1
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Yokoyama S, Utsunomiya S, Seo T, Saeki A, Ie Y. Colorless Near-Infrared Absorbing Dyes Based on B-N Fused Donor-Acceptor-Donor π-Conjugated Molecules for Organic Phototransistors. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024:e2405656. [PMID: 38873872 DOI: 10.1002/advs.202405656] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2024] [Indexed: 06/15/2024]
Abstract
The introduction of a colorless function to organic electronic devices allows responses to light in the near-infrared (NIR) region and is expected to broaden the applications of these devices. However, the development of a colorless NIR dye remains a challenge due to the lack of a rational molecular design for controlling electronic transitions. In this study, to suppress the π-π* transitions in the visible region, polycyclic donor-acceptor-donor π-conjugated molecules with boron bridges (Py-FNTz-B and IP-FNTz-B) are designed and synthesized, which contain pyrrole or indenopyrrole as donor units with fluorinated naphthobisthiadiazole (FNTz) as an acceptor unit. The pyrrole end-capped Py-FNTz-B shows an absorption band in the NIR region without distinct visible-light absorption, which has led to the establishment of colorless characteristics. The indenopyrrole end-capped IP-FNTz-B shows a narrow optical energy gap of 0.87 eV in films. Time-resolved microwave conductance and field-effect transistors demonstrate the semiconducting characteristics of these molecules, and Py-FNTz-B-based devices function as NIR phototransistors. Theoretical analyses indicate that the combination of a polyene-like electronic structure with orbital symmetry is important to obtain NIR wavelength-selective absorption. This study suggests that a molecular design based on electronic structures can be effective in the development of colorless NIR-absorbing dyes for organic electronics.
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Affiliation(s)
- Soichi Yokoyama
- The Institute of Scientific and Industrial Research (SANKEN), Osaka University, 8-1, Mihogaoka, Ibaraki, Osaka, 567-0047, Japan
- Innovative Catalysis Science Division, Institute for Open and Transdisciplinary Research Initiatives (OTRI), Osaka University, 2-1 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Sakura Utsunomiya
- The Institute of Scientific and Industrial Research (SANKEN), Osaka University, 8-1, Mihogaoka, Ibaraki, Osaka, 567-0047, Japan
| | - Takuji Seo
- The Institute of Scientific and Industrial Research (SANKEN), Osaka University, 8-1, Mihogaoka, Ibaraki, Osaka, 567-0047, Japan
| | - Akinori Saeki
- Innovative Catalysis Science Division, Institute for Open and Transdisciplinary Research Initiatives (OTRI), Osaka University, 2-1 Yamadaoka, Suita, Osaka, 565-0871, Japan
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Yutaka Ie
- The Institute of Scientific and Industrial Research (SANKEN), Osaka University, 8-1, Mihogaoka, Ibaraki, Osaka, 567-0047, Japan
- Innovative Catalysis Science Division, Institute for Open and Transdisciplinary Research Initiatives (OTRI), Osaka University, 2-1 Yamadaoka, Suita, Osaka, 565-0871, Japan
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2
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Miller PD, Mengell J, Shultz DA, Kirk ML. Metal-Ligand Exchange Coupling Alters the Open-Shell Ligand Electronic Structure in a Bis(semiquinone) Complex. Inorg Chem 2024; 63:6493-6499. [PMID: 38517353 DOI: 10.1021/acs.inorgchem.4c00380] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/23/2024]
Abstract
The electronic structure of the bis(dioxolene) bridging ligand -SQ2Th2- is responsive to metal-ligand magnetic exchange coupling. Comparison of the crystal structure of (NiSQ)2Th2 to that of (ZnSQ)2Th2 indicates an open-shell biradical ground state for the dinuclear Ni(II) complex compared to the closed-shell quinoidal character found in the dinuclear Zn(II) complex. Consistent with a comparison of bond lengths obtained by X-ray diffraction, the analysis of the variable-temperature magnetic susceptibility data for crystalline (NiSQ)2Th2 yields reduced SQ-SQ radical-radical magnetic exchange coupling (JSQ-SQ = -203 cm-1) compared to that of (ZnSQ)2Th2 (JSQ-SQ = -321 cm-1). The reduced SQ-SQ exchange coupling in (NiSQ)2Th2 derives from an attenuation of the SQ spin densities, which in turn is derived from the Ni-SQ antiferromagnetic exchange interactions. This reduction in SQ--SQ exchange that we observe for (NiSQ)2Th2 correlates with an effective lengthening of the bridge unit by ∼2.1 Å relative to that of (ZnSQ)2Th2. This magnitude of the effective increase in the bridge distance is consistent with the (NiSQ)2Th2 JSQ-SQ value lying between those of (ZnSQ)2Th2 and (ZnSQ)2Th3. The ability to modulate spin populations on an organic radical via pairwise Ni-SQ magnetic exchange interactions is a general way to affect electronic coupling in the Th-Th bridge. Our results suggest that metal-radical exchange coupling represents a powerful mechanism for tuning organic molecular electronic structure, with important implications for molecular electronics and molecular electron transport.
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Affiliation(s)
- Paul D Miller
- Department of Chemistry, North Carolina State University, Raleigh, North Carolina 27695-8204, United States
| | - Joshua Mengell
- Department of Chemistry and Chemical Biology, The University of New Mexico, MSC03 2060, 1 University of New Mexico, Albuquerque, New Mexico 87131-0001, United States
| | - David A Shultz
- Department of Chemistry, North Carolina State University, Raleigh, North Carolina 27695-8204, United States
| | - Martin L Kirk
- Department of Chemistry and Chemical Biology, The University of New Mexico, MSC03 2060, 1 University of New Mexico, Albuquerque, New Mexico 87131-0001, United States
- The Center for High Technology Materials, The University of New Mexico, Albuquerque, New Mexico 87106, United States
- Center for Quantum Information and Control (CQuIC), The University of New Mexico, Albuquerque, New Mexico 87131-0001, United States
- Center for Computational Chemistry, The University of New Mexico, Albuquerque, New Mexico 87131-0001, United States
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3
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Shen L, Gao X, Chang Z, Zhang C, Li Y, Lu J, Meng Q, Wu Q. Sufficient driving force for quinoidal isoindigo-based diradicaloids with tunable diradical characters. Phys Chem Chem Phys 2024; 26:2529-2538. [PMID: 38170813 DOI: 10.1039/d3cp05199d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2024]
Abstract
Stable organic π-conjugated diradcialoids with tunable diradical characters can profoundly affect emerging technology. Over the past years, great efforts have been devoted to studying the structure-diradical character relationship in diradicaloids. Herein, a series of quinoidal isoindigo (IID) compounds with different attached terminal end groups were designed. Detailed analysis focuses on elucidating the driving force for evoking and enhancing the diradical character in the quinoidal IID systems. The arylene units of the IID core and the bridged aromatic units determine the contribution of the open-shell diradical form in the ground state. Diradical character y0 correlates well with bond length alternation (BLA), the total HOMA, and the total NICS(1)zz, and it is tuned by bridged aromatic units and terminal end groups in symmetric systems. The zwitterionic character weakens the diradical character in asymmetric systems to different extents. This work contributes to the deep understanding of evoking and enhancing the diradical character in quinoidal IID-based diradcialoids, providing useful guidelines to produce new molecules with desirable properties.
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Affiliation(s)
- Li Shen
- College of Chemical Engineering and Environmental Chemistry, Weifang University, Weifang, 261061, China.
| | - Xiaobo Gao
- College of Chemical Engineering and Environmental Chemistry, Weifang University, Weifang, 261061, China.
| | - Zhanqing Chang
- College of Chemical Engineering and Environmental Chemistry, Weifang University, Weifang, 261061, China.
| | - Changhao Zhang
- College of Chemical Engineering and Environmental Chemistry, Weifang University, Weifang, 261061, China.
| | - Yue Li
- College of Chemical Engineering and Environmental Chemistry, Weifang University, Weifang, 261061, China.
| | - Jitao Lu
- College of Chemical Engineering and Environmental Chemistry, Weifang University, Weifang, 261061, China.
| | - Qingguo Meng
- College of Chemical Engineering and Environmental Chemistry, Weifang University, Weifang, 261061, China.
| | - Qian Wu
- College of Chemical Engineering and Environmental Chemistry, Weifang University, Weifang, 261061, China.
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4
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Feng Z, Zhou J, He X, Wang B, Xie G, Qiao X, Liu L, Xie Z, Ma Y. Extremely Stable Perylene Bisimide-Bridged Regioisomeric Diradicals and Their Redox Properties. Chemistry 2024; 30:e202302943. [PMID: 37803935 DOI: 10.1002/chem.202302943] [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: 09/11/2023] [Revised: 10/05/2023] [Accepted: 10/06/2023] [Indexed: 10/08/2023]
Abstract
Excellent stability is an essential premise for organic diradicals to be used in organic electronic and spintronic devices. We have attached two tris(2,4,6-trichlorophenyl)methyl (TTM) radical building blocks to the two sides of perylene bisimide (PBI) bridges and obtained two regioisomeric diradicals (1,6-TTM-PBI and 1,7-TTM-PBI). Both of the isomers show super stability rather than the monomeric TTM under ambient conditions, due to the increased conjugation and the electron-withdrawing effects of the PBI bridges. The diradicals show distinct and reversible multistep redox processes, and a spectro-electrochemistry investigation revealed the generation of organic mixed-valence (MV) species during reduction processes. The two diradicals have singlet ground states, very small singlet-triplet energy gaps (ΔES-T ) and a pure open-shell character (with diradical character y0 =0.966 for 1,6-TTM-PBI and 0.967 for 1,7-TTM-PBI). This work opens a window to developing very stable diradicals and offers the opportunity of their further application in optical, electronic and magnetic devices.
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Affiliation(s)
- Zhibin Feng
- Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou, 510640, P. R. China
| | - Jiadong Zhou
- Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou, 510640, P. R. China
| | - Xiandong He
- Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou, 510640, P. R. China
| | - Bohan Wang
- Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou, 510640, P. R. China
| | - Guojing Xie
- Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou, 510640, P. R. China
| | - Xianfeng Qiao
- Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou, 510640, P. R. China
| | - Linlin Liu
- Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou, 510640, P. R. China
| | - Zengqi Xie
- Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou, 510640, P. R. China
| | - Yuguang Ma
- Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou, 510640, P. R. China
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5
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Miller PD, Shultz DA, Mengell J, Kirk ML, Wojtas L. Variation from closed-shell to open shell electronic structures in oligothiophene bis(dioxolene) complexes. Chem Sci 2023; 14:12264-12276. [PMID: 37969598 PMCID: PMC10631215 DOI: 10.1039/d3sc02341a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Accepted: 10/07/2023] [Indexed: 11/17/2023] Open
Abstract
A series of oligothiophene bis(dioxolene) complexes, SQ-Thn-SQ (SQ = S = ½TpCum,MeZnII(3-tert-butyl-orthosemiquinonate); TpCum,Me = tris(5-cumenyl-3-methylpyrazolyl)borate anion) have been synthesized, structurally characterized, and studied as a function of the number of thiophene bridging units, n (n = 0-3) using a combination of variable-temperature (VT) electronic absorption and EPR spectroscopies, and VT magnetic susceptibility measurements. The thiophene bridge bond lengths determined by X-ray crystallography display dramatic differences across the SQ-Thn-SQ series. Bridge bond deviation values (Σ|Δi|) display a progressive change in the nature of the bridge fragment bonding as the number of thiophene groups increases, with quinoidal bridge character for n = 1 (SQ-Th-SQ) and biradical character with "aromatic" bridge bond lengths for n = 3 (SQ-Th3-SQ). Remarkably, for n = 2 (SQ-Th2-SQ) the nature of the bridge fragment is intermediate between quinoid and biradical aromatic, which we describe as having open-shell character as opposed to biradicaloid since the open-shell biradical configuration does not have the correct symmetry to mix with the quinoidal ground-state configuration. This bridge bonding character is reflected in the energies of the lowest lying open-shell states for these three molecules. The SQ-Th-SQ molecule is diamagnetic at all temperatures studied, and we provide evidence for SQ-SQ antiferromagnetic exchange coupling and population of triplet states in SQ-Th2-SQ and SQ-Th3-SQ, with JSQ-SQ(ave) = -279 cm-1 (VT EPR/electronic absorption/magnetic susceptibility) and JSQ-SQ = -117 cm-1 (VT EPR/electronic absorption/magnetic susceptibility), respectively. The results have been interpreted in the context of state configurational mixing within a simplified 4-electron, 3-orbital model that explicitly contains contributions of a bridge fragment. Variable-temperature spectroscopic- and magnetic susceptibility data are consistent with two low-lying open-shell states for SQ-Th3-SQ, but three low-lying states (one closed-shell and two open-shell) for SQ-Th2-SQ. This model provides a simple symmetry-based framework to understand the continuum of electronic and geometric structures of this class of molecules as a function of the number of thiophene units in the bridge.
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Affiliation(s)
- Paul D Miller
- Department of Chemistry, North Carolina State University Raleigh North Carolina 27695-8204 USA
| | - David A Shultz
- Department of Chemistry, North Carolina State University Raleigh North Carolina 27695-8204 USA
| | - Joshua Mengell
- Department of Chemistry and Chemical Biology, The University of New Mexico MSC03 2060, 1 University of New Mexico Albuquerque NM 87131-0001 USA
| | - Martin L Kirk
- Department of Chemistry and Chemical Biology, The University of New Mexico MSC03 2060, 1 University of New Mexico Albuquerque NM 87131-0001 USA
- The Center for High Technology Materials, The University of New Mexico Albuquerque New Mexico 87106 USA
- Center for Quantum Information and Control (CQuIC), The University of New Mexico Albuquerque New Mexico 87131-0001 USA
| | - Lukasz Wojtas
- Department of Chemistry, University of South Florida 4202 E. Fowler Avenue, CHE 205 Tampa FL 33620-5250 USA
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6
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Recent Advances of Stable Phenoxyl Diradicals. Chem Res Chin Univ 2023. [DOI: 10.1007/s40242-023-3012-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/14/2023]
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7
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Humphreys J, Malagreca F, Hume PA, Davies ES, Argent SP, Bradshaw TD, Amabilino DB. Highly electron deficient diketopyrrolopyrroles. Chem Commun (Camb) 2023; 59:1613-1616. [PMID: 36632697 DOI: 10.1039/d2cc06770f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
The synthesis, spectroelectrochemical and structural characteristics of highly electron-accepting diketopyrrrolopyrrole (DPP) molecules with adjoining pyridinium rings is reported, along with an assessment of their toxicity, which is apparently low. The compounds show reversible electrochemistry and in one subfamily a massive increase in molar extinction coefficient upon electrochemical reduction.
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Affiliation(s)
- Joshua Humphreys
- GSK Carbon Neutral Laboratories for Sustainable Chemistry, School of Chemistry, University of Nottingham, Triumph Road, Nottingham, NG7 2TU, UK
| | - Ferdinando Malagreca
- GSK Carbon Neutral Laboratories for Sustainable Chemistry, School of Chemistry, University of Nottingham, Triumph Road, Nottingham, NG7 2TU, UK.,School of Pharmacy, University of Nottingham, University Park, NG7 2RD, UK
| | - Paul A Hume
- MacDiarmid Institute for Advanced Materials and Nanotechnology and School of Chemical and Physical Sciences, Victoria University of Wellington, Wellington 6010, New Zealand
| | - E Stephen Davies
- School of Chemistry, University of Nottingham, University Park, NG7 2RD, UK
| | - Stephen P Argent
- School of Chemistry, University of Nottingham, University Park, NG7 2RD, UK
| | - Tracey D Bradshaw
- School of Pharmacy, University of Nottingham, University Park, NG7 2RD, UK
| | - David B Amabilino
- GSK Carbon Neutral Laboratories for Sustainable Chemistry, School of Chemistry, University of Nottingham, Triumph Road, Nottingham, NG7 2TU, UK.,Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), Consejo Superior de Investigaciones Científicas, Campus Universitari de Bellaterra, Cerdanyola del Vallès 08193, Spain.
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8
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Harimoto T, Suzuki T, Ishigaki Y. Enhancement of NIR-Absorbing Ability of Bis(diarylmethylium)-Type Dicationic Dyes Based on an Ortho-Substitution Strategy. Chemistry 2023; 29:e202203899. [PMID: 36637412 DOI: 10.1002/chem.202203899] [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: 12/13/2022] [Revised: 01/13/2023] [Accepted: 01/13/2023] [Indexed: 01/14/2023]
Abstract
Electrochromic systems capable of switching near-infrared (NIR) absorption are fascinating from the viewpoint of applications in the materials and life sciences. Although 11,11,12,12-tetraaryl-9,10-anthraquinodimethanes (AQDs) with a folded form undergo one-stage two-electron oxidation to produce twisted dicationic dyes exhibiting NIR absorption, there is a need to establish a design strategy that can enhance the NIR-absorbing abilities of the corresponding dicationic dyes. In this study, we designed and synthesized a series of AQD derivatives with various substituents introduced at the ortho-position(s) of the 4-methoxyphenyl group. X-ray and spectroscopic analyses revealed that NIR-absorbing properties can be changed by introduction of the ortho-substituents. Thus, control of the steric and electronic effects of the ortho-substituents on the 4-methoxyphenyl groups was demonstrated to be an effective strategy for fine-tuning of the HOMO and LUMO levels for neutral AQDs and twisted dications, respectively, resulting in the modification of electrochemical and spectroscopic properties under an "ortho-substitution strategy".
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Affiliation(s)
- Takashi Harimoto
- Department of Chemistry, Faculty of Science, Hokkaido University, N10 W8, North-ward, Sapporo, 060-0810, Japan
| | - Takanori Suzuki
- Department of Chemistry, Faculty of Science, Hokkaido University, N10 W8, North-ward, Sapporo, 060-0810, Japan
| | - Yusuke Ishigaki
- Department of Chemistry, Faculty of Science, Hokkaido University, N10 W8, North-ward, Sapporo, 060-0810, Japan
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9
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Barker JE, Price TW, Karas LJ, Kishi R, MacMillan SN, Zakharov LN, Gómez-García CJ, Wu JI, Nakano M, Haley MM. A Tale of Two Isomers: Enhanced Antiaromaticity/Diradical Character versus Deleterious Ring-Opening of Benzofuran-fused s-Indacenes and Dicyclopenta[b,g]naphthalenes. Angew Chem Int Ed Engl 2021; 60:22385-22392. [PMID: 34383986 DOI: 10.1002/anie.202107855] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2021] [Indexed: 11/05/2022]
Abstract
We examine the effects of fusing two benzofurans to s-indacene (indacenodibenzofurans, IDBFs) and dicyclopenta[b,g]naphthalene (indenoindenodibenzofurans, IIDBFs) to control the strong antiaromaticity and diradical character of these core units. Synthesis via 3-functionalized benzofuran yields syn-IDBF and syn-IIDBF. syn-IDBF possesses a high degree of paratropicity, exceeding that of the parent hydrocarbon, which in turn results in strong diradical character for syn-IIDBF. In the case of the anti-isomers, synthesized via 2-substituted benzofurans, these effects are decreased; however, both derivatives undergo an unexpected ring-opening reaction during the final dearomatization step. All the results are compared to the benzothiophene-fused analogues and show that the increased electronegativity of oxygen in the syn-fused derivatives leads to enhancement of the antiaromatic core causing greater paratropicity. For syn-IIDBF increased diradical character results from rearomati-zation of the core naphthalene unit in order to relieve this paratropicity.
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Affiliation(s)
- Joshua E Barker
- Department of Chemistry and Biochemistry and the Materials Science Institute, University of Oregon, Eugene, Oregon, 97403-1253, USA
| | - Tavis W Price
- Department of Chemistry and Biochemistry and the Materials Science Institute, University of Oregon, Eugene, Oregon, 97403-1253, USA
| | - Lucas J Karas
- Department of Chemistry, University of Houston, Houston, Texas, 77204, USA
| | - Ryohei Kishi
- Department of Materials Engineering Science, Graduate School of Engineering Science and Center for Quantum Information and Quantum Biology, International Advanced Research Institute (QIQB-IARI), Osaka University, Toyonaka, Osaka, 560-8531, Japan.,Division of Quantum Photochemical Engineering, Research Center for Solar Energy Chemistry (RCSEC), Graduate School of Engineering Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka, 560-0043, Japan
| | - Samantha N MacMillan
- Department of Chemistry & Chemical Biology, Cornell University, Ithaca, New York, 14853, USA
| | - Lev N Zakharov
- Center for Advanced Materials Characterization at Oregon (CAMCOR), University of Oregon, Eugene, Oregon, 97403-1433, USA
| | - Carlos J Gómez-García
- Department of Inorganic Chemistry and Instituto de Ciencia Molecular, Universidad de Valencia, 46980, Paterna, Spain
| | - Judy I Wu
- Department of Chemistry, University of Houston, Houston, Texas, 77204, USA
| | - Masayoshi Nakano
- Department of Materials Engineering Science, Graduate School of Engineering Science and Center for Quantum Information and Quantum Biology, International Advanced Research Institute (QIQB-IARI), Osaka University, Toyonaka, Osaka, 560-8531, Japan.,Division of Quantum Photochemical Engineering, Research Center for Solar Energy Chemistry (RCSEC), Graduate School of Engineering Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka, 560-0043, Japan.,Innovative Catalysis Science Division, Institute for Open and Transdisciplinary Research Initiatives (ICS-OTRI), Osaka University, Suita, Osaka, 565-0871, Japan.,Center for Spintronics Research Network (CSRN), Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka, 560-8531, Japan
| | - Michael M Haley
- Department of Chemistry and Biochemistry and the Materials Science Institute, University of Oregon, Eugene, Oregon, 97403-1253, USA
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10
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Barker JE, Price TW, Karas LJ, Kishi R, MacMillan SN, Zakharov LN, Gómez‐García CJ, Wu JI, Nakano M, Haley MM. A Tale of Two Isomers: Enhanced Antiaromaticity/Diradical Character versus Deleterious Ring‐Opening of Benzofuran‐fused
s
‐Indacenes and Dicyclopenta[
b
,
g
]naphthalenes. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202107855] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Joshua E. Barker
- Department of Chemistry and Biochemistry and the Materials Science Institute University of Oregon Eugene Oregon 97403-1253 USA
| | - Tavis W. Price
- Department of Chemistry and Biochemistry and the Materials Science Institute University of Oregon Eugene Oregon 97403-1253 USA
| | - Lucas J. Karas
- Department of Chemistry University of Houston Houston Texas 77204 USA
| | - Ryohei Kishi
- Department of Materials Engineering Science Graduate School of Engineering Science and Center for Quantum Information and Quantum Biology International Advanced Research Institute (QIQB-IARI) Osaka University Toyonaka Osaka 560-8531 Japan
- Division of Quantum Photochemical Engineering Research Center for Solar Energy Chemistry (RCSEC) Graduate School of Engineering Science Osaka University 1-1 Machikaneyama, Toyonaka Osaka 560-0043 Japan
| | - Samantha N. MacMillan
- Department of Chemistry & Chemical Biology Cornell University Ithaca New York 14853 USA
| | - Lev N. Zakharov
- Center for Advanced Materials Characterization at Oregon (CAMCOR) University of Oregon Eugene Oregon 97403-1433 USA
| | - Carlos J. Gómez‐García
- Department of Inorganic Chemistry and Instituto de Ciencia Molecular Universidad de Valencia 46980 Paterna Spain
| | - Judy I. Wu
- Department of Chemistry University of Houston Houston Texas 77204 USA
| | - Masayoshi Nakano
- Department of Materials Engineering Science Graduate School of Engineering Science and Center for Quantum Information and Quantum Biology International Advanced Research Institute (QIQB-IARI) Osaka University Toyonaka Osaka 560-8531 Japan
- Division of Quantum Photochemical Engineering Research Center for Solar Energy Chemistry (RCSEC) Graduate School of Engineering Science Osaka University 1-1 Machikaneyama, Toyonaka Osaka 560-0043 Japan
- Innovative Catalysis Science Division Institute for Open and Transdisciplinary Research Initiatives (ICS-OTRI) Osaka University Suita, Osaka 565-0871 Japan
- Center for Spintronics Research Network (CSRN) Graduate School of Engineering Science Osaka University Toyonaka, Osaka 560-8531 Japan
| | - Michael M. Haley
- Department of Chemistry and Biochemistry and the Materials Science Institute University of Oregon Eugene Oregon 97403-1253 USA
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11
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Nishijima M, Mutoh K, Abe J. A Qualitative Measure of Diradical Character Based on Radical–Radical Coupling Reaction. CHEM LETT 2021. [DOI: 10.1246/cl.210267] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Moe Nishijima
- Department of Chemistry, Aoyama Gakuin University, Sagamihara, Kanagawa 252-5258, Japan
| | - Katsuya Mutoh
- Department of Chemistry, Aoyama Gakuin University, Sagamihara, Kanagawa 252-5258, Japan
| | - Jiro Abe
- Department of Chemistry, Aoyama Gakuin University, Sagamihara, Kanagawa 252-5258, Japan
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12
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Fang Y, Sun Q, Chen X, Qiu Y, Chen C, Wang L, Zhao Y, Su Y, Li T, Zhang L, Wang X. Rational design and syntheses of aniline-based diradical dications: isolable congeners of quinodimethane diradicals. Org Chem Front 2021. [DOI: 10.1039/d0qo01265c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Two-electron oxidation of five aniline-based compounds 4,4′′-p/m-terphenyldiamines afforded the first isolable aniline-based diradical dications 12+–52+.
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13
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Pascal S, David S, Andraud C, Maury O. Near-infrared dyes for two-photon absorption in the short-wavelength infrared: strategies towards optical power limiting. Chem Soc Rev 2021; 50:6613-6658. [DOI: 10.1039/d0cs01221a] [Citation(s) in RCA: 42] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The recent advances in the field of two-photon absorbing chromophores in the short-wavelength infrared spectral range (SWIR 1100–2500 nm) are summarized, highlighting the development of optical power limiting devices in this spectral range.
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Affiliation(s)
- Simon Pascal
- Univ. Lyon
- ENS Lyon
- CNRS UMR 5182
- Laboratoire de Chimie
- 69364 Lyon
| | - Sylvain David
- Univ. Lyon
- ENS Lyon
- CNRS UMR 5182
- Laboratoire de Chimie
- 69364 Lyon
| | - Chantal Andraud
- Univ. Lyon
- ENS Lyon
- CNRS UMR 5182
- Laboratoire de Chimie
- 69364 Lyon
| | - Olivier Maury
- Univ. Lyon
- ENS Lyon
- CNRS UMR 5182
- Laboratoire de Chimie
- 69364 Lyon
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