-Płaska A, Sowa S. Benzophosphol-3-yl Triflates as Precursors of 1,3-Diarylbenzophosphole Oxides. J Org Chem 2023. [PMID: 37276533 DOI: 10.1021/acs.joc.2c02355] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
A simple method for the synthesis of 3-arylbenzophosphole oxides under Suzuki-Miyaura coupling conditions has been presented. It employs benzophosphol-3-yl triflate starting materials which, prior to our work, had not been used for the synthesis of 3-arylbenzophosphole oxides. The reactions proceed over 24 h and provide a library of 3-arylbenzophosphole oxides. The synthetic access to the benzophosphol-3-yl triflates has been improved. The preliminary photophysical properties of some 3-arylbenzophosphole oxides have been investigated by absorption and emission measurements. The theoretical calculations were performed to establish structure-property relationships.
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Affiliation(s)
- Agnieszka Brzyska
- Jerzy Haber Institute of Catalysis and Surface Chemistry, Polish Academy of Sciences, 8 Niezapominajek St., Krakow PL-30-239, Poland
| | - Sebastian Majewski
- Department of Organic Chemistry and Crystallochemistry, Faculty of Chemistry, Institute of Chemical Sciences, Maria Curie-Sklodowska University in Lublin, 33 Gliniana St., Lublin PL-20-614, Poland
| | - Łukasz Ponikiewski
- Department of Inorganic Chemistry, Faculty of Chemistry, Gdańsk University of Technology, 11/12 G. Narutowicza St., Gdańsk PL-80-233, Poland
| | - Monika Zubik-Duda
- Department of Biophysics, Institute of Physics, Maria Curie-Sklodowska University in Lublin, PL-20-031 Lublin, Poland
| | - Agnieszka Lipke
- Institute of Chemical Sciences, Maria Curie-Sklodowska University in Lublin, 2/9 M. Curie-Sklodowska sq., Lublin PL-20-031, Poland
| | - Agnieszka Gładysz-Płaska
- Department of Inorganic Chemistry, Faculty of Chemistry, Institute of Chemical Sciences, Maria Curie-Sklodowska University in Lublin, 2/13-15A M. Curie-Sklodowska sq., Lublin PL-20-031, Poland
| | - Sylwia Sowa
- Department of Organic Chemistry and Crystallochemistry, Faculty of Chemistry, Institute of Chemical Sciences, Maria Curie-Sklodowska University in Lublin, 33 Gliniana St., Lublin PL-20-614, Poland
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28
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Ding J, Luo S, Xu Y, An Q, Yang Y, Zuo Z. Selective oxidation of benzylic alcohols via synergistic bisphosphonium and cobalt catalysis. Chem Commun (Camb) 2023; 59:4055-4058. [PMID: 36929170 DOI: 10.1039/d3cc00532a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/18/2023]
Abstract
A synergistic photocatalytic system using a bisphosphonium catalyst and a cobalt catalyst has been developed, enabling the selective oxidation of benzylic alcohols under oxidant-free and environmentally benign conditions. High efficiencies have been obtained for a variety of alcohol substrates, and exclusive selectivity for aldehyde products has been achieved across the board. Furthermore, this photocatalytic system proved to be efficient when performed under continuous-flow conditions, even using a simple and easily assembled continuous-flow setup.
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Affiliation(s)
- Jia Ding
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China.,State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China.
| | - Shuaishuai Luo
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China.,State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China.
| | - Yuanli Xu
- Innovation Center for Chenguang High Performance Fluorine Material, Key Laboratory of Green Chemistry of Sichuan Institutes of Higher Education, Sichuan University of Science and Engineering, Zigong, CN 643000, China
| | - Qing An
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - Yi Yang
- Innovation Center for Chenguang High Performance Fluorine Material, Key Laboratory of Green Chemistry of Sichuan Institutes of Higher Education, Sichuan University of Science and Engineering, Zigong, CN 643000, China
| | - Zhiwei Zuo
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China.
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29
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Nishimura K, Xu S, Nishii Y, Hirano K. One-Step Synthesis of Benzophosphole Derivatives from Arylalkynes by Phosphenium-Dication-Mediated Sequential C-P/C-C Bond Forming Reaction. Org Lett 2023; 25:1503-1508. [PMID: 36820626 DOI: 10.1021/acs.orglett.3c00263] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
Abstract
A metal-free, phosphenium-dication-mediated sequential C-P and C-C bond forming reaction has been developed. This protocol can provide concise access to the (di)benzophosphole derivatives in one synthetic operation from the readily available and simple arylalkynes and phosphinic acids. Application to the multiple cyclization reaction and the fully intermolecular three-component-coupling-type reaction are also described.
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Affiliation(s)
- Kazutoshi Nishimura
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - Shibo Xu
- Innovative Catalysis Science Division, Institute for Open and Transdisciplinary Research Initiatives (ICS-OTRI), Osaka University, Suita, Osaka 565-0871, Japan
| | - Yuji Nishii
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - Koji Hirano
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan.,Innovative Catalysis Science Division, Institute for Open and Transdisciplinary Research Initiatives (ICS-OTRI), Osaka University, Suita, Osaka 565-0871, Japan
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30
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Volkova Y, Zavarzin I. Synthesis of Phosphorus(V)-Substituted Six-Membered N-Heterocycles: Recent Progress and Challenges. Molecules 2023; 28:molecules28062472. [PMID: 36985443 PMCID: PMC10054050 DOI: 10.3390/molecules28062472] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Revised: 03/02/2023] [Accepted: 03/02/2023] [Indexed: 03/11/2023] Open
Abstract
Heterocycles functionalized with pentavalent phosphorus are of great importance since they include a great variety of biologically active compounds and pharmaceuticals, advanced materials, and valuable reactive intermediates for organic synthesis. Significant progress in synthesis of P(O)R2-substituted six-membered heterocycles has been made in the past decade. This review covers the synthetic strategies towards aromatic monocyclic six-membered N-heterocycles, such as pyridines, pyridazines, pyrimidines, and pyrazines bearing phosphonates and phosphine oxides, which were reported from 2012 to 2022.
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31
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König N, Godínez-Loyola Y, Yang F, Laube C, Laue M, Lönnecke P, Strassert CA, Hey-Hawkins E. Facile modification of phosphole-based aggregation-induced emission luminogens with sulfonyl isocyanates. Chem Sci 2023; 14:2267-2274. [PMID: 36873851 PMCID: PMC9977459 DOI: 10.1039/d3sc00308f] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Accepted: 01/23/2023] [Indexed: 02/05/2023] Open
Abstract
Phosphole oxides undergo a highly chemoselective reaction with sulfonyl isocyanates forming sulfonylimino phospholes in high yields. This facile modification proved to be a powerful tool for obtaining new phosphole-based aggregation-induced emission (AIE) luminogens with high fluorescence quantum yields in the solid state. Changing the chemical environment of the phosphorus atom of the phosphole framework results in a significant shift of the fluorescence maximum to longer wavelengths.
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Affiliation(s)
- Nils König
- Leipzig University, Faculty of Chemistry and Mineralogy, Institute of Inorganic Chemistry Johannisallee 29 04103 Leipzig Germany
| | - Yokari Godínez-Loyola
- Institut für Anorganische und Analytische Chemie, CiMiC, SoN and CeNTech, Westfälische Wilhelms-Universität Münster Heisenbergstraße 11 48149 Münster Germany
| | - Fangshun Yang
- Leibniz-Institut für Oberflächenmodifizierung e.V. Permoserstrasse 15 04318 Leipzig Germany
| | - Christian Laube
- Leibniz-Institut für Oberflächenmodifizierung e.V. Permoserstrasse 15 04318 Leipzig Germany
| | - Michael Laue
- Leipzig University, Faculty of Chemistry and Mineralogy, Institute of Organic Chemistry Johannisallee 29 04103 Leipzig Germany
| | - Peter Lönnecke
- Leipzig University, Faculty of Chemistry and Mineralogy, Institute of Inorganic Chemistry Johannisallee 29 04103 Leipzig Germany
| | - Cristian A Strassert
- Institut für Anorganische und Analytische Chemie, CiMiC, SoN and CeNTech, Westfälische Wilhelms-Universität Münster Heisenbergstraße 11 48149 Münster Germany
| | - Evamarie Hey-Hawkins
- Leipzig University, Faculty of Chemistry and Mineralogy, Institute of Inorganic Chemistry Johannisallee 29 04103 Leipzig Germany
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32
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Solgi L, Mirjafary Z, Mokhtari J, Saeidian H. Phosphole aromaticity enhancement by electron pumping through Schleyer hyperconjugative aromaticity: A comprehensive DFT study. Chem Phys Lett 2023. [DOI: 10.1016/j.cplett.2023.140472] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/31/2023]
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33
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Tsurusaki A, Tahara S, Nakamura M, Matsumoto H, Kamikawa K. Synthesis, Structures, and Properties of π-Extended Phosphindolizine Derivatives. Chemistry 2023; 29:e202203321. [PMID: 36539376 DOI: 10.1002/chem.202203321] [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: 10/26/2022] [Revised: 12/19/2022] [Accepted: 12/20/2022] [Indexed: 12/24/2022]
Abstract
Dibenzo[b,g]phosphindolizine oxide and three types of benzo[e]naphthophosphindolizine oxides have been synthesized by the ring-closing metathesis of benzo[b]phosphole oxide and naphthophosphole oxides with two olefin tethers. Their molecular structures and properties were revealed by X-ray crystallographic analysis, UV-vis spectroscopy, and electrochemical analysis. The number and position of the benzene rings were found to alter the structural geometry and the HOMO/LUMO energy levels, and their effects were investigated by theoretical calculations. Among the phosphindolizine oxide derivatives investigated, only benzo[e]naphtho[2,3-b]phosphindolizine oxide with the naphthalene ring fused at 2,3-positions showed weak yellow fluorescence with a large Stokes shift.
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Affiliation(s)
- Akihiro Tsurusaki
- Department of Chemistry, Graduate School of Science, Osaka Metropolitan University, Sakai, Osaka, 599-8531, Japan
| | - Sana Tahara
- Department of Chemistry, Graduate School of Science, Osaka Metropolitan University, Sakai, Osaka, 599-8531, Japan
| | - Makoto Nakamura
- Department of Chemistry, Graduate School of Science, Osaka Metropolitan University, Sakai, Osaka, 599-8531, Japan
| | - Hiroyo Matsumoto
- Department of Chemistry, Graduate School of Science, Osaka Metropolitan University, Sakai, Osaka, 599-8531, Japan
| | - Ken Kamikawa
- Department of Chemistry, Graduate School of Science, Osaka Metropolitan University, Sakai, Osaka, 599-8531, Japan
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34
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Li C, Huang H, Sun L, Huang M, Ding H, Bai J, Cao BP, Xiao Q. Three-Component Synthesis of Dioxaphosphorane-Fused Diphosphacycles Exhibiting Unique Dynamic Fluorescence "On/Off" Properties. Angew Chem Int Ed Engl 2023; 62:e202215436. [PMID: 36524991 DOI: 10.1002/anie.202215436] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Revised: 12/16/2022] [Accepted: 12/16/2022] [Indexed: 12/23/2022]
Abstract
Rigidly planar polycyclic phosphacycles featuring an internal dioxaphosphorane are promising photofunctional materials. However, the lack of efficient synthetic methods resulted in limited structural diversities which significantly hampered extensive study. Herein, we report a straightforward three-component synthesis of novel dioxaphosphorane-fused diphosphacycles with distinctive photophysical properties. Control experiments and theory calculations were performed to account for a plausible reaction mechanism. We also systematically investigated the structure-property relationships of these unprecedented platforms by combining experiments (X-ray analysis, optical and redox properties) and theoretical computations. Based on their unique structure and properties, a novel fluorescent switch for pH sensing was revealed by a dynamic ring-opening/ring-closing process.
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Affiliation(s)
- Chenchen Li
- Key Laboratory of Organic Chemistry in Jiangxi Province, Institute of Organic Chemistry, Jiangxi Science & Technology Normal University, Nanchang, 330013, China
| | - Haiyang Huang
- Key Laboratory of Organic Chemistry in Jiangxi Province, Institute of Organic Chemistry, Jiangxi Science & Technology Normal University, Nanchang, 330013, China
| | - Longgen Sun
- Key Laboratory of Organic Chemistry in Jiangxi Province, Institute of Organic Chemistry, Jiangxi Science & Technology Normal University, Nanchang, 330013, China
| | - Mingqing Huang
- Key Laboratory of Organic Chemistry in Jiangxi Province, Institute of Organic Chemistry, Jiangxi Science & Technology Normal University, Nanchang, 330013, China
| | - Haixin Ding
- Key Laboratory of Organic Chemistry in Jiangxi Province, Institute of Organic Chemistry, Jiangxi Science & Technology Normal University, Nanchang, 330013, China
| | - Jiang Bai
- Key Laboratory of Organic Chemistry in Jiangxi Province, Institute of Organic Chemistry, Jiangxi Science & Technology Normal University, Nanchang, 330013, China
| | - Ban-Peng Cao
- Key Laboratory of Organic Chemistry in Jiangxi Province, Institute of Organic Chemistry, Jiangxi Science & Technology Normal University, Nanchang, 330013, China
| | - Qiang Xiao
- Key Laboratory of Organic Chemistry in Jiangxi Province, Institute of Organic Chemistry, Jiangxi Science & Technology Normal University, Nanchang, 330013, China
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35
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Pandey MK, Mondal D, Kote BS, Balakrishna MS. Synthesis and Photophysical Properties of Heavier Pnictogen Complexes. Chempluschem 2023; 88:e202200460. [PMID: 36756696 DOI: 10.1002/cplu.202200460] [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: 12/27/2022] [Revised: 02/02/2023] [Accepted: 02/02/2023] [Indexed: 02/10/2023]
Abstract
Recent success in the synthesis of π-conjugated heavier pnictogen (As, Sb, and Bi) compounds and their transition metal complexes has led to the current surge in interest that led to significant development in the field of photophysical and optoelectronic properties of heavier pnictogens and their transition metal complexes. The presence of heavier pnictogens (As, Sb and Bi) in the molecular skeleton promotes inter-system crossing (ISC) and reverse inter-system crossing (RISC), because of the heavy atom effect, via altering the intermolecular interactions and orbital energy levels. As a result, π-conjugated heavier pnictogen compounds such as arsines, dibenzoarsepins, arsinoquinoline, heterofluorene, benzo[b]heterole (heterole=arsole, bismole, and stibole) show unique optoelectronic properties such as narrow bandgap, low-energy absorption, and long-wavelength emission than lighter pnictogen-based compounds. This review focuses on recent advances in the synthesis and photophysical properties of heavier pnictogen compounds. The synthesis and photophysical properties of heavier pnictogens are discussed and elaborated.
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Affiliation(s)
- Madhusudan K Pandey
- Phosphorus Laboratory Department of Chemistry, Indian Institute of Technology Bombay, Mumbai, 400076, India
| | - Dipanjan Mondal
- Phosphorus Laboratory Department of Chemistry, Indian Institute of Technology Bombay, Mumbai, 400076, India
| | - Basvaraj S Kote
- Phosphorus Laboratory Department of Chemistry, Indian Institute of Technology Bombay, Mumbai, 400076, India
| | - Maravanji S Balakrishna
- Phosphorus Laboratory Department of Chemistry, Indian Institute of Technology Bombay, Mumbai, 400076, India
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36
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D'Imperio N, Pelliccioli V, Grecchi S, Bossi A, Vasile F, Cauteruccio S, Arkhypchuk AI, Kumar Gupta A, Orthaber A, Ott S, Licandro E. Highly Conjugated Bis(benzo[
b
]phosphole)‐
P
‐oxides: Synthesis and Electrochemical, Optical, and Computational Studies. European J Org Chem 2022. [DOI: 10.1002/ejoc.202201209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Nicolas D'Imperio
- Dipartimento di Chimica Università degli Studi di Milano Via Golgi 19 20133 Milano Italy
- Department of Chemistry, Ångström Laboratory Uppsala University Box 523 751 20 Uppsala Sweden
| | - Valentina Pelliccioli
- Dipartimento di Chimica Università degli Studi di Milano Via Golgi 19 20133 Milano Italy
| | - Sara Grecchi
- Dipartimento di Chimica Università degli Studi di Milano Via Golgi 19 20133 Milano Italy
| | - Alberto Bossi
- Istituto di Scienze e Tecnologie Chimiche “Giulio Natta” Consiglio Nazionale delle Ricerche (CNR-SCITEC) Via Fantoli 16/15 20138 Milano Italy
- SmartMatLab Center via Golgi 19 I-20133 Milano Italy
| | - Francesca Vasile
- Dipartimento di Chimica Università degli Studi di Milano Via Golgi 19 20133 Milano Italy
| | - Silvia Cauteruccio
- Dipartimento di Chimica Università degli Studi di Milano Via Golgi 19 20133 Milano Italy
| | - Anna I. Arkhypchuk
- Department of Chemistry, Ångström Laboratory Uppsala University Box 523 751 20 Uppsala Sweden
| | - Arvind Kumar Gupta
- Department of Chemistry, Ångström Laboratory Uppsala University Box 523 751 20 Uppsala Sweden
| | - Andreas Orthaber
- Department of Chemistry, Ångström Laboratory Uppsala University Box 523 751 20 Uppsala Sweden
| | - Sascha Ott
- Department of Chemistry, Ångström Laboratory Uppsala University Box 523 751 20 Uppsala Sweden
| | - Emanuela Licandro
- Dipartimento di Chimica Università degli Studi di Milano Via Golgi 19 20133 Milano Italy
- SmartMatLab Center via Golgi 19 I-20133 Milano Italy
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37
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Kelly JA, Streitferdt V, Dimitrova M, Westermair FF, Gschwind RM, Berger RJF, Wolf R. Transition-Metal-Stabilized Heavy Tetraphospholide Anions. J Am Chem Soc 2022; 144:20434-20441. [DOI: 10.1021/jacs.2c08754] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- John A. Kelly
- Institute of Inorganic Chemistry, University of Regensburg, 93040 Regensburg, Germany
| | - Verena Streitferdt
- Institute of Organic Chemistry, University of Regensburg, 93040 Regensburg, Germany
| | - Maria Dimitrova
- Department of Chemistry, Faculty of Science, University of Helsinki, FI-00014 University of Helsinki, Finland
| | - Franz F. Westermair
- Institute of Organic Chemistry, University of Regensburg, 93040 Regensburg, Germany
| | - Ruth M. Gschwind
- Institute of Organic Chemistry, University of Regensburg, 93040 Regensburg, Germany
| | - Raphael J. F. Berger
- Department for Chemistry and Physics of Materials, Paris-Lodron University Salzburg, 5020 Salzburg, Austria
| | - Robert Wolf
- Institute of Inorganic Chemistry, University of Regensburg, 93040 Regensburg, Germany
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38
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Budnikova YH, Dolengovsky EL, Tarasov MV, Gryaznova TV. Recent advances in electrochemical C-H phosphorylation. Front Chem 2022; 10:1054116. [PMID: 36405320 PMCID: PMC9671283 DOI: 10.3389/fchem.2022.1054116] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Accepted: 10/17/2022] [Indexed: 09/08/2024] Open
Abstract
The activation of C-H bond, and its direct one-step functionalization, is one of the key synthetic methodologies that provides direct access to a variety of practically significant compounds. Particular attention is focused on modifications obtained at the final stages of the synthesis of complicated molecules, which requires high tolerance to the presence of existing functional groups. Phosphorus is an indispensable element of life, and phosphorus chemistry is now experiencing a renaissance due to new emerging applications in medicinal chemistry, materials chemistry (polymers, flame retardants, organic electronics, and photonics), agricultural chemistry (herbicides, insecticides), catalysis (ligands) and other important areas of science and technology. In this regard, the search for new, more selective, low-waste synthetic routes become relevant. In this context, electrosynthesis has proven to be an eco-efficient and convenient approach in many respects, where the reagents are replaced by electrodes, where the reactants are replaced by electrodes, and the applied potential the applied potential determines their "oxidizing or reducing ability". An electrochemical approach to such processes is being developed rapidly and demonstrates some advantages over traditional classical methods of C-H phosphorylation. The main reasons for success are the exclusion of excess reagents from the reaction system: such as oxidants, reducing agents, and sometimes metal and/or other improvers, which challenge isolation, increase the wastes and reduce the yield due to frequent incompatibility with these functional groups. Ideal conditions include electron as a reactant (regulated by applied potential) and the by-products as hydrogen or hydrocarbon. The review summarizes and analyzes the achievements of electrochemical methods for the preparation of various phosphorus derivatives with carbon-phosphorus bonds, and collects data on the redox properties of the most commonly used phosphorus precursors. Electrochemically induced reactions both with and without catalyst metals, where competitive oxidation of precursors leads to either the activation of C-H bond or to the generation of phosphorus-centered radicals (radical cations) or metal high oxidation states will be examined. The review focuses on publications from the past 5 years.
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Affiliation(s)
- Yulia H. Budnikova
- FRC Kazan Scientific Center of RAS, Arbuzov Institute of Organic and Physical Chemistry, Kazan, Russia
- Organic Chemistry Department, Kazan National Research Technological University, Kazan, Russia
| | - Egor L. Dolengovsky
- FRC Kazan Scientific Center of RAS, Arbuzov Institute of Organic and Physical Chemistry, Kazan, Russia
- Organic Chemistry Department, Kazan National Research Technological University, Kazan, Russia
| | - Maxim V. Tarasov
- FRC Kazan Scientific Center of RAS, Arbuzov Institute of Organic and Physical Chemistry, Kazan, Russia
| | - Tatyana V. Gryaznova
- FRC Kazan Scientific Center of RAS, Arbuzov Institute of Organic and Physical Chemistry, Kazan, Russia
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39
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Shaydullin RR, Galushko AS, Pentsak EO, Korshunov VM, Taydakov IV, Gordeev EG, Minyaev ME, Nasyrova DI, Ananikov VP. Yellow to blue switching of fluorescence by the tuning of the pentaphenylphosphole structure: phosphorus electronic state vs. ring conjugation. Phys Chem Chem Phys 2022; 24:25307-25315. [PMID: 36226548 DOI: 10.1039/d2cp03723h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
The interaction between diphenylacetylene and dichlorophenylphosphine under various conditions is a simple method for the preparation of pentaphenylphosphole derivatives exhibiting fluorescence properties. Depending on the electronic state of the various centers of the phospholic structure, it was possible to obtain molecules with fluorescence, as in the blue area for 1,2,3,4,5-pentaphenyl-2,5-dihydro-phosphole-1-oxide (H2PPPO), in the yellow area for 1,2,3,4,5-pentaphenylphosphole-1-oxide (PPPO) and in the cyan area for 1,2,3,4,5-pentaphenylphosphole (PPP). The effect of the structure and π-conjugation on the optical properties of these compounds was studied using PPP derivatives as examples. Unusual changes in the optical properties of PPP derivatives in solution and in the crystalline state are explained. In the case of agglomeration of PPPO and PPP molecules, the effect of aggregation-induced emission (AIE) was observed to have weak fluorescence in solution and strong fluorescence in the aggregated state. However, for H2PPPO, the AIE effect remains mild. With the help of experimental studies, supported by theoretical calculations, the main mechanism of the optical properties of pentaphenylphosphole derivatives has been revealed. It was observed that the intramolecular motions of PPPO and PPP are more limited in the solid state than the motions of H2PPPO, which is associated with less conjugation of the phenyl rotors of H2PPPO. The analysis of the structure and distribution of electron density showed why hydrogenation of the phosphole ring leads to a sharp change in the optical properties of pentaphenylphosphole derivatives, while the oxidation of phosphorus does not lead to the disappearance of the AIE effect and to a lesser extent affects the change in the fluorescence wavelength. Thus, it was shown how the regulation of various structural features of the phospholic ring helps to control the optical properties of such compounds.
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Affiliation(s)
- Ruslan R Shaydullin
- Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Moscow 119991, Russia.
| | - Alexey S Galushko
- Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Moscow 119991, Russia.
| | - Evgeniy O Pentsak
- Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Moscow 119991, Russia.
| | - Vladislav M Korshunov
- Lebedev Physical Institute of the Russian Academy of Sciences, Moscow 119991, Russia
| | - Ilya V Taydakov
- Lebedev Physical Institute of the Russian Academy of Sciences, Moscow 119991, Russia
| | - Evgeniy G Gordeev
- Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Moscow 119991, Russia.
| | - Mikhail E Minyaev
- Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Moscow 119991, Russia.
| | - Darina I Nasyrova
- Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Moscow 119991, Russia.
| | - Valentine P Ananikov
- Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Moscow 119991, Russia.
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40
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Ott A, Nagy PR, Benkő Z. Stability of Carbocyclic Phosphinyl Radicals: Effect of Ring Size, Delocalization, and Sterics. Inorg Chem 2022; 61:16266-16281. [PMID: 36197796 PMCID: PMC9583709 DOI: 10.1021/acs.inorgchem.2c01968] [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] [Indexed: 11/30/2022]
Abstract
![]()
In this computational study, we report on the stability
of cyclic
phosphinyl radicals with an aim for a systematical assessment of stabilization
effects. The radical stabilization energies (RSEs) were calculated
using isodesmic reactions for a large number of carbocyclic radicals
possessing different ring sizes and grades of unsaturation. In general,
the RSE values range from −1.2 to −14.0 kcal·mol–1, and they show practically no correlation with the
spin populations at the P-centers. The RSE values correlate with the
reaction Gibbs free energies calculated for the dimerization of the
studied simple radicals. Therefore, the more easily accessible RSE
values offer a cost-effective estimation of global stability in a
straightforward manner. To explore the effect of unsaturation on the
RSE values, delocalization energies were determined using appropriate
isodesmic reactions. Introducing unsaturations beside the P-center
into the backbone of the rings leads to an additive increase in the
magnitude of the delocalization energy (∼10, 20, and 30 kcal·mol–1, respectively, for radicals with one, two, and three
C=C bonds in the conjugation). Parallelly, the spin populations
at the P-centers also dwindle gradually by ∼0.1 e in the same
order, indicating that the lone electron delocalizes over the π-system.
Radicals containing exocyclic C=C π-bonds were also investigated,
and all of these radicals have rather similar stabilities independently
of the ring size, outlining the primary importance of the two exocyclic
π-bonds in the conjugation. Among the radicals involved in our
study, those with the best electronic stabilization are the unsaturated
three-, five-, six-, and seven-membered rings containing the maximum
number of conjugated vinyl fragments. The largest delocalization energy
of 31.5 kcal·mol–1 and the lowest obtained
spin population of 0.665 e were found for the fully unsaturated seven-membered
radical (phosphepin derivative). Importantly, the electronic stabilization
effects alone are insufficient for stabilizing the radicals in monomeric
forms epitomized by the exothermic dimerization energies (−40
to −58 kcal·mol–1). Therefore, it is
essential to apply sterically demanding bulky substituents on the
α-C-atoms. Tweaking the steric congestion enabled us to propose
radicals that are expected to be stable against dimerization and,
consequently, may be realistic target species for synthetic investigations.
The effects contributing to the stability of radicals having sterically
encumbered substituents have also been explored. To systematically evaluate the stabilization
effects, the
radical stabilization energies of various carbocyclic phosphinyl radicals
having saturated backbones or unsaturation(s) in either endocyclic
or exocyclic manner have been determined and analyzed. As the electronic
stabilization is alone insufficient to hamper the possible dimerization
of these species, the effect of several sterically demanding substituents
has been explored for the congeners with best electronic stabilizations,
thus enabling us to propose synthetically accessible candidates in
the future.
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Affiliation(s)
- Anna Ott
- Department of Inorganic and Analytical Chemistry, Faculty of Chemical Technology and Biotechnology, Budapest University of Technology and Economics, Műegyetem rkp. 3, H-1111 Budapest, Hungary
| | - Péter R Nagy
- Department of Physical Chemistry and Materials Science, Faculty of Chemical Technology and Biotechnology, Budapest University of Technology and Economics, Műegyetem rkp. 3, H-1111 Budapest, Hungary.,ELKH-BME Quantum Chemistry Research Group, Műegyetem rkp. 3, H-1111 Budapest, Hungary
| | - Zoltán Benkő
- Department of Inorganic and Analytical Chemistry, Faculty of Chemical Technology and Biotechnology, Budapest University of Technology and Economics, Műegyetem rkp. 3, H-1111 Budapest, Hungary.,ELKH-BME Computation Driven Chemistry Research Group, Műegyetem rkp. 3, H-1111 Budapest, Hungary
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41
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Iwasaki S, Miyake Y, Imoto H, Naka K. 1,2,5‐Triarylcycloalka[
c
]arsoles: Structural Effects of Fused‐cycloalkanes on Stability and Photophysical Properties. Chemistry 2022; 28:e202202084. [DOI: 10.1002/chem.202202084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Indexed: 11/07/2022]
Affiliation(s)
- Suzuka Iwasaki
- Faculty of Molecular Chemistry and Engineering Kyoto Institute of Technology Goshokaido-cho Matsugasaki, Sakyo-ku, Kyoto 606-8585 Japan
| | - Yusuke Miyake
- Faculty of Molecular Chemistry and Engineering Kyoto Institute of Technology Goshokaido-cho Matsugasaki, Sakyo-ku, Kyoto 606-8585 Japan
| | - Hiroaki Imoto
- Faculty of Molecular Chemistry and Engineering Kyoto Institute of Technology Goshokaido-cho Matsugasaki, Sakyo-ku, Kyoto 606-8585 Japan
| | - Kensuke Naka
- Faculty of Molecular Chemistry and Engineering Kyoto Institute of Technology Goshokaido-cho Matsugasaki, Sakyo-ku, Kyoto 606-8585 Japan
- Materials Innovation Lab Kyoto Institute of Technology Goshokaido-cho Matsugasaki, Sakyo-ku, Kyoto 606-8585 Japan
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42
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Ledos N, Sangchai T, Knysh I, Bousquet MHE, Manzhi P, Cordier M, Tondelier D, Geffroy B, Jacquemin D, Bouit PA, Hissler M. Tuning the Charge Transfer in λ 5-Phosphinines with Amino Substituents. Org Lett 2022; 24:6869-6873. [PMID: 36074731 DOI: 10.1021/acs.orglett.2c02846] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We report the substitution of λ5-phosphinines (2,6-dicarbonitrile diphenyl-1-λ5-phosphinine) with an amino group. The impact of these modifications on both the optical and redox properties is investigated using a joint experimental/theoretical approach. In particular, we show that the choice of the donor diphenylamino group dramatically impacts the nature of the charge transfer. The use of di(methoxyphenyl)amine redshifts the optical properties and allows thermally activated delayed fluorescence in the solid state. Finally, we demonstrated that λ5-phosphinines with an amino group can be used as active emitters in an electroluminescent device.
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Affiliation(s)
- Nicolas Ledos
- Univ Rennes, CNRS, ISCR - UMR 6226, 35000 Rennes, France
| | | | - Iryna Knysh
- CNRS, CEISAM UMR 6230, Nantes University,44000 Nantes, France
| | | | - Payal Manzhi
- Laboratoire de Physique des Interfaces et des Couches Minces (LPICM), CNRS, Ecole Polytechnique, IP Paris, 91128 Palaiseau Cedex, France.,Université Paris-Saclay, CEA, CNRS, NIMBE, LICSEN, 91191, Gif-sur-Yvette, France
| | - Marie Cordier
- Univ Rennes, CNRS, ISCR - UMR 6226, 35000 Rennes, France
| | - Denis Tondelier
- Laboratoire de Physique des Interfaces et des Couches Minces (LPICM), CNRS, Ecole Polytechnique, IP Paris, 91128 Palaiseau Cedex, France
| | - Bernard Geffroy
- Laboratoire de Physique des Interfaces et des Couches Minces (LPICM), CNRS, Ecole Polytechnique, IP Paris, 91128 Palaiseau Cedex, France.,Université Paris-Saclay, CEA, CNRS, NIMBE, LICSEN, 91191, Gif-sur-Yvette, France
| | - Denis Jacquemin
- CNRS, CEISAM UMR 6230, Nantes University,44000 Nantes, France
| | | | - Muriel Hissler
- Univ Rennes, CNRS, ISCR - UMR 6226, 35000 Rennes, France
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43
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Takahara C, Iwasaki S, Kihara H, Miyake Y, Imoto H, Naka K. 4-Aryldithieno[3,2- b:2',3'- d]arsoles: effects of the As-substituent on the structure, photophysical properties, and stability. Dalton Trans 2022; 51:13734-13741. [PMID: 36004456 DOI: 10.1039/d2dt02051c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Dithieno[3,2-b:2',3'-d]arsole (DTA) is one of the representative arsenic-containing conjugated units. In this work, the effects of the As-substituent on the structure, photophysical properties, and stability were investigated. Surprisingly, the As-substituent affected the structural relaxation and stability in the photo-excited state, while there was negligible effect in the ground state. Bulky substituents resulted in red-shifted emissions due to the relaxation of steric repulsion upon photo-excitation. In addition, the crystal structure highly affected the photo-degradation behaviors.
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Affiliation(s)
- Chisa Takahara
- Faculty of Molecular Chemistry and Engineering, Kyoto Institute of Technology, Goshokaido-cho, Matsugasaki, Sakyo-ku, Kyoto 606-8585, Japan.
| | - Suzuka Iwasaki
- Faculty of Molecular Chemistry and Engineering, Kyoto Institute of Technology, Goshokaido-cho, Matsugasaki, Sakyo-ku, Kyoto 606-8585, Japan.
| | - Hyota Kihara
- Faculty of Molecular Chemistry and Engineering, Kyoto Institute of Technology, Goshokaido-cho, Matsugasaki, Sakyo-ku, Kyoto 606-8585, Japan.
| | - Yusuke Miyake
- Faculty of Molecular Chemistry and Engineering, Kyoto Institute of Technology, Goshokaido-cho, Matsugasaki, Sakyo-ku, Kyoto 606-8585, Japan.
| | - Hiroaki Imoto
- Faculty of Molecular Chemistry and Engineering, Kyoto Institute of Technology, Goshokaido-cho, Matsugasaki, Sakyo-ku, Kyoto 606-8585, Japan.
| | - Kensuke Naka
- Faculty of Molecular Chemistry and Engineering, Kyoto Institute of Technology, Goshokaido-cho, Matsugasaki, Sakyo-ku, Kyoto 606-8585, Japan. .,Materials Innovation Lab, Kyoto Institute of Technology, Goshokaido-cho, Matsugasaki, Sakyo-ku, Kyoto 606-8585, Japan
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44
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Rémond E, Fehrentz J, Liénart L, Clément S, Banères J, Cavelier F. Fluorescent P‐Hydroxyphosphole for Peptide Labeling through P‐N Bond Formation. Chemistry 2022; 28:e202201526. [DOI: 10.1002/chem.202201526] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Indexed: 11/10/2022]
Affiliation(s)
- Emmanuelle Rémond
- Institut des Biomolécules Max Mousseronm IBMM, UMR 5247 Pôle Chimie Balard 1919, route de Mende 34093 Montpellier cedex 5 France
| | - Jean‐Alain Fehrentz
- Institut des Biomolécules Max Mousseronm IBMM, UMR 5247 Pôle Chimie Balard 1919, route de Mende 34093 Montpellier cedex 5 France
| | - Laure Liénart
- Institut des Biomolécules Max Mousseronm IBMM, UMR 5247 Pôle Chimie Balard 1919, route de Mende 34093 Montpellier cedex 5 France
| | - Sébastien Clément
- Institut Charles Gerhardt Montpellier, ICGM, UMR 5253 Pôle Chimie Balard 1919, route de Mende 34093 Montpellier cedex 5 France
| | - Jean‐Louis Banères
- Institut des Biomolécules Max Mousseronm IBMM, UMR 5247 Pôle Chimie Balard 1919, route de Mende 34093 Montpellier cedex 5 France
| | - Florine Cavelier
- Institut des Biomolécules Max Mousseronm IBMM, UMR 5247 Pôle Chimie Balard 1919, route de Mende 34093 Montpellier cedex 5 France
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45
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Zhu J, Wei D, Wang L, Duan Z. One Stone Three Birds: Regiodivergent Access to Amino-Substituted Benzophospholes and Their Structure-Property Relationships. J Org Chem 2022; 87:11478-11490. [PMID: 35993493 DOI: 10.1021/acs.joc.2c01078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Three series new NH2-benzophosphole oxides were synthesized from cycloaddition of o-aminophenyl phosphine oxide with alkynes. The relationship between the location of the amino group and the photophysical properties were studied by absorption and emission spectroscopies and theoretical calculation. 4-NH2-benzophosphole oxides show strong fluorescence emission and high fluorescence quantum efficiency. This "One stone three birds" process provides rapid access to multiple organophosphorus-based luminogens for the structure-property relationship study.
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Affiliation(s)
- Jiahao Zhu
- College of Chemistry, Green Catalysis Center, International Phosphorus Laboratory, International Joint Research Laboratory for Functional Organophosphorus Materials of Henan Province, Zhengzhou University, Zhengzhou 450001, China
| | - Donghui Wei
- College of Chemistry, Green Catalysis Center, Zhengzhou University, Zhengzhou 450001, China
| | - Lili Wang
- College of Chemistry, Green Catalysis Center, International Phosphorus Laboratory, International Joint Research Laboratory for Functional Organophosphorus Materials of Henan Province, Zhengzhou University, Zhengzhou 450001, China
| | - Zheng Duan
- College of Chemistry, Green Catalysis Center, International Phosphorus Laboratory, International Joint Research Laboratory for Functional Organophosphorus Materials of Henan Province, Zhengzhou University, Zhengzhou 450001, China
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46
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Regulating the dimensionality of diphosphaperylenediimide-based polymers by coordinating the out-of-plane anisotropic π-framework toward Ag+. Sci China Chem 2022. [DOI: 10.1007/s11426-022-1325-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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47
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Delouche T, Caytan E, Cordier M, Roisnel T, Taupier G, Molard Y, Vanthuyne N, Le Guennic B, Hissler M, Jacquemin D, Bouit P. Straightforward Access to Multifunctional π-Conjugated P-Heterocycles Featuring an Internal Ylidic Bond. Angew Chem Int Ed Engl 2022; 61:e202205548. [PMID: 35657685 PMCID: PMC9400969 DOI: 10.1002/anie.202205548] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2022] [Indexed: 11/13/2022]
Abstract
We report the straightforward one-pot synthesis of novel 5- or 6-membered P-heterocycles featuring an internal ylidic bond: P-containing acenaphthylenes and phenanthrenes. The stability of the compounds tolerates post-functionalization through direct arylation to introduce electron-rich/poor substituents and the synthetic strategy is also compatible with the preparation of more elaborate polyaromatic scaffolds such as acenes and helicenes. Using a joint experimental (X-ray analysis, optical and redox properties) and theoretical approach, we perform a full structure-property relationships study on these new platforms. In particular, we show that molecular engineering allows not only tuning their absorption/emission across the entire visible range but also endowing them with chiroptical or non-linear optical properties, making them valuable dyes for a large panel of photonic or opto-electronic applications.
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Affiliation(s)
- Thomas Delouche
- Univ Rennes, CNRS, ISCR—UMR 6226, ScanMAT—UMS 200135000RennesFrance
| | - Elsa Caytan
- Univ Rennes, CNRS, ISCR—UMR 6226, ScanMAT—UMS 200135000RennesFrance
| | - Marie Cordier
- Univ Rennes, CNRS, ISCR—UMR 6226, ScanMAT—UMS 200135000RennesFrance
| | - Thierry Roisnel
- Univ Rennes, CNRS, ISCR—UMR 6226, ScanMAT—UMS 200135000RennesFrance
| | - Grégory Taupier
- Univ Rennes, CNRS, ISCR—UMR 6226, ScanMAT—UMS 200135000RennesFrance
| | - Yann Molard
- Univ Rennes, CNRS, ISCR—UMR 6226, ScanMAT—UMS 200135000RennesFrance
| | | | - Boris Le Guennic
- Univ Rennes, CNRS, ISCR—UMR 6226, ScanMAT—UMS 200135000RennesFrance
| | - Muriel Hissler
- Univ Rennes, CNRS, ISCR—UMR 6226, ScanMAT—UMS 200135000RennesFrance
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48
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Yuan L, Liu Y, Sun W, Ye K, Dou C, Wang Y. PO-containing dibenzopentaarenes: facile synthesis, structures and optoelectronic properties. Dalton Trans 2022; 51:11892-11898. [PMID: 35876191 DOI: 10.1039/d2dt01889f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Incorporation of heteroatoms into polyarenes has been developed as an effective approach to alter their intrinsic structures and properties. Herein, we designed and synthesized two PO-containing dibenzopentaarene isomers (5a and 5b) and studied their structures and properties, along with those of dibenzopentaarenes containing six-membered Si- and B-heterocycles (3 and 4). These heterocyclic polyarenes have similar frameworks to well-known heptazethrene, and thus can be regarded as members of the heteroatom-doped zethrene system. The heterocycles greatly affect not only the molecular and packing structures but also the electronic structures and properties. Notably, while compounds 3 and 4 adopt almost planar geometries, 5a possesses a clearly curved conformation, leading to its brick-type slipped and dense π-π stacking mode. Moreover, the electron-withdrawing PO groups endow 5a and 5b with simultaneously lowered lowest unoccupied molecular orbital (LUMO)/highest occupied molecular orbital (HOMO) levels, whereas the p-π conjugation of the B atoms in 4 leads to its smaller energy gap and thus remarkably red-shifted absorption and fluorescence bands by over 80 nm, though all of these molecules possess similar closed-shell structures. This study thus deepens the understanding of heteroatom-doping effects, which may be expanded to develop other heteroatom-doped zethrene materials.
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Affiliation(s)
- Liuzhong Yuan
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, P. R. China.
| | - Yujia Liu
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, P. R. China.
| | - Wenting Sun
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, P. R. China.
| | - Kaiqi Ye
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, P. R. China.
| | - Chuandong Dou
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, P. R. China.
| | - Yue Wang
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, P. R. China.
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49
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Kudoh Y, Fujii K, Kimura Y, Minoura M, Matano Y. Synthesis and Optical Properties of 1,2,5,10-Tetraphenylanthra[2,3- b]phosphole Derivatives. J Org Chem 2022; 87:10493-10500. [PMID: 35819165 DOI: 10.1021/acs.joc.2c01107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
1,2,5,10-Tetraphenylanthra[2,3-b]phosphole oxides and 1-methyl-1,2,5,10-tetraphenylanthra[2,3-b]phospholium salts were prepared, and their optical properties were investigated. The substituent at the para position and the fused anthracene moiety were found to exert significant impacts on the fluorescence properties of the P-bridged 2-styrylanthracene skeleton.
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Affiliation(s)
- Yuta Kudoh
- Department of Fundamental Sciences, Graduate School of Science and Technology, Niigata University, Nishi-ku, Niigata 950-2181, Japan
| | - Kaori Fujii
- Department of Molecular Chemistry and Biochemistry, Faculty of Science and Engineering, Doshisha University, Kyotanabe 610-0321, Japan
| | - Yoshifumi Kimura
- Department of Molecular Chemistry and Biochemistry, Faculty of Science and Engineering, Doshisha University, Kyotanabe 610-0321, Japan
| | - Mao Minoura
- Department of Chemistry, College of Science, Rikkyo University, Toshima-ku, Tokyo 171-8501, Japan
| | - Yoshihiro Matano
- Department of Chemistry, Faculty of Science, Niigata University, Nishi-ku, Niigata 950-2181, Japan
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50
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Hou Y, Shi R, Yuan H, Zhang M. Highly emissive perylene diimide-based bowtie-shaped metallacycles. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2022.07.031] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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