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Kwon T, Koo JY, Choi HC. Highly Conducting and Flexible Radical Crystals. Angew Chem Int Ed Engl 2020; 59:16436-16439. [PMID: 32539211 DOI: 10.1002/anie.202006263] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Indexed: 11/07/2022]
Abstract
Together with high conductivity, high flexibility is an important property required for next generation organic electronic components. Both properties are difficult to achieve together especially when the components are crystalline because of the intrinsic high brittleness of organic molecular crystals. We report an organic radical crystal system that has both high flexibility and high conductivity. The crystal consists of 9,10-bis(phenylethynyl)anthracene radical cation (BPEA.+ ) units, and shows flexibility under pressure with high conductivity in ambient condition exhibiting average conductivity of 2.68 S cm-1 when normal linear shape, as well as 2.43 S cm-1 when bent. The structural analysis reveals that both a short π-π distance (3.290 Å) between BPEA.+ units that are aligned along the crystal length direction, and the presence of PF6 - counter ions induce flexibility and high electrical conductivity.
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Affiliation(s)
- Taeyeon Kwon
- Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang, 37673, Republic of Korea
| | - Jin Young Koo
- Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang, 37673, Republic of Korea
| | - Hee Cheul Choi
- Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang, 37673, Republic of Korea
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Patil-Deshmukh AB, Mohite SS, Chavan SS. Ruthenium(II)-2, 2′-bipyridine/1, 10-phenanthroline complexes incorporating (E)-2-(((5-((4-methoxyphenyl)ethynyl)pyridin-2-yl)imino)methyl)-4-((4-nitro phenyl)ethynyl)phenol as a ligand. TRANSIT METAL CHEM 2020. [DOI: 10.1007/s11243-020-00384-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Patil-Deshmukh AB, Mohite SS, Chavan SS. Ru(II)-polypyridine complexes with alkynyl Schiff base ligand: influence of π-conjugation, donor/acceptor substituents, and counter anions on electrochemical, luminescence, and catalytic properties. J COORD CHEM 2020. [DOI: 10.1080/00958972.2020.1757663] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
| | - S. S. Mohite
- Department of Chemistry, Shivaji University, Kolhapur, Maharashtra, India
| | - S. S. Chavan
- Department of Chemistry, Shivaji University, Kolhapur, Maharashtra, India
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Yang LP, Li CL, Yao YL, Lin ZJ, Qiao ZP, Chao HY. Mononuclear gold(I) acetylide complexes with carbonyl moiety: Synthesis, characterization, and tunable emission energy. INORG CHEM COMMUN 2020. [DOI: 10.1016/j.inoche.2019.107731] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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6
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Lecourt C, Izumi Y, Khrouz L, Toche F, Chiriac R, Bélanger-Desmarais N, Reber C, Fabelo O, Inoue K, Desroches C, Luneau D. Thermally-induced hysteretic valence tautomeric conversions in the solid state via two-step labile electron transfers in manganese-nitronyl nitroxide 2D-frameworks. Dalton Trans 2020; 49:15646-15662. [PMID: 33156311 DOI: 10.1039/d0dt03243c] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Near room temperature hysteretic thermo-induced valence tautomerism was discovered in a layered 2D-coordination polymer of manganese(ii) with nitronyl nitroxide radicals separated by ClO4- anions (1). This opens a novel approach towards switchable materials with hysteresis and under ambient conditions with prospects for applications and for investigating solid-state intramolecular electron transfers. Herein, two new compounds with similar layered structures where the anions (X) are BF4- (2) or PF6- (3) are presented. Their magnetic behaviors also reveal hysteretic thermo-induced valence tautomeric conversions but in two steps and evidencing a strong effect of the anion. This occurs near room temperature (278-220 K) for 2 and higher for 3 (380-330 K). Their single crystal structures at different temperatures show that this involves two successive thermally-triggered electron transfers with switching between three redox tautomers formulated as {[MnII2-yMnIIIy(NITIm)3-y(NITRed)y]X}n, where y is temperature dependent. Upon cooling from the high-temperature redox-tautomer (y = 0) to the intermediate one (y = 1), half of the manganese(ii) centers are oxidized to manganese(iii) and 1/3 of the nitronyl nitroxide radicals (NITIm-) are reduced to the aminoxyl form (NITRed2-). On further cooling, the second half of the manganese(ii) centers are oxidized and another 1/3 of the radicals are reduced to reach the low-temperature redox-tautomer (y = 2). Upon reheating, reverse electron transfers occur. This is complementarily supported by X-ray powder measurements, differential scanning calorimetry, and electron paramagnetic resonance and Raman spectroscopies. These multi-stable compounds in which manganese ions exchange reversibly their electron with the nitronyl nitroxide radical are outstanding rare examples of two-step valence tautomerism in the solid state promoted by the polymeric structure.
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Affiliation(s)
- Constance Lecourt
- Laboratoire des Multimatériaux et Interfaces, UMR CNRS 5615, Univ Lyon, Université Claude Bernard Lyon 1, F-69622 Villeurbanne, France.
| | - Yuuta Izumi
- Department of Chemistry, Graduate School of Science and Chirality Research Center (CResCent), Hiroshima University, 1-3-1, Kagamiyama, Higashi Hiroshima, Hiroshima, 739-8526, Japan
| | - Lhoussain Khrouz
- Univ Lyon, ENS de Lyon, CNRS UMR 5182, Université Claude Bernard Lyon 1, Laboratoire de Chimie, F69342, Lyon, France
| | - François Toche
- Laboratoire des Multimatériaux et Interfaces, UMR CNRS 5615, Univ Lyon, Université Claude Bernard Lyon 1, F-69622 Villeurbanne, France.
| | - Rodica Chiriac
- Laboratoire des Multimatériaux et Interfaces, UMR CNRS 5615, Univ Lyon, Université Claude Bernard Lyon 1, F-69622 Villeurbanne, France.
| | | | - Christian Reber
- Département de chimie, Université de Montréal, Montréal, Québec H3C 3J7, Canada
| | - Oscar Fabelo
- Institut Laue-Langevin, 71 avenue des Martyrs, 38042 Grenoble Cedex 9, France
| | - Katsuya Inoue
- Department of Chemistry, Graduate School of Science and Chirality Research Center (CResCent), Hiroshima University, 1-3-1, Kagamiyama, Higashi Hiroshima, Hiroshima, 739-8526, Japan
| | - Cédric Desroches
- Laboratoire des Multimatériaux et Interfaces, UMR CNRS 5615, Univ Lyon, Université Claude Bernard Lyon 1, F-69622 Villeurbanne, France.
| | - Dominique Luneau
- Laboratoire des Multimatériaux et Interfaces, UMR CNRS 5615, Univ Lyon, Université Claude Bernard Lyon 1, F-69622 Villeurbanne, France.
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Lolage SR, Pawal SB, Chavan SS. Heterobimetallic Cu(I)/Ru(II) Acetylide Bridged Hybrid Complexes Containing Coordination and Organometallic Sites. ChemistrySelect 2017. [DOI: 10.1002/slct.201701764] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Sanjay R. Lolage
- Synthetic Inorganic Chemistry Laboratory; Department of Chemistry; Shivaji University; Kolhapur, (MS 416 004 India
| | - Sandip B. Pawal
- Synthetic Inorganic Chemistry Laboratory; Department of Chemistry; Shivaji University; Kolhapur, (MS 416 004 India
| | - Sanjay S. Chavan
- Synthetic Inorganic Chemistry Laboratory; Department of Chemistry; Shivaji University; Kolhapur, (MS 416 004 India
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Zhou YP, Wei ZW, Lin ZJ, Ling HT, Guo Z, Zhang M, Lam CK, Ye BH, Chao HY. Diverse binding of important anions in 1-D tricopper anion coordination polymer (ACP) architectures. CrystEngComm 2017. [DOI: 10.1039/c7ce00087a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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