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Inoue S, Higashino T, Arai S, Kumai R, Matsui H, Tsuzuki S, Horiuchi S, Hasegawa T. Regioisomeric control of layered crystallinity in solution-processable organic semiconductors. Chem Sci 2020; 11:12493-12505. [PMID: 34976335 PMCID: PMC8647348 DOI: 10.1039/d0sc04461j] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Accepted: 10/16/2020] [Indexed: 11/21/2022] Open
Abstract
The construction and control of 2D layered molecular packing motifs with functionally substituted π-electron cores are crucial for developing organic electronic materials and devices. We investigated a regioisomeric structure–property relationship in high-performance and solution-processable layered organic semiconductors based on mono-octyl-substituted benzothieno[3,2-b]naphtho[2,3-b]thiophene (mono-C8-BTNT). We demonstrated that an isomorphous bilayer-type layered herringbone packing motif is obtainable in a series of four positional isomers of mono-C8-BTNTs whose π-electron core is substituted by an octyl chain at one of the four most peripheral positions with roughly keeping the rod-like molecular shape. These regioisomeric compounds exhibited systematic variations in the solvent solubility and liquid-crystalline phase transitions at elevated temperatures. The analysis of intermolecular interaction energies in the crystals based on dispersion-corrected DFT calculations revealed that the crystals of 2- and 8-mono-C8-BTNTs are more stable than those of 3- and 9-mono-C8-BTNTs owing to the higher ordering of alkyl chain layers in the crystals. Such differences of the stability in their crystal formation are closely correlated with TFT performances, where the single-crystal devices of the 2- and 8-mono-C8-BTNTs substituted at the most peripheral positions exhibit high-performance TFT characteristics with a mobility of approximately 10 cm2 V−1 s−1. An isomorphous bilayer-type layered herringbone crystal packing is reported for a series of four positional isomers of mono-C8-BTNTs, where the single-crystal devices with the isomers exhibit high-performance TFT characteristics.![]()
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Affiliation(s)
- Satoru Inoue
- Department of Applied Physics, The University of Tokyo, 7-3-1 Hongo, Tokyo 113 8656, Japan
| | - Toshiki Higashino
- Research Institute for Advanced Electronics and Photonics (RIAEP), National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki 305-8565, Japan
| | - Shunto Arai
- Department of Applied Physics, The University of Tokyo, 7-3-1 Hongo, Tokyo 113 8656, Japan
| | - Reiji Kumai
- Condensed Matter Research Centre (CMRC) and Photon Factory, Institute of Materials Structure Science, High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
| | - Hiroyuki Matsui
- Research Center for Organic Electronics, Yamagata University, Yonezawa, Yamagata 992-8510, Japan
| | - Seiji Tsuzuki
- Research Center for Computational Design of Advanced Functional Materials (CD-FMat), National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki 305-8568, Japan
| | - Sachio Horiuchi
- Research Institute for Advanced Electronics and Photonics (RIAEP), National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki 305-8565, Japan
| | - Tatsuo Hasegawa
- Department of Applied Physics, The University of Tokyo, 7-3-1 Hongo, Tokyo 113 8656, Japan
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Su H, Du Y, Zhang J, Peng P, Li S, Chen P, Gozin M, Pang S. Stabilizing Metastable Polymorphs of Metal-Organic Frameworks via Encapsulation of Graphene Oxide and Mechanistic Studies. ACS APPLIED MATERIALS & INTERFACES 2018; 10:32828-32837. [PMID: 30160466 DOI: 10.1021/acsami.8b09284] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Polymorphic transition from a metastable phase to a stable phase often occurs in metal-organic frameworks (MOFs) under the action of external stimuli. However, these transitions sometimes result in deteriorating their special performances and can even lead to serious safety problems. Therefore, developing a simple and efficient strategy for enhancing the stabilities of metastable MOF polymorphs is very imperative and meaningful. Herein, we propose a simple graphene oxide (GO)-encapsulating strategy for improving the stabilities of metastable MOF polymorphs. To illustrate this strategy, we designed and synthesized two polymorphic MOFs [MOF(ATA-a) and MOF(ATA-b)] as examples, which are based on energetic 5-amino-1 H-tetrazole as ligands. Single-crystal X-ray diffraction showed that these two polymorphs have a same chemical composition [Zn2(ATA)3(ATA)2/2] n, but different space groups, space systems, and different stacking modes of the neighboring ligands. As expected, the metastable polymorph [MOF(ATA-a)] underwent a complete polymorphic transition at room temperature to form its stable polymorph [MOF(ATA-b)]. Using the proposed strategy, we successfully encapsulated a small amount of GO in the metastable polymorph [GO⊂MOF(ATA-a)]. The resultant composite exhibited better chemical stability, extremely higher thermal stability, and larger Brunauer-Emmett-Teller surface area compared to both its precursor and the physically mixed analogue. Remarkably, its onset decomposition temperature ( Td) was as high as 377.4 °C, which is even higher than that of 1,3,5-triamino-2,4,6-trinitrobenzene ( Td = 321 °C), making it a potential heat-resistant explosive. The mechanism of stabilization was investigated in detail using various analytical techniques. This work may not only provide new insights into the stabilization of functional MOF polymorphs but also open up a new field for the application of GO.
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Affiliation(s)
| | | | | | | | | | | | - Michael Gozin
- School of Chemistry, Faculty of Exact Science , Tel Aviv University , Tel Aviv 69978 , Israel
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Levit R, Barrio M, Veglio N, Tamarit JL, Negrier P, Pardo LC, Sanchez-Marcos J, Mondieig D. From the Two-Component System CBrCl3 + CBr4 to the High-Pressure Properties of CBr4. J Phys Chem B 2008; 112:13916-22. [DOI: 10.1021/jp806180y] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Rafael Levit
- Departament de Física i Enginyeria Nuclear, E.T.S.E.I.B., Universitat Politècnica de Catalunya, Diagonal, 647, 08028 Barcelona, Catalonia, Spain, Centre de Physique Moléculaire, Optique et Hertzienne, UMR 5798 au CNRS-Université Bordeaux I, 351, cours de la Libération, 33405 Talence Cedex, France, Forschungsneutronenquelle Heinz Maier-Leibnitz (FRM II), Technische Universität München, Lichtenbergstraβe 1, D-85747 Garching b. München, Germany, and Institut Laue Langevin, 6 Rue Jules Horowitz, Boîte
| | - Maria Barrio
- Departament de Física i Enginyeria Nuclear, E.T.S.E.I.B., Universitat Politècnica de Catalunya, Diagonal, 647, 08028 Barcelona, Catalonia, Spain, Centre de Physique Moléculaire, Optique et Hertzienne, UMR 5798 au CNRS-Université Bordeaux I, 351, cours de la Libération, 33405 Talence Cedex, France, Forschungsneutronenquelle Heinz Maier-Leibnitz (FRM II), Technische Universität München, Lichtenbergstraβe 1, D-85747 Garching b. München, Germany, and Institut Laue Langevin, 6 Rue Jules Horowitz, Boîte
| | - Nestor Veglio
- Departament de Física i Enginyeria Nuclear, E.T.S.E.I.B., Universitat Politècnica de Catalunya, Diagonal, 647, 08028 Barcelona, Catalonia, Spain, Centre de Physique Moléculaire, Optique et Hertzienne, UMR 5798 au CNRS-Université Bordeaux I, 351, cours de la Libération, 33405 Talence Cedex, France, Forschungsneutronenquelle Heinz Maier-Leibnitz (FRM II), Technische Universität München, Lichtenbergstraβe 1, D-85747 Garching b. München, Germany, and Institut Laue Langevin, 6 Rue Jules Horowitz, Boîte
| | - Josep Ll. Tamarit
- Departament de Física i Enginyeria Nuclear, E.T.S.E.I.B., Universitat Politècnica de Catalunya, Diagonal, 647, 08028 Barcelona, Catalonia, Spain, Centre de Physique Moléculaire, Optique et Hertzienne, UMR 5798 au CNRS-Université Bordeaux I, 351, cours de la Libération, 33405 Talence Cedex, France, Forschungsneutronenquelle Heinz Maier-Leibnitz (FRM II), Technische Universität München, Lichtenbergstraβe 1, D-85747 Garching b. München, Germany, and Institut Laue Langevin, 6 Rue Jules Horowitz, Boîte
| | - Philippe Negrier
- Departament de Física i Enginyeria Nuclear, E.T.S.E.I.B., Universitat Politècnica de Catalunya, Diagonal, 647, 08028 Barcelona, Catalonia, Spain, Centre de Physique Moléculaire, Optique et Hertzienne, UMR 5798 au CNRS-Université Bordeaux I, 351, cours de la Libération, 33405 Talence Cedex, France, Forschungsneutronenquelle Heinz Maier-Leibnitz (FRM II), Technische Universität München, Lichtenbergstraβe 1, D-85747 Garching b. München, Germany, and Institut Laue Langevin, 6 Rue Jules Horowitz, Boîte
| | - Luis C. Pardo
- Departament de Física i Enginyeria Nuclear, E.T.S.E.I.B., Universitat Politècnica de Catalunya, Diagonal, 647, 08028 Barcelona, Catalonia, Spain, Centre de Physique Moléculaire, Optique et Hertzienne, UMR 5798 au CNRS-Université Bordeaux I, 351, cours de la Libération, 33405 Talence Cedex, France, Forschungsneutronenquelle Heinz Maier-Leibnitz (FRM II), Technische Universität München, Lichtenbergstraβe 1, D-85747 Garching b. München, Germany, and Institut Laue Langevin, 6 Rue Jules Horowitz, Boîte
| | - Jorge Sanchez-Marcos
- Departament de Física i Enginyeria Nuclear, E.T.S.E.I.B., Universitat Politècnica de Catalunya, Diagonal, 647, 08028 Barcelona, Catalonia, Spain, Centre de Physique Moléculaire, Optique et Hertzienne, UMR 5798 au CNRS-Université Bordeaux I, 351, cours de la Libération, 33405 Talence Cedex, France, Forschungsneutronenquelle Heinz Maier-Leibnitz (FRM II), Technische Universität München, Lichtenbergstraβe 1, D-85747 Garching b. München, Germany, and Institut Laue Langevin, 6 Rue Jules Horowitz, Boîte
| | - Denise Mondieig
- Departament de Física i Enginyeria Nuclear, E.T.S.E.I.B., Universitat Politècnica de Catalunya, Diagonal, 647, 08028 Barcelona, Catalonia, Spain, Centre de Physique Moléculaire, Optique et Hertzienne, UMR 5798 au CNRS-Université Bordeaux I, 351, cours de la Libération, 33405 Talence Cedex, France, Forschungsneutronenquelle Heinz Maier-Leibnitz (FRM II), Technische Universität München, Lichtenbergstraβe 1, D-85747 Garching b. München, Germany, and Institut Laue Langevin, 6 Rue Jules Horowitz, Boîte
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