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Fritz PW, Chen T, Ashirov T, Nguyen AD, Dincă M, Coskun A. Fully Conjugated Tetraoxa[8]circulene-Based Porous Semiconducting Polymers. Angew Chem Int Ed Engl 2022; 61:e202116527. [PMID: 35172031 PMCID: PMC9313886 DOI: 10.1002/anie.202116527] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Indexed: 11/09/2022]
Abstract
Tetraoxa[8]circulenes (TOCs) are a class of hetero[8]circulenes featuring a planar cyclooctatetraene core with a mixed aromatic/antiaromatic motif that governs their electronic properties. Polymeric TOCs (pTOCs) have been the subject of several computational simulations because they are predicted to be low-band-gap semiconductors, but they have not been available synthetically yet. Here, we report the first example of pTOCs, a new family of porous semiconductors, synthesized under ionothermal conditions through the intermolecular cyclization of 1,4,5,8-anthracene tetrone. pTOCs are porous, with surface areas up to 1656 m2 g-1 , and exhibit light-switchable and tunable semiconducting properties.
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Affiliation(s)
- Patrick W Fritz
- Department of Chemistry, University of Fribourg, Chemin du Musée 9, 1700, Fribourg, Switzerland
| | - Tianyang Chen
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Ave, Cambridge, MA 02139, USA
| | - Timur Ashirov
- Department of Chemistry, University of Fribourg, Chemin du Musée 9, 1700, Fribourg, Switzerland
| | - Anh-Dao Nguyen
- Department of Chemistry, University of Fribourg, Chemin du Musée 9, 1700, Fribourg, Switzerland
| | - Mircea Dincă
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Ave, Cambridge, MA 02139, USA
| | - Ali Coskun
- Department of Chemistry, University of Fribourg, Chemin du Musée 9, 1700, Fribourg, Switzerland
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Fritz PW, Chen T, Ashirov T, Nguyen A, Dincă M, Coskun A. Fully Conjugated Tetraoxa[8]circulene‐Based Porous Semiconducting Polymers. Angew Chem Int Ed Engl 2022; 61. [DOI: https:/doi.org/10.1002/anie.202116527] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Indexed: 07/03/2024]
Abstract
AbstractTetraoxa[8]circulenes (TOCs) are a class of hetero[8]circulenes featuring a planar cyclooctatetraene core with a mixed aromatic/antiaromatic motif that governs their electronic properties. Polymeric TOCs (pTOCs) have been the subject of several computational simulations because they are predicted to be low‐band‐gap semiconductors, but they have not been available synthetically yet. Here, we report the first example of pTOCs, a new family of porous semiconductors, synthesized under ionothermal conditions through the intermolecular cyclization of 1,4,5,8‐anthracene tetrone. pTOCs are porous, with surface areas up to 1656 m2 g−1, and exhibit light‐switchable and tunable semiconducting properties.
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Affiliation(s)
- Patrick W. Fritz
- Department of Chemistry University of Fribourg Chemin du Musée 9 1700 Fribourg Switzerland
| | - Tianyang Chen
- Department of Chemistry Massachusetts Institute of Technology 77 Massachusetts Ave Cambridge MA 02139 USA
| | - Timur Ashirov
- Department of Chemistry University of Fribourg Chemin du Musée 9 1700 Fribourg Switzerland
| | - Anh‐Dao Nguyen
- Department of Chemistry University of Fribourg Chemin du Musée 9 1700 Fribourg Switzerland
| | - Mircea Dincă
- Department of Chemistry Massachusetts Institute of Technology 77 Massachusetts Ave Cambridge MA 02139 USA
| | - Ali Coskun
- Department of Chemistry University of Fribourg Chemin du Musée 9 1700 Fribourg Switzerland
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3
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Fritz PW, Chen T, Ashirov T, Nguyen A, Dincă M, Coskun A. Fully Conjugated Tetraoxa[8]circulene‐Based Porous Semiconducting Polymers. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202116527] [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)
- Patrick W. Fritz
- Department of Chemistry University of Fribourg Chemin du Musée 9 1700 Fribourg Switzerland
| | - Tianyang Chen
- Department of Chemistry Massachusetts Institute of Technology 77 Massachusetts Ave Cambridge MA 02139 USA
| | - Timur Ashirov
- Department of Chemistry University of Fribourg Chemin du Musée 9 1700 Fribourg Switzerland
| | - Anh‐Dao Nguyen
- Department of Chemistry University of Fribourg Chemin du Musée 9 1700 Fribourg Switzerland
| | - Mircea Dincă
- Department of Chemistry Massachusetts Institute of Technology 77 Massachusetts Ave Cambridge MA 02139 USA
| | - Ali Coskun
- Department of Chemistry University of Fribourg Chemin du Musée 9 1700 Fribourg Switzerland
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4
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Abstract
This review summarizes the results on the aromaticity of a series of synthesized and hypothetical neutral heterocirculene molecules and their double charged ions. The aromaticity of heterocirculenes is a direct reflection of their electronic structure responsible for the specific optoelectronic and photophysical properties. We show how the presence of a heteroatom in the outer macrocycle affects the aromaticity of hetero[8]circulenes. In addition, we also describe the change in aromaticity and strain energy for a series of the “lower” (n < 8) and “higher” (n > 8) hetero[n]circulenes. It was demonstrated that the loss of planarity with increased strain leads to an increased antiaromaticity of the lower hetero[n]circulenes, whereas higher hetero[n]circulenes demonstrate a more pronounced aromatic nature because of the small departure from planarity of each heteroarene ring in hetero[n]circulene molecule. Finally, we discuss the aromatic nature of the first examples of π-extended hetero[8]circulenes.
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Pedersen SK, Pedersen VBR, Kamounah FS, Broløs LM, Baryshnikov GV, Valiev RR, Ivaniuk K, Stakhira P, Minaev B, Karaush-Karmazin N, Ågren H, Pittelkow M. Dianthracenylazatrioxa[8]circulene: Synthesis, Characterization and Application in OLEDs. Chemistry 2021; 27:11609-11617. [PMID: 33899273 DOI: 10.1002/chem.202100090] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2021] [Indexed: 11/11/2022]
Abstract
A soluble, green-blue fluorescent, π-extended azatrioxa[8]circulene was synthesized by oxidative condensation of a 3,6-dihydroxycarbazole and 1,4-anthraquinone by using benzofuran scaffolding. This is the first circulene to incorporate anthracene within its carbon framework. Solvent-dependent fluorescence and bright green electroluminescence accompanied by excimer emission are the key optical properties of this material. The presence of sliding π-stacked columns in the single crystal of dianthracenylazatrioxa[8]circulene is found to cause a very high electron-hopping rate, thus making this material a promising n-type organic semiconductor with an electron mobility predicted to be around 2.26 cm2 V-1 s-1 . The best organic light-emitting diode (OLED) device based on the dianthracenylazatrioxa[8]circulene fluorescent emitter has a brightness of around 16 000 Cd m-2 and an external quantum efficiency of 3.3 %. Quantum dot-based OLEDs were fabricated by using dianthracenylazatrioxa[8]circulene as a host matrix material.
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Affiliation(s)
- Stephan K Pedersen
- Department of Chemistry, University of Copenhagen Universitetsparken 5, 2100, Copenhagen Ø, Denmark
| | - Viktor B R Pedersen
- Department of Chemistry, University of Copenhagen Universitetsparken 5, 2100, Copenhagen Ø, Denmark
| | - Fadhil S Kamounah
- Department of Chemistry, University of Copenhagen Universitetsparken 5, 2100, Copenhagen Ø, Denmark
| | - Line M Broløs
- Department of Chemistry, University of Copenhagen Universitetsparken 5, 2100, Copenhagen Ø, Denmark
| | - Glib V Baryshnikov
- Division of Theoretical Chemistry and Biology, School of Engineering Sciences in Chemistry, Biotechnology and Health KTH Royal Institute of Technology, 10691, Stockholm, Sweden.,Tomsk State University, 36 Lenin Avenue, Tomsk, 634050, Russia
| | - Rashid R Valiev
- Tomsk State University, 36 Lenin Avenue, Tomsk, 634050, Russia.,Department of Chemistry, University of Helsinki, P.O. Box 55 (A.I. Virtanens plats 1), 00014, Helsinki, Finland
| | - Khrystyna Ivaniuk
- Lviv Polytechnic National University S. Bandera 12, 79013, Lviv, Ukraine
| | - Pavlo Stakhira
- Lviv Polytechnic National University S. Bandera 12, 79013, Lviv, Ukraine
| | - Boris Minaev
- Department of Chemistry and Nanomaterials Science, Bohdan Khmelnytsky National University, 18031, Cherkasy, Ukraine
| | - Nataliya Karaush-Karmazin
- Department of Chemistry and Nanomaterials Science, Bohdan Khmelnytsky National University, 18031, Cherkasy, Ukraine
| | - Hans Ågren
- College of Chemistry and Chemical Engineering, Henan University Kaifeng, Henan, 475004, P.R. China.,Department of Physics and Astronomy, Uppsala University, 752 36, Uppsala, Sweden
| | - Michael Pittelkow
- Department of Chemistry, University of Copenhagen Universitetsparken 5, 2100, Copenhagen Ø, Denmark
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Martínez HP, Luna JA, Morales R, Casco JF, Hernández JAD, Luna A, Hernández ZJ, Mendoza G, Monfil K, Ramírez R, Carrillo J, Flores J. Blue Electroluminescence in SRO-HFCVD Films. NANOMATERIALS 2021; 11:nano11040943. [PMID: 33917685 PMCID: PMC8067983 DOI: 10.3390/nano11040943] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Revised: 03/02/2021] [Accepted: 03/17/2021] [Indexed: 01/21/2023]
Abstract
In this work, electroluminescence in Metal-Insulator-Semiconductors (MIS) and Metal-Insulator-Metal (MIM)-type structures was studied. These structures were fabricated with single- and double-layer silicon-rich-oxide (SRO) films by means of Hot Filament Chemical Vapor Deposition (HFCVD), gold and indium tin oxide (ITO) were used on silicon and quartz substrates as a back and front contact, respectively. The thickness, refractive indices, and excess silicon of the SRO films were analyzed. The behavior of the MIS and MIM-type structures and the effects of the pristine current-voltage (I-V) curves with high and low conduction states are presented. The structures exhibit different conduction mechanisms as the Ohmic, Poole–Frenkel, Fowler–Nordheim, and Hopping that contribute to carrier transport in the SRO films. These conduction mechanisms are related to the electroluminescence spectra obtained from the MIS and MIM-like structures with SRO films. The electroluminescence present in these structures has shown bright dots in the low current of 36 uA with a voltage of −20 V to −50 V. However, when applied voltages greater than −67 V with 270 uA, a full area with uniform blue light emission is shown.
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Affiliation(s)
- Haydee P. Martínez
- Departamento de Ingeniería Eléctrica y Electrónica, Tecnológico Nacional de México/Instituto Tecnológico de Apizaco Carretera Apizaco-Tzompantepec, Esquina con Av. Instituto Tecnológico S/N. Conurbado Apizaco-Tzompantepec, Apizaco 90300, Mexico; (H.P.M.); (R.M.); (J.F.C.)
| | - José A. Luna
- Centro de Investigación en Dispositivos Semiconductores (CIDS-ICUAP), Benemérita Universidad Autónoma de Puebla (BUAP), Av. San Claudio y 14 sur, Edif. IC5 C.U., Col. San Manuel, Puebla 72570, Mexico; (J.A.D.H.); (Z.J.H.); (G.M.); (K.M.); (J.C.)
- Correspondence: ; Tel.:+52-22-23-59-00-16
| | - Roberto Morales
- Departamento de Ingeniería Eléctrica y Electrónica, Tecnológico Nacional de México/Instituto Tecnológico de Apizaco Carretera Apizaco-Tzompantepec, Esquina con Av. Instituto Tecnológico S/N. Conurbado Apizaco-Tzompantepec, Apizaco 90300, Mexico; (H.P.M.); (R.M.); (J.F.C.)
| | - José F. Casco
- Departamento de Ingeniería Eléctrica y Electrónica, Tecnológico Nacional de México/Instituto Tecnológico de Apizaco Carretera Apizaco-Tzompantepec, Esquina con Av. Instituto Tecnológico S/N. Conurbado Apizaco-Tzompantepec, Apizaco 90300, Mexico; (H.P.M.); (R.M.); (J.F.C.)
| | - José A. D. Hernández
- Centro de Investigación en Dispositivos Semiconductores (CIDS-ICUAP), Benemérita Universidad Autónoma de Puebla (BUAP), Av. San Claudio y 14 sur, Edif. IC5 C.U., Col. San Manuel, Puebla 72570, Mexico; (J.A.D.H.); (Z.J.H.); (G.M.); (K.M.); (J.C.)
| | - Adan Luna
- Facultad de Ingeniería Química, Benemérita Universidad Autónoma de Puebla (BUAP), Puebla 72570, Mexico;
| | - Zaira J. Hernández
- Centro de Investigación en Dispositivos Semiconductores (CIDS-ICUAP), Benemérita Universidad Autónoma de Puebla (BUAP), Av. San Claudio y 14 sur, Edif. IC5 C.U., Col. San Manuel, Puebla 72570, Mexico; (J.A.D.H.); (Z.J.H.); (G.M.); (K.M.); (J.C.)
| | - Gabriel Mendoza
- Centro de Investigación en Dispositivos Semiconductores (CIDS-ICUAP), Benemérita Universidad Autónoma de Puebla (BUAP), Av. San Claudio y 14 sur, Edif. IC5 C.U., Col. San Manuel, Puebla 72570, Mexico; (J.A.D.H.); (Z.J.H.); (G.M.); (K.M.); (J.C.)
| | - Karim Monfil
- Centro de Investigación en Dispositivos Semiconductores (CIDS-ICUAP), Benemérita Universidad Autónoma de Puebla (BUAP), Av. San Claudio y 14 sur, Edif. IC5 C.U., Col. San Manuel, Puebla 72570, Mexico; (J.A.D.H.); (Z.J.H.); (G.M.); (K.M.); (J.C.)
| | - Raquel Ramírez
- Carrera de Mecatrónica, Universidad Tecnológica de Huejotzingo (UTH), Real San Mateo 36B, Segunda Secc, Santa Ana Xalmimilulco, Puebla 74169, Mexico;
| | - Jesús Carrillo
- Centro de Investigación en Dispositivos Semiconductores (CIDS-ICUAP), Benemérita Universidad Autónoma de Puebla (BUAP), Av. San Claudio y 14 sur, Edif. IC5 C.U., Col. San Manuel, Puebla 72570, Mexico; (J.A.D.H.); (Z.J.H.); (G.M.); (K.M.); (J.C.)
| | - Javier Flores
- Departamento de Ingeniería, Benemérita Universidad Autónoma de Puebla-Ciudad Universitaria, Blvd. Valsequillo y Esquina, Av. San Claudio s/n, Col. San Manuel, Puebla 72570, Mexico;
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Valiev RR, Nasibullin RT, Cherepanov VN, Baryshnikov GV, Sundholm D, Ågren H, Minaev BF, Kurtén T. First-principles calculations of anharmonic and deuteration effects on the photophysical properties of polyacenes and porphyrinoids. Phys Chem Chem Phys 2020; 22:22314-22323. [PMID: 33020794 DOI: 10.1039/d0cp03231j] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new method for calculating internal conversion rate constants (k[combining low line]IC), including anharmonic effects and using the Lagrangian multiplier technique, is proposed. The deuteration effect on k[combining low line]IC is investigated for naphthalene, anthracene, free-base porphyrin (H2P) and tetraphenylporphyrin (H2TPP). The results show that anharmonic effects are important when calculating k[combining low line]IC for transitions between electronic states that are energetically separated (ΔE) by more than 20 000-25 000 cm-1. Anharmonic effects are also important when ΔE < 20 000-25 000 cm-1 and when the accepting modes are X-H stretching vibrations with a frequency larger than 2000 cm-1. The calculations show that there is mixing between the S1 and S2 states of naphthalene induced by non-adiabatic interactions. The non-adiabatic interaction matrix element between the S1 and S2 states is 250 cm-1 and 50 cm-1 for the normal and fully deuterated naphthalene structure and this difference significantly affects the estimated fluorescence quantum yield. Besides aromatic hydrocarbons H2P and H2TPP, the k[combining low line]IC rate constant is also calculated for pyrometene (PM567) and tetraoxa[8]circulene (4B) with a detailed analysis of the effect of the vibrational anharmonicity.
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Affiliation(s)
- R R Valiev
- University of Helsinki, Department of Chemistry, P.O. Box 55, (A.I. Virtanens plats 1), FIN-00014 University of Helsinki, Finland.
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Li J, Han D, Gao J, Chen T, Wang B, Shang X. Theoretical perspective on the electronic structure and photophysical properties for a series of mixed-carbene tris-cyclometalated iridium(iii) complexes. RSC Adv 2020; 10:18519-18525. [PMID: 35517243 PMCID: PMC9053717 DOI: 10.1039/d0ra03444d] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Accepted: 04/28/2020] [Indexed: 01/07/2023] Open
Abstract
The electronic structure and photophysical properties of four mixed-carbene tris-cyclometalated iridium(iii) complexes have been theoretically investigated by the density functional theory (DFT) and time-dependent density functional theory (TDDFT) methods. The effect of varying the main ligand by introducing different ring structures on the photophysical properties of the studied complexes has been explored. All studied complexes have slightly distorted octahedral geometries. The complex with a rigid skeletal structural main ligand possesses the smallest difference between the recombination energy of hole transport and recombination energy of electron transport among these complexes, enhancing the charge transfer balance. The lowest energy emission wavelength calculated is in very good agreement with the available experimental value. This study will provide useful information for the design of new phosphorescent organic light-emitting diode (OLED) materials. The electronic structure and photophysical properties of four tris-cyclometalated iridium(iii) complexes have been theoretically investigated by the density functional theory (DFT) and time-dependent density functional theory (TDDFT) methods.![]()
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Affiliation(s)
- Jiawei Li
- College of Chemistry and Life Science
- Changchun University of Technology
- Changchun 130012
- P. R. China
| | - Deming Han
- School of Life Science and Technology
- Changchun University of Science and Technology
- Changchun 130022
- P. R. China
- Jilin Provincial Science and Technology Innovation Center of Optical Materials and Chemistry
| | - Jing Gao
- College of Chemistry and Life Science
- Changchun University of Technology
- Changchun 130012
- P. R. China
| | - Tong Chen
- College of Chemistry and Life Science
- Changchun University of Technology
- Changchun 130012
- P. R. China
| | - Bao Wang
- College of Chemistry and Life Science
- Changchun University of Technology
- Changchun 130012
- P. R. China
| | - Xiaohong Shang
- College of Chemistry and Life Science
- Changchun University of Technology
- Changchun 130012
- P. R. China
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Valiev R. Competition between the nonadiabatic electronic state-mixing and the Herzberg-Teller vibronic effects in fluorescence process of tetraoxa[8]circulene. Chem Phys Lett 2020. [DOI: 10.1016/j.cplett.2019.136914] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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