1
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Shang J, Wang R, Yuan C, Liu Z, Zhang H, Shao X. Monoazadichalcogenasumanenes: Synthesis, Structures, and Ring Reconstruction via Atom Transfer under Acidic Conditions. Angew Chem Int Ed Engl 2022; 61:e202117504. [DOI: 10.1002/anie.202117504] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Indexed: 11/10/2022]
Affiliation(s)
- Jihai Shang
- State Key Laboratory of Applied Organic Chemistry Lanzhou University Tianshui Southern Road 222 Lanzhou 730000 Gansu Province China
| | - Renjie Wang
- State Key Laboratory of Applied Organic Chemistry Lanzhou University Tianshui Southern Road 222 Lanzhou 730000 Gansu Province China
| | - Chengshan Yuan
- State Key Laboratory of Applied Organic Chemistry Lanzhou University Tianshui Southern Road 222 Lanzhou 730000 Gansu Province China
| | - Zitong Liu
- State Key Laboratory of Applied Organic Chemistry Lanzhou University Tianshui Southern Road 222 Lanzhou 730000 Gansu Province China
| | - Hao‐Li Zhang
- State Key Laboratory of Applied Organic Chemistry Lanzhou University Tianshui Southern Road 222 Lanzhou 730000 Gansu Province China
| | - Xiangfeng Shao
- State Key Laboratory of Applied Organic Chemistry Lanzhou University Tianshui Southern Road 222 Lanzhou 730000 Gansu Province China
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2
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Zha J, Wang Z, Liu B, Tan Q, Xu B. Multicomponent Reaction of Isocyanide, Ditelluride, and Mn(III) Carboxylate: Synthesis of N-Acyl Tellurocarbamate. Org Lett 2022; 24:2863-2867. [PMID: 35420436 DOI: 10.1021/acs.orglett.2c00824] [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
A multicomponent reaction of isocyanides, ditellurides and manganese(III) carboxylates under mild reaction conditions leads to the synthesis of various N-acyl tellurocarbamates. This method demonstrates good functional tolerance and broad substrate scope and, as a result, is especially suitable for the postfunctionalization of complicated molecules such as drugs. The given method can be further extended to the synthesis of selenocarbamates.
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Affiliation(s)
- Jianjian Zha
- Department of Chemistry, Innovative Drug Research Center, Shanghai Engineering Research Center of Organ Repair, Shanghai University, Shanghai 200444, China
| | - Zhuoer Wang
- Department of Chemistry, Innovative Drug Research Center, Shanghai Engineering Research Center of Organ Repair, Shanghai University, Shanghai 200444, China
| | - Bingxin Liu
- Department of Chemistry, Innovative Drug Research Center, Shanghai Engineering Research Center of Organ Repair, Shanghai University, Shanghai 200444, China
| | - Qitao Tan
- Department of Chemistry, Innovative Drug Research Center, Shanghai Engineering Research Center of Organ Repair, Shanghai University, Shanghai 200444, China
| | - Bin Xu
- Department of Chemistry, Innovative Drug Research Center, Shanghai Engineering Research Center of Organ Repair, Shanghai University, Shanghai 200444, China.,State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China
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3
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Shang J, Wang R, Yuan C, Liu Z, Zhang HL, Shao X. Monoazadichalcogenasumanenes: Synthesis, Structures, and Ring Reconstruction via Atom Transfer under Acidic Conditions. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202117504] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Jihai Shang
- Lanzhou University State Key Laboratory of Applied Organic Chemistry 730000 Lanzhou CHINA
| | - Renjie Wang
- Lanzhou University State Key Laboratory of Applied Organic Chemistry 730000 Lanzhou CHINA
| | - Chengshan Yuan
- Lanzhou University State Key Laboratory of Applied Organic Chemistry 730000 Lanzhou CHINA
| | - Zitong Liu
- Lanzhou University State Key Laboratory of Applied Organic Chemistry 730000 Lanzhou CHINA
| | - Hao-Li Zhang
- Lanzhou University State key Laboratory of Applied Organic Chemistry 730000 Lanzhou CHINA
| | - Xiangfeng Shao
- Lanzhou University State Key Laboratory of Applied Organic Chemistry 222 Tianshui Southern Road 730000 Lanzhou CHINA
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4
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Paixão DB, Soares EGO, Salles HD, Silva CDG, Rampon DS, Schneider PH. Rongalite in PEG-400 as a general and reusable system for the synthesis of 2,5-disubstituted chalcogenophenes. Org Chem Front 2022. [DOI: 10.1039/d2qo01069k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Herein we report the use of rongalite in PEG-400 as a general, efficient, and environmentally benign reductive system for the synthesis of a wide range of 2,5-disubstituted chalcogenophenes from elemental sulfur, selenium and tellurium.
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Affiliation(s)
- Douglas B. Paixão
- Instituto de Química, Departamento de Química Orgânica, Universidade Federal do Rio Grande do Sul (UFRGS), P.O. Box 15003, 91501-970, Porto Alegre, RS, Brazil
| | - Eduardo G. O. Soares
- Instituto de Química, Departamento de Química Orgânica, Universidade Federal do Rio Grande do Sul (UFRGS), P.O. Box 15003, 91501-970, Porto Alegre, RS, Brazil
| | - Helena D. Salles
- Instituto de Química, Departamento de Química Orgânica, Universidade Federal do Rio Grande do Sul (UFRGS), P.O. Box 15003, 91501-970, Porto Alegre, RS, Brazil
| | - Caren D. G. Silva
- Instituto de Química, Departamento de Química Orgânica, Universidade Federal do Rio Grande do Sul (UFRGS), P.O. Box 15003, 91501-970, Porto Alegre, RS, Brazil
| | - Daniel S. Rampon
- Laboratório de Polímeros e Catálise (LAPOCA), Departamento de Química, Universidade Federal do Paraná (UFPR), P.O. Box 19061, 81531-990, Curitiba, PR, Brazil
| | - Paulo H. Schneider
- Instituto de Química, Departamento de Química Orgânica, Universidade Federal do Rio Grande do Sul (UFRGS), P.O. Box 15003, 91501-970, Porto Alegre, RS, Brazil
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5
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Wang S, Yan C, Zhao W, Liu X, Yuan CS, Zhang HL, Shao X. A tellura-Baeyer-Villiger oxidation: one-step transformation of tellurophene into chiral tellurinate lactone. Chem Sci 2021; 12:5811-5817. [PMID: 34168805 PMCID: PMC8179672 DOI: 10.1039/d1sc00397f] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Accepted: 03/08/2021] [Indexed: 01/22/2023] Open
Abstract
Baeyer-Villiger (BV) oxidation is a fundamental organic reaction, whereas the hetero-BV oxidation is uncharted. Herein, a tellura-BV oxidation is discovered. By oxidizing a tellurophene-embedded and electron-rich polycycle (1) with mCPBA or Oxone, an oxygen atom is inserted into the Te-C bond of the tellurophene to form tellurinate lactone mono-2. This reaction proceeds as follows: (i) 1 is oxidized to the tellurophene Te-oxide form (IM-1); (ii) IM-1 undergoes tellura-BV oxidation to give mono-2. Moreover, the hybrid trichalcogenasumanenes 7 and 8 are, respectively, converted to tellurinate lactones mono-9 and mono-10 under the same conditions, indicating that tellura-BV oxidation shows high chemoselectivity. Due to the strong secondary bonding interactions between the Te[double bond, length as m-dash]O groups on tellurinate lactones, mono-2, mono-9, and mono-10 are dimerized to form U-shaped polycycles 2, 9, and 10, respectively. Notably, mono-2, mono-9, mono-10, and their dimers show chirality. This work enables one-step transformation of tellurophene into tellurinate lactone and construction of intricate polycycles.
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Affiliation(s)
- Shitao Wang
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University Tianshui Southern Road 222 Lanzhou 730000 China
| | - Chaoxian Yan
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University Tianshui Southern Road 222 Lanzhou 730000 China
| | - Wenlong Zhao
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University Tianshui Southern Road 222 Lanzhou 730000 China
| | - Xiaolan Liu
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University Tianshui Southern Road 222 Lanzhou 730000 China
| | - Cheng-Shan Yuan
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University Tianshui Southern Road 222 Lanzhou 730000 China
| | - Hao-Li Zhang
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University Tianshui Southern Road 222 Lanzhou 730000 China
| | - Xiangfeng Shao
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University Tianshui Southern Road 222 Lanzhou 730000 China
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6
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Rivard E. Metallacycle Transfer and its Link to Light-Emitting Materials and Conjugated Polymers. CHEM REC 2019; 20:640-648. [PMID: 31833670 DOI: 10.1002/tcr.201900095] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2019] [Revised: 11/26/2019] [Indexed: 02/05/2023]
Abstract
Major advances in optoelectronic technologies (e. g., solar cells, organic light-emitting diodes, etc…) are prefaced by the discovery of new synthetic methodologies. In this review, the key role of the Fagan-Nugent reaction in enabling our team (and others) to gain access to new building blocks for luminescent materials and conjugated polymers bearing p-block elements will be described. The Fagan-Nugent reaction is extremely powerful as a synthetic tool since the efficient zirconium-element atom exchange involved affords a wide range of unsaturated inorganic heterocycles of controllable composition and function.
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Affiliation(s)
- Eric Rivard
- Department of Chemistry, University of Alberta, 11227 Saskatchewan Dr., Edmonton, Alberta, T6G 2G2, Canada
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7
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Jiang M, Guo J, Liu B, Tan Q, Xu B. Synthesis of Tellurium-Containing π-Extended Aromatics with Room-Temperature Phosphorescence. Org Lett 2019; 21:8328-8333. [PMID: 31560555 DOI: 10.1021/acs.orglett.9b03106] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
A synthesis of tellurium-embedded π-extended aromatics from tellurium powder and readily available cyclic diaryliodonium salts has been developed. The versatility of this method has been demonstrated by the synthesis of various functionalized dibenzotellurophenes (DBTe's), a ladder-type π-system, and a heterosumanene. These compounds demonstrated good air/moisture stability and high thermal stability. Remarkably, many DBTe's exhibited interesting tunable room-temperature phosphorescence (RTP) in the solid state.
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Affiliation(s)
- Mengjing Jiang
- Department of Chemistry, Innovative Drug Research Center , Shanghai University , 99 Shangda Road , Shanghai 200444 , China
| | - Jimin Guo
- Department of Chemistry, Innovative Drug Research Center , Shanghai University , 99 Shangda Road , Shanghai 200444 , China
| | - Bingxin Liu
- Department of Chemistry, Innovative Drug Research Center , Shanghai University , 99 Shangda Road , Shanghai 200444 , China
| | - Qitao Tan
- Department of Chemistry, Innovative Drug Research Center , Shanghai University , 99 Shangda Road , Shanghai 200444 , China
| | - Bin Xu
- Department of Chemistry, Innovative Drug Research Center , Shanghai University , 99 Shangda Road , Shanghai 200444 , China.,State Key Laboratory of Organometallic Chemistry , Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences , Shanghai 200032 , China
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8
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Ishii A, Nakata N. Synthesis and Photophysical Property of 1-Chalcogeno-1,3-butadiene Derivatives and the Related Compounds Incorporated in a Dibenzobarrelene Skeleton. J SYN ORG CHEM JPN 2018. [DOI: 10.5059/yukigoseikyokaishi.76.1042] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Akihiko Ishii
- Department of Chemistry, Graduate School of Science and Engineering, Saitama University
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9
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Torres Delgado W, Braun CA, Boone MP, Shynkaruk O, Qi Y, McDonald R, Ferguson MJ, Data P, Almeida SKC, Aguiar ID, de Souza GLC, Brown A, He G, Rivard E. Moving Beyond Boron-Based Substituents To Achieve Phosphorescence in Tellurophenes. ACS APPLIED MATERIALS & INTERFACES 2018; 10:12124-12134. [PMID: 28968055 DOI: 10.1021/acsami.7b11628] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Previous research in our group showed that tellurophenes with pinacolboronate (BPin) units at the 2- and/or 5-positions displayed efficient phosphorescence in the solid state, both in the presence of oxygen and water. In this current study, we show that luminescence from a tellurophene is possible when various aryl-based substituents are present, thus greatly expanding the family of known (and potentially accessible) Te-based phosphors. Moreover, for the green phosphorescent perborylated tellurium heterocycle, 2,3,4,5-TeC4BPin4 (4BTe), oxygen-mediated quenching of phosphorescence is an important contributor to the lack of emission in solution (when exposed to air); thus, this system displays aggregation-enhanced emission (AEE). These discoveries should facilitate the future design of color tunable tellurium-based luminogens.
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Affiliation(s)
- William Torres Delgado
- Department of Chemistry , University of Alberta , 11227 Saskatchewan Drive , Edmonton , Alberta , Canada T6G 2G2
| | - Christina A Braun
- Department of Chemistry , University of Alberta , 11227 Saskatchewan Drive , Edmonton , Alberta , Canada T6G 2G2
| | - Michael P Boone
- Department of Chemistry , University of Alberta , 11227 Saskatchewan Drive , Edmonton , Alberta , Canada T6G 2G2
| | - Olena Shynkaruk
- Department of Chemistry , University of Alberta , 11227 Saskatchewan Drive , Edmonton , Alberta , Canada T6G 2G2
| | - Yanyu Qi
- Center for Materials Chemistry, Frontier Institute of Science and Technology , Xi'an Jiaotong University , Xi'an , Shaanxi 710054 , People's Republic of China
| | - Robert McDonald
- Department of Chemistry , University of Alberta , 11227 Saskatchewan Drive , Edmonton , Alberta , Canada T6G 2G2
| | - Michael J Ferguson
- Department of Chemistry , University of Alberta , 11227 Saskatchewan Drive , Edmonton , Alberta , Canada T6G 2G2
| | - Przemyslaw Data
- Department of Physics , Durham University , Durham , U.K. DH1 3LE
- Faculty of Chemistry , Silesian University of Technology , Strzody 9 , Gliwice , Poland 44-100
| | - Shawan K C Almeida
- Departamento de Química , Universidade Federal de Mato Grosso , Cuiabá , Mato Grosso 78060-900 , Brazil
| | - Inara de Aguiar
- Departamento de Química , Universidade Federal de Mato Grosso , Cuiabá , Mato Grosso 78060-900 , Brazil
| | - Gabriel L C de Souza
- Departamento de Química , Universidade Federal de Mato Grosso , Cuiabá , Mato Grosso 78060-900 , Brazil
| | - Alex Brown
- Department of Chemistry , University of Alberta , 11227 Saskatchewan Drive , Edmonton , Alberta , Canada T6G 2G2
| | - Gang He
- Center for Materials Chemistry, Frontier Institute of Science and Technology , Xi'an Jiaotong University , Xi'an , Shaanxi 710054 , People's Republic of China
| | - Eric Rivard
- Department of Chemistry , University of Alberta , 11227 Saskatchewan Drive , Edmonton , Alberta , Canada T6G 2G2
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10
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Parke SM, Narreto MAB, Hupf E, McDonald R, Ferguson MJ, Hegmann FA, Rivard E. Understanding the Origin of Phosphorescence in Bismoles: A Synthetic and Computational Study. Inorg Chem 2018; 57:7536-7549. [PMID: 29553730 DOI: 10.1021/acs.inorgchem.8b00149] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
A series of bismuth heterocycles, termed bismoles, were synthesized via the efficient metallacycle transfer (Bi/Zr exchange) involving readily accessible zirconacycles. The luminescence properties of three structurally distinct bismoles were explored in detail via time-integrated and time-resolved photoluminescence spectroscopy using ultrafast laser excitation. Moreover, time-dependent density functional theory computations were used to interpret the nature of fluorescence versus phosphorescence in these bismuth-containing heterocycles and to guide the future preparation of luminescent materials containing heavy inorganic elements. Specifically, orbital character at bismuth within excited states is an important factor for achieving enhanced spin-orbit coupling and to promote phosphorescence. The low aromaticity of the bismole rings was demonstrated by formation of a CuCl π-complex, and the nature of the alkene-CuCl interaction was probed by real-space bonding indicators derived from Atoms-In-Molecules, the Electron Localizability Indicator, and the Non-Covalent Interaction index; such tools are of great value in interpreting nonstandard bonding environments within inorganic compounds.
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Affiliation(s)
- Sarah M Parke
- Department of Chemistry , University of Alberta , 11227 Saskatchewan Drive , Edmonton , Alberta T6G 2G2 , Canada
| | - Mary A B Narreto
- Department of Physics , University of Alberta , Edmonton , Alberta T6G 2E1 , Canada
| | - Emanuel Hupf
- Department of Chemistry , University of Alberta , 11227 Saskatchewan Drive , Edmonton , Alberta T6G 2G2 , Canada
| | - Robert McDonald
- Department of Chemistry , University of Alberta , 11227 Saskatchewan Drive , Edmonton , Alberta T6G 2G2 , Canada
| | - Michael J Ferguson
- Department of Chemistry , University of Alberta , 11227 Saskatchewan Drive , Edmonton , Alberta T6G 2G2 , Canada
| | - Frank A Hegmann
- Department of Physics , University of Alberta , Edmonton , Alberta T6G 2E1 , Canada
| | - Eric Rivard
- Department of Chemistry , University of Alberta , 11227 Saskatchewan Drive , Edmonton , Alberta T6G 2G2 , Canada
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11
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Qiu S, Zhang C, Qiu R, Yin G, Huang J. One-Pot Domino Synthesis of Diarylalkynes/1,4-Diaryl-1,3-diynes by [9,9-Dimethyl-4,5-bis(diphenylphosphino)xanthene] (Xantphos)-Copper(I) Iodide-Palladium(II) Acetate-Catalyzed Double Sonogashira-Type Reaction. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201701128] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Shaozhong Qiu
- Hubei Collaborative Innovation Center for Rare Metal Chemistry, Hubei Key Laboratory of Pollutant Analysis and Reuse Technology; Hubei Normal University; Huangshi 435002 People's Republic of China
| | - Caiyang Zhang
- Hubei Collaborative Innovation Center for Rare Metal Chemistry, Hubei Key Laboratory of Pollutant Analysis and Reuse Technology; Hubei Normal University; Huangshi 435002 People's Republic of China
| | - Rui Qiu
- Hubei Collaborative Innovation Center for Rare Metal Chemistry, Hubei Key Laboratory of Pollutant Analysis and Reuse Technology; Hubei Normal University; Huangshi 435002 People's Republic of China
| | - Guodong Yin
- Hubei Collaborative Innovation Center for Rare Metal Chemistry, Hubei Key Laboratory of Pollutant Analysis and Reuse Technology; Hubei Normal University; Huangshi 435002 People's Republic of China
| | - Jinkun Huang
- Xiling Lab; Chengdu 610041 People's Republic of China
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12
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Wu B, Melvina, Wu X, Lee Yeow EK, Yoshikai N. Versatile telluracycle synthesis via the sequential electrophilic telluration of C(sp 2)-Zn and C(sp 2)-H bonds. Chem Sci 2017; 8:4527-4532. [PMID: 28970880 PMCID: PMC5618338 DOI: 10.1039/c7sc01162h] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2017] [Accepted: 04/06/2017] [Indexed: 12/01/2022] Open
Abstract
We report herein a new approach for the synthesis of tellurium-bridged aromatic compounds based on the sequential electrophilic telluration of C(sp2)-Zn and C(sp2)-H bonds with tellurium(iv) chlorides. A combination of transition metal-catalyzed (migratory) arylmetalation of alkynes and sequential telluration allows for the expedient construction of a library of functionalized benzo[b]tellurophenes. Furthermore, a variety of heteroarene-fused benzotellurophenes and other novel tellurium-embedded polycyclic aromatics can be readily synthesized from the corresponding 2-iodoheterobiaryls.
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Affiliation(s)
- Bin Wu
- Division of Chemistry and Biological Chemistry , School of Physical and Mathematical Sciences , Nanyang Technological University , Singapore 637371 , Singapore .
| | - Melvina
- Division of Chemistry and Biological Chemistry , School of Physical and Mathematical Sciences , Nanyang Technological University , Singapore 637371 , Singapore .
| | - Xiangyang Wu
- Division of Chemistry and Biological Chemistry , School of Physical and Mathematical Sciences , Nanyang Technological University , Singapore 637371 , Singapore .
| | - Edwin Kok Lee Yeow
- Division of Chemistry and Biological Chemistry , School of Physical and Mathematical Sciences , Nanyang Technological University , Singapore 637371 , Singapore .
| | - Naohiko Yoshikai
- Division of Chemistry and Biological Chemistry , School of Physical and Mathematical Sciences , Nanyang Technological University , Singapore 637371 , Singapore .
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13
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Carrera EI, Seferos DS. Ring Opening of π-Delocalized 2,5-Diphenyltellurophene by Chemical or Self-Sensitized Aerobic Photooxidation. Organometallics 2017. [DOI: 10.1021/acs.organomet.7b00240] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Elisa I. Carrera
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario M5S 3H6, Canada
| | - Dwight S. Seferos
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario M5S 3H6, Canada
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14
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Kaloni TP, Schreckenbach G, Freund MS. Band gap modulation in polythiophene and polypyrrole-based systems. Sci Rep 2016; 6:36554. [PMID: 27827393 PMCID: PMC5101528 DOI: 10.1038/srep36554] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2016] [Accepted: 10/17/2016] [Indexed: 12/01/2022] Open
Abstract
In this paper, the structural and electronic properties of polythiophene and polyprrrole-based systems have been investigated using first-principles calculations both in periodic and oligomer forms. Of particular interest is the band gap modulation through substitutions and bilayer formation. Specifically, S has been substituted by Se and Te in polythiophene, leading to polyseleophene and polytellurophene, respectively, and N has been substituted by P and As in polypyrrole. The values obtained of the binding energy suggest that all the systems studied can be realized experimentally. Stacking (bilayer formation) of pure polythiophene, polypyrrole and their derivatives leads to linear suppression of the band gap or HOMO-LUMO gap as a function of the stacking. Mixed bilayers, including one formed from polythiophene on top of polypyrrole, have also been considered. Overall, a wide range of band gaps can be achieved through substitutions and stacking. Hybrid (B3LYP) calculations also suggest the same trend in the band gap as PBE calculations. Trends in the binding energy are similar for both periodic and molecular calculations. In addition, Γ-point phonon calculations were performed in order to check the stability of selected systems.
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Affiliation(s)
- Thaneshwor P. Kaloni
- Department of Chemistry, University of Manitoba, Winnipeg, Manitoba R3T 2N2, Canada
| | - Georg Schreckenbach
- Department of Chemistry, University of Manitoba, Winnipeg, Manitoba R3T 2N2, Canada
| | - Michael S. Freund
- Department of Chemistry, Florida Institute of Technology, 150 West University Boulevard, Melbourne, Florida 32901-6975, USA
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15
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Li PF, Carrera EI, Seferos DS. Synthesis of Diphenylchalcogenophene Diboronic Acid Bis(pinacol) Esters and Halogen Photoelimination from Tellurium by Triplet-Triplet Annihilation. Chempluschem 2016; 81:917-921. [DOI: 10.1002/cplu.201600335] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2016] [Revised: 07/27/2016] [Indexed: 11/09/2022]
Affiliation(s)
- Peng-Fei Li
- Department of Chemistry; University of Toronto; 80 St. George Toronto ON M5S 3H6 Canada
| | - Elisa I. Carrera
- Department of Chemistry; University of Toronto; 80 St. George Toronto ON M5S 3H6 Canada
| | - Dwight S. Seferos
- Department of Chemistry; University of Toronto; 80 St. George Toronto ON M5S 3H6 Canada
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16
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Carrera EI, Lanterna AE, Lough AJ, Scaiano JC, Seferos DS. A Mechanistic Study of Halogen Addition and Photoelimination from π-Conjugated Tellurophenes. J Am Chem Soc 2016; 138:2678-89. [PMID: 26853739 DOI: 10.1021/jacs.5b11649] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
The ability to drive reactivity using visible light is of importance for many disciplines of chemistry and has significant implications for sustainable chemistry. Identifying photochemically active compounds and understanding photochemical mechanisms is important for the development of useful materials for synthesis and catalysis. Here we report a series of photoactive diphenyltellurophene compounds bearing electron-withdrawing and electron-donating substituents synthesized by alkyne coupling/ring closing or palladium-catalyzed ipso-arylation chemistry. The redox chemistry of these compounds was studied with respect to oxidative addition and photoelimination of bromine, which is of importance for energy storage reactions involving X2. The oxidative addition reaction mechanism was studied using density functional theory, the results of which support a three-step mechanism involving the formation of an initial η(1) association complex, a monobrominated intermediate, and finally the dibrominated product. All of the tellurophene derivatives undergo photoreduction using 430, 447, or 617 nm light depending on the absorption properties of the compound. Compounds bearing electron-withdrawing substituents have the highest photochemical quantum efficiencies in the presence of an alkene trap, with efficiencies of up to 42.4% for a pentafluorophenyl-functionalized tellurophene. The photoelimination reaction was studied in detail through bromine trapping experiments and laser flash photolysis, and a mechanism is proposed. The photoreaction, which occurs by release of bromine radicals, is competitive with intersystem crossing to the triplet state of the brominated species, as evidenced by the formation of singlet oxygen. These findings should be useful for the design of new photochemically active compounds supported by main-group elements.
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Affiliation(s)
- Elisa I Carrera
- Department of Chemistry, University of Toronto , 80 St. George Street, Toronto, Ontario M5S 3H6, Canada
| | - Anabel E Lanterna
- Department of Chemistry and Centre for Catalysis Research and Innovation, University of Ottawa , 10 Marie Curie, Ottawa, Ontario K1N 6N5, Canada
| | - Alan J Lough
- Department of Chemistry, University of Toronto , 80 St. George Street, Toronto, Ontario M5S 3H6, Canada
| | - Juan C Scaiano
- Department of Chemistry and Centre for Catalysis Research and Innovation, University of Ottawa , 10 Marie Curie, Ottawa, Ontario K1N 6N5, Canada
| | - Dwight S Seferos
- Department of Chemistry, University of Toronto , 80 St. George Street, Toronto, Ontario M5S 3H6, Canada
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17
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Rivard E. Tellurophenes and Their Emergence as Building Blocks for Polymeric and Light-emitting Materials. CHEM LETT 2015. [DOI: 10.1246/cl.150119] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Eric Rivard
- Department of Chemistry, University of Alberta
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18
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Annaka T, Nakata N, Ishii A. Synthesis, Structures, and Temperature-Dependent Photoluminescence of 1,4-Diphenyl-1-telluro-1,3-butadiene Incorporated in a Dibenzobarrelene Skeleton and Derivatives. Organometallics 2015. [DOI: 10.1021/acs.organomet.5b00016] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Tatsuro Annaka
- Department
of Chemistry,
Graduate School of Science and Engineering, Saitama University, 255 Shimo-okubo, Sakura-ku, Saitama 338-8570, Japan
| | - Norio Nakata
- Department
of Chemistry,
Graduate School of Science and Engineering, Saitama University, 255 Shimo-okubo, Sakura-ku, Saitama 338-8570, Japan
| | - Akihiko Ishii
- Department
of Chemistry,
Graduate School of Science and Engineering, Saitama University, 255 Shimo-okubo, Sakura-ku, Saitama 338-8570, Japan
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19
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Tsao FA, Lough AJ, Stephan DW. Intramolecular 1,1-carboboration versus intermolecular FLP addition in reactions of boranes and bis(phenylethynyl)telluroether. Chem Commun (Camb) 2015; 51:4287-9. [DOI: 10.1039/c4cc09258a] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Reactions of boranes with Te(CCPh)2 proceed via initial intermolecular 1,1-carboboration followed by either an intramolecular carboboration or an FLP addition to a second molecule, yielding 1-bora-4-tellurocyclohexa-2,5-diene heterocycles or tricylic derivatives of 1,4-ditellurocyclohexa-2,5-diene, respectively.
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Affiliation(s)
| | | | - Douglas W. Stephan
- Department of Chemistry
- Toronto
- Canada
- Chemistry Department
- Faculty of Science
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20
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Carrera EI, Seferos DS. Semiconducting Polymers Containing Tellurium: Perspectives Toward Obtaining High-Performance Materials. Macromolecules 2014. [DOI: 10.1021/ma502307b] [Citation(s) in RCA: 102] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Elisa I. Carrera
- Department of Chemistry, University of Toronto, 80 St. George
Street, Toronto, Ontario M5S 3H6, Canada
| | - Dwight S. Seferos
- Department of Chemistry, University of Toronto, 80 St. George
Street, Toronto, Ontario M5S 3H6, Canada
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21
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Planells M, Schroeder BC, McCulloch I. Effect of Chalcogen Atom Substitution on the Optoelectronic Properties in Cyclopentadithiophene Polymers. Macromolecules 2014. [DOI: 10.1021/ma5014308] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Miquel Planells
- Department of Chemistry, Imperial College London, London SW7 2AZ, U.K
| | - Bob C. Schroeder
- Department of Chemistry, Imperial College London, London SW7 2AZ, U.K
| | - Iain McCulloch
- Department of Chemistry, Imperial College London, London SW7 2AZ, U.K
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