1
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Kong S, Yang L, Sun Q, Wang T, Pei R, Zhao Y, Wang W, Zhao Y, Cui H, Gu X, Wang X. Metal-Free Catalytic Formation of a Donor-Acceptor-Donor Molecule and Its Lewis Acid-Adduct Singlet Diradical with High-Efficient NIR-II Photothermal Conversion. Angew Chem Int Ed Engl 2024; 63:e202400913. [PMID: 38441914 DOI: 10.1002/anie.202400913] [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: 01/15/2024] [Indexed: 04/05/2024]
Abstract
We have synthesized a quinone-incorporated bistriarylamine donor-acceptor-donor (D-A-D) semiconductor 1 by B(C6F5)3 (BCF) catalyzed C-H/C-H cross coupling via radical ion pair intermediates. Coordination of Lewis acids BCF and Al(ORF)3 (RF=C(CF3)3) to the semiconductor 1 afforded diradical zwitterions 2 and 3 by integer electron transfer. Upon binding to Lewis acids, the LUMO energy of 1 is significantly lowered and the band gap of the semiconductor is significantly narrowed from 1.93 eV (1) to 1.01 eV (2) and 1.06 eV (3). 2 and 3 are rare near-infrared (NIR) diradical dyes with broad absorption both centered around 1500 nm. By introducing a photo BCF generator, 2 can be generated by light-dependent control. Furthermore, the integer electron transfer process can also be reversibly regulated via the addition of CH3CN. In addition, the temperature of 2 sharply increased and reached as high as 110 °C in 10 s upon the irradiation of near-infrared-II (NIR-II) laser (1064 nm, 0.7 W cm-2), exhibiting a fast response to laser. It displays excellent photothermal stability with a photothermal (PT) conversion efficiency of 62.26 % and high-quality PT imaging.
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Affiliation(s)
- Shanshan Kong
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210023, China
| | - Liming Yang
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Quanchun Sun
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210023, China
| | - Tao Wang
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210023, China
| | - Runbo Pei
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210023, China
| | - Yue Zhao
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210023, China
| | - Wenqing Wang
- College of Chemistry and Materials Science, Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Moleculer-Based Materials, Anhui Normal University, Wuhu, 241002, China
| | - Yu Zhao
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210023, China
| | - Haiyan Cui
- Jiangsu Key Laboratory of Pesticide Science, College of Sciences, Nanjing Agricultural University, Nanjing, 210095, China
| | - Xinggui Gu
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Xinping Wang
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210023, China
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Science, Shanghai, 200032, China
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2
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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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3
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Ishigaki Y, Harimoto T, Shimajiri T, Suzuki T. Carbon-based Biradicals: Structural and Magnetic Switching. Chem Rev 2023; 123:13952-13965. [PMID: 37948658 DOI: 10.1021/acs.chemrev.3c00376] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2023]
Abstract
Sterically hindered C═C double bonds often deform into a bent or twisted geometry. Thus, many overcrowded ethylenes or anthraquinodimethanes can adopt multiple conformations, such as a folded form or a twisted form, which are interconvertible under the application of external stimuli. A perpendicular form with biradical character can also be adopted when designed to incorporate a stable carbon-based radical unit, which is involved in stimuli-responsive magnetic switching accompanied by a structural change. This review focuses on recent advances in the development of such strained π-electron systems and reveals the factors that affect the mutual interconversion and switching behavior. The energy barrier for the interconversion of conformational isomers is affected by the tricyclic skeleton or bulky substituents on the C═C double bonds, whereas the relative stability of the perpendicular biradical form increases with the additional insertion of 9,10-anthrylene units into the C═C double bonds.
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Affiliation(s)
- Yusuke Ishigaki
- Department of Chemistry, Faculty of Science, Hokkaido University, Sapporo 060-0810, Japan
| | - Takashi Harimoto
- Department of Chemistry, Faculty of Science, Hokkaido University, Sapporo 060-0810, Japan
| | - Takuya Shimajiri
- Department of Chemistry, Faculty of Science, Hokkaido University, Sapporo 060-0810, Japan
- Creative Research Institution, Hokkaido University, Sapporo 001-0021, Japan
| | - Takanori Suzuki
- Department of Chemistry, Faculty of Science, Hokkaido University, Sapporo 060-0810, Japan
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4
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Abdurahman A, Shen L, Wang J, Niu M, Li P, Peng Q, Wang J, Lu G. A highly efficient open-shell singlet luminescent diradical with strong magnetoluminescence properties. LIGHT, SCIENCE & APPLICATIONS 2023; 12:272. [PMID: 37963871 PMCID: PMC10645991 DOI: 10.1038/s41377-023-01314-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Revised: 10/14/2023] [Accepted: 10/23/2023] [Indexed: 11/16/2023]
Abstract
Developing open-shell singlet (OS) diradicals with high luminescent properties and exceptional single-molecule magnetoluminescence (ML) performance is extremely challenging. Herein, we propose a concept to enhance luminescent efficiency by adjusting the donor conjugation of OS diradicals, thereby achieving a highly luminescent diradical, DR1, with outstanding stability and making it a viable option for use in the emitting layer of organic light-emitting diodes (OLEDs). More importantly, the 0.5 wt%-DR1 doped film demonstrates significant single-molecule magnetoluminescence (ML) properties. A giant ML value of 210% is achieved at a magnetic field of 7 T, showing the great potential of DR1 in magneto-optoelectronic devices.
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Affiliation(s)
- Alim Abdurahman
- State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Qianjin Avenue 2699, Changchun, 130012, China.
| | - Li Shen
- College of Chemical Engineering and Environmental Chemistry, Weifang University, Weifang, 261061, China
| | - Jingmin Wang
- Key Laboratory of Flexible Electronics (KLOFE), Institute of Advanced Materials (IAM) & School of Flexible Electronics (Future Technologies), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing, 211816, China
| | - Meiling Niu
- Key Laboratory of Flexible Electronics (KLOFE), Institute of Advanced Materials (IAM) & School of Flexible Electronics (Future Technologies), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing, 211816, China
| | - Ping Li
- Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials (IAM) National Synergistic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts & Telecommunications, 9 Wenyuan Road, Nanjing, 210023, China
| | - Qiming Peng
- Key Laboratory of Flexible Electronics (KLOFE), Institute of Advanced Materials (IAM) & School of Flexible Electronics (Future Technologies), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing, 211816, China.
| | - Jianpu Wang
- Key Laboratory of Flexible Electronics (KLOFE), Institute of Advanced Materials (IAM) & School of Flexible Electronics (Future Technologies), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing, 211816, China
| | - Geyu Lu
- State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Qianjin Avenue 2699, Changchun, 130012, China.
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5
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Miao F, Ji Y, Han B, Quintero SM, Chen H, Xue G, Cai L, Casado J, Zheng Y. Asymmetric and zwitterionic Blatter diradicals. Chem Sci 2023; 14:2698-2705. [PMID: 36908964 PMCID: PMC9993846 DOI: 10.1039/d3sc00367a] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Accepted: 02/01/2023] [Indexed: 02/23/2023] Open
Abstract
Asymmetric diradical molecular systems with different resonance mechanisms are largely unexplored. Herein, two conjugated asymmetric diradicals with Blatter and phenoxyl moieties (pBP and mBP) have been synthesized and studied in depth. A complete set of spectroscopic, X-ray crystallographic and magnetic techniques, together with quantum chemical calculations, have been used. The para-isomer (pBP) bears diradical and zwitterionic resonant forms, the latter by a electron delocalization mechanism, which are synergistically integrated by a sequence of nitrogen, provided by the Blatter moiety imine and amine (of different acceptor nature). In the meta-isomer (mBP), the zwitterionic form promoted in pBP by the lone-pair electron of the amine nitrogen is not available, yet it possesses a pseudo-hyperconjugation effect where the N lone pair mediates in a bonding coupling in a counter homolytic bond scission mechanism. Both electronic effects converge to promote medium diradical characters and narrow singlet-triplet gaps to the two electronic isomers. All these aspects delineate the subtle balance that shapes the electronic structure of open-shell molecules, which is even more challenging in the case of asymmetric systems, such as those described here with asymmetric phenoxyl-Blatter diradicals.
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Affiliation(s)
- Fang Miao
- Department of Pharmacy, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China Chengdu 610072 People's Republic of China .,Institute of Electronic and Information Engineering of UESTC in Guangdong Zongbu Second Road No. 17 Dongguan Guangdong 523808 People's Republic of China
| | - Yu Ji
- Department of Pharmacy, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China Chengdu 610072 People's Republic of China .,School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China Chengdu 610054 People's Republic of China
| | - Bo Han
- Chengdu University of Traditional Chinese Medicine State Key Laboratory Southwestern Chinese Medicine Resources Chengdu 611137 People's Republic of China
| | - Sergio Moles Quintero
- Department of Physical Chemistry, University of Málaga, Campus de Teatinos s/n Málaga 29071 Spain
| | - Hanjiao Chen
- Analytical & Testing Center, Sichuan University Chengdu 610064 People's Republic of China
| | - Guodong Xue
- School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China Chengdu 610054 People's Republic of China
| | - Lulu Cai
- Department of Pharmacy, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China Chengdu 610072 People's Republic of China
| | - Juan Casado
- Department of Physical Chemistry, University of Málaga, Campus de Teatinos s/n Málaga 29071 Spain
| | - Yonghao Zheng
- Department of Pharmacy, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China Chengdu 610072 People's Republic of China .,School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China Chengdu 610054 People's Republic of China
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6
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Guo J, Li Z, Tian X, Zhang T, Wang Y, Dou C. Diradical B/N-Doped Polycyclic Hydrocarbons. Angew Chem Int Ed Engl 2023; 62:e202217470. [PMID: 36599802 DOI: 10.1002/anie.202217470] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2022] [Revised: 01/04/2023] [Accepted: 01/04/2023] [Indexed: 01/06/2023]
Abstract
Heterocyclic diradicaloids with atom-precise control over open-shell nature are promising materials for organic electronics and spintronics. Herein, we disclose quinoidal π-extension of a B/N-heterocycle for generating B/N-type organic diradicaloids. Two quinoidal π-extended B/N-doped polycyclic hydrocarbons that feature fusion of the B/N-heterocycle motif with the antiaromatic s-indacene or dicyclopenta[b,g]naphthalene core were synthesized. This quinoidal π-extension and B/N-heterocycle leads to their open-shell electronic nature, which stands in contrast to the multiple-resonance effect of conventional B/N-type emitters. These B/N-type diradicaloids have modulated (anti)aromaticity and enhanced diradical characters comparing with the all-carbon analogues, as well as intriguing properties, such as magnetic activities, narrow energy gaps and highly red-shifted absorptions. This study thus opens the new space for both of B/N-doped polycyclic π-systems and heterocyclic diradicaloids.
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Affiliation(s)
- Jiaxiang Guo
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun, 130012, P. R. China
| | - Zeyi Li
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun, 130012, P. R. China
| | - Xinyu Tian
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun, 130012, P. R. China
| | - Tianyu Zhang
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun, 130012, P. R. China
| | - Yue Wang
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun, 130012, P. R. China
| | - Chuandong Dou
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun, 130012, P. R. China.,Jiangsu Engineering Laboratory of Novel Functional Polymeric Materials, Soochow University, Suzhou, 215123, P. R. China
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7
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Liu G, Zhang W, Xiao Y, Cao J, Liang Y, Liu G, Zhou L, Gong J, Wang J, Wang Q. Dimerized Nitrogen-Annulated Perylene Synthesized from 1,6-Diazecine as Chiral Emitter. Chemistry 2023; 29:e202203550. [PMID: 36720699 DOI: 10.1002/chem.202203550] [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: 11/15/2022] [Revised: 01/13/2023] [Accepted: 01/30/2023] [Indexed: 02/02/2023]
Abstract
In this work, nitrogen-annulated perylene (NP) was dimerized into one framework connected by two nitrogen atoms, generating the target molecule of DNP-DA. Owing to the substructure of 1,6-diazecine ten-membered ring, DNP-DA illustrates helical chirality with moderate dissymmetry factor, elevated molecular levels, expanded conjugation and supramolecular interactions with acceptors etc. Notably, DNP-DA represents a limited example of nitrogen-perylene based CPL emitter with glum around 6×10-3 . Intrigued by the facile fabrication via a simple amination-cross coupling sequence and other above advancing features, this work demonstrates the potential generality of utilizing 1,6-diazecine as a chiral unit to build CPL-active materials.
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Affiliation(s)
- Guiru Liu
- School of Chemistry and Chemical Engineering, Inner Mongolia University, 235 West University Street, Hohhot, 010021, China
| | - Wenhao Zhang
- School of Chemistry and Chemical Engineering, Inner Mongolia University, 235 West University Street, Hohhot, 010021, China
| | - Yao Xiao
- School of Chemistry and Chemical Engineering, Inner Mongolia University, 235 West University Street, Hohhot, 010021, China
| | - Jing Cao
- School of Chemistry and Chemical Engineering, Inner Mongolia University, 235 West University Street, Hohhot, 010021, China
| | - Yamei Liang
- School of Chemistry and Chemical Engineering, Inner Mongolia University, 235 West University Street, Hohhot, 010021, China
| | - Guanghua Liu
- School of Chemistry and Chemical Engineering, Inner Mongolia University, 235 West University Street, Hohhot, 010021, China
| | - Laiyun Zhou
- School of Chemistry and Chemical Engineering, Inner Mongolia University, 235 West University Street, Hohhot, 010021, China
| | - Jianye Gong
- School of Chemistry and Chemical Engineering, Inner Mongolia University, 235 West University Street, Hohhot, 010021, China
| | - Jianguo Wang
- School of Chemistry and Chemical Engineering, Inner Mongolia University, 235 West University Street, Hohhot, 010021, China
| | - Qing Wang
- School of Chemistry and Chemical Engineering, Inner Mongolia University, 235 West University Street, Hohhot, 010021, China
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8
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Wei H, Hou X, Xu T, Zou Y, Li G, Wu S, Geng Y, Wu J. Solution‐Phase Synthesis and Isolation of An Aza‐Triangulene and Its Cation in Crystalline Form. Angew Chem Int Ed Engl 2022; 61:e202210386. [DOI: 10.1002/anie.202210386] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Indexed: 11/07/2022]
Affiliation(s)
- Haipeng Wei
- Department of Chemistry National University of Singapore 3 Science Drive 3 Singapore 117543 Singapore
- Joint School of National University of Singapore and Tianjin University International Campus of Tianjin University Binhai New City Fuzhou 350207 China
| | - Xudong Hou
- Department of Chemistry National University of Singapore 3 Science Drive 3 Singapore 117543 Singapore
| | - Tingting Xu
- Department of Chemistry National University of Singapore 3 Science Drive 3 Singapore 117543 Singapore
| | - Ya Zou
- Department of Chemistry National University of Singapore 3 Science Drive 3 Singapore 117543 Singapore
| | - Guangwu Li
- Department of Chemistry National University of Singapore 3 Science Drive 3 Singapore 117543 Singapore
| | - Shaofei Wu
- Department of Chemistry National University of Singapore 3 Science Drive 3 Singapore 117543 Singapore
| | - Yanhou Geng
- Joint School of National University of Singapore and Tianjin University International Campus of Tianjin University Binhai New City Fuzhou 350207 China
| | - Jishan Wu
- Department of Chemistry National University of Singapore 3 Science Drive 3 Singapore 117543 Singapore
- Joint School of National University of Singapore and Tianjin University International Campus of Tianjin University Binhai New City Fuzhou 350207 China
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9
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Wei H, Hou X, Xu T, Zou Y, Li G, Wu S, Geng Y, Wu J. Solution‐Phase Synthesis and Isolation of An Aza‐Triangulene and Its Cation in Crystalline Form. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202210386] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Haipeng Wei
- National University of Singapore Chemistry SINGAPORE
| | - Xudong Hou
- National University of Singapore Chemistry SINGAPORE
| | - Tingting Xu
- National University of Singapore Chemistry SINGAPORE
| | - Ya Zou
- National University of Singapore Chemistry SINGAPORE
| | - Guangwu Li
- National University of Singapore Chemistry SINGAPORE
| | - Shaofei Wu
- National University of Singapore Chemistry SINGAPORE
| | - Yanhou Geng
- National University of Singapore Chemistry SINGAPORE
| | - Jishan Wu
- National University of Singapore Chemistry 3 Science Drive 3 117543 Singapore SINGAPORE
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10
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Kueh W, Shi X, Phua TW, Kueh H, Liau YC, Chi C. π-Extended S-Heterocyclic Naphthoquinodimethane with Dual Diradical and Dipolar Character. Org Lett 2022; 24:5935-5940. [PMID: 35938992 DOI: 10.1021/acs.orglett.2c02188] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The 2,6-naphthoquinodimethane (2,6-NQDM) containing S-heterocyclic molecule 6-S was synthesized, and its dual open-shell diradical and dipolar characters were revealed via both experimental and theoretical studies. Unlike the shorter p-quinodimethane (p-QDM)-containing analogue 5-S, which possesses a closed-shell ground state (y0 = 0%) with small dipolar character, 6-S possesses enhanced dipolar character with a singlet diradical ground state (y0 = 23.3%) and a thermally accessible triplet excited state (ΔEST = -4.13 kcal/mol). Despite this, it displays good stability (t1/2 = 41days) under ambient air and light conditions due to its distinctive dipolar character and kinetic blocking of reactive sites.
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Affiliation(s)
- Weixiang Kueh
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore, 117543, Singapore
| | - Xueliang Shi
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore, 117543, Singapore
| | - Teng Wei Phua
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore, 117543, Singapore
| | - Huilin Kueh
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore, 117543, Singapore
| | - Yuan Cheng Liau
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore, 117543, Singapore
| | - Chunyan Chi
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore, 117543, Singapore
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11
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Badía-Domínguez I, Canola S, Hernández Jolín V, López Navarrete JT, Sancho-García JC, Negri F, Ruiz Delgado MC. Tuning the Diradical Character of Indolocarbazoles: Impact of Structural Isomerism and Substitution Position. J Phys Chem Lett 2022; 13:6003-6010. [PMID: 35737902 PMCID: PMC9272443 DOI: 10.1021/acs.jpclett.2c01325] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
In this study, a set of 10 positional indolocarbazole (ICz) isomers substituted with dicyanomethylene groups connected via para or meta positions are computationally investigated with the aim of exploring the efficiency of structural isomerism and substitution position in controlling their optical and electronic properties. Unrestricted density functional theory (DFT), a spin-flip time-dependent DFT approach, and the multireference CASSCF/NEVPT2 method have been applied to correlate the diradical character with the energetic trends (i.e., singlet-triplet energy gaps). In addition, the nucleus-independent chemical shift together with ACID plots and Raman intensity calculations were used to strengthen the relationship between the diradical character and (anti)aromaticity. Our study reveals that the substitution pattern and structural isomerism represent a very effective way to tune the diradical properties in ICz-based systems with meta-substituted systems with a V-shaped structure displaying the largest diradical character. Thus, this work contributes to the elucidation of the challenging chemical reactivity and physical properties of diradicaloid systems, guiding experimental chemists to produce new molecules with desirable properties.
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Affiliation(s)
- Irene Badía-Domínguez
- Department
of Physical Chemistry, University of Málaga, Campus de Teatinos s/n, 29071 Málaga, Spain
| | - Sofia Canola
- Department
of Chemistry “Giacomo Ciamician”, University of Bologna, 40126 Bologna, Italy
| | - Víctor Hernández Jolín
- Department
of Physical Chemistry, University of Málaga, Campus de Teatinos s/n, 29071 Málaga, Spain
| | - Juan T. López Navarrete
- Department
of Physical Chemistry, University of Málaga, Campus de Teatinos s/n, 29071 Málaga, Spain
| | | | - Fabrizia Negri
- Department
of Chemistry “Giacomo Ciamician”, University of Bologna, 40126 Bologna, Italy
- INSTM, UdR Bologna, 40126 Bologna, Italy
| | - M. Carmen Ruiz Delgado
- Department
of Physical Chemistry, University of Málaga, Campus de Teatinos s/n, 29071 Málaga, Spain
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12
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Zhang W, Liu G, Cao J, Chen Y, Gao L, Liu G, Dai G, Wang Q. Synthesis and Properties of BN-embedded N-Perylene. Chem Asian J 2022; 17:e202200340. [PMID: 35559597 DOI: 10.1002/asia.202200340] [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: 04/03/2022] [Revised: 05/12/2022] [Indexed: 11/11/2022]
Abstract
A B-N embedded nitrogen-annulated perylene has been successfully synthesized. The resultant molecule BN-NP is isoelectronic to coronene , but owns a five-membered pyrrole ring. Experiments and DFT calculations indicated that peripheral pyrrole and BN modifications endow BN-NP with various unique properties like bent structure, dual emission, efficient Lewis acidic response, peripheral aromaticity, narrowest energy band gap among all coronene isoelectronic structures and so on.
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Affiliation(s)
- Wenhao Zhang
- Inner Mongolia University, Chemistry and Chemical Engineering, CHINA
| | - Guiru Liu
- Inner Mongolia University, Chemistry and Chemical Engineering, CHINA
| | - Jing Cao
- Inner Mongolia University, Chemistry and Chemical Engineering, CHINA
| | - Yuanyuan Chen
- Hangzhou Normal University, Material, Chemistry and Chemical Engineering, CHINA
| | - Lei Gao
- Inner Mongolia University, Chemistry and Chemical Engineering, CHINA
| | - Guanghua Liu
- Inner Mongolia University, Chemistry and Chemical Engineering, CHINA
| | - Gaole Dai
- Hangzhou Normal University, Material, Chemistry and Chemical Engineering, CHINA
| | - Qing Wang
- Inner Mongolia University, Chemistry and Chemical Engineering, 235 West University Street, 010021, Hohhot, CHINA
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13
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Sun J, Zhao E, Liang J, Li H, Zhao S, Wang G, Gu X, Tang BZ. Diradical-Featured Organic Small-Molecule Photothermal Material with High-Spin State in Dimers for Ultra-Broadband Solar Energy Harvesting. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2022; 34:e2108048. [PMID: 34882850 DOI: 10.1002/adma.202108048] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Revised: 11/30/2021] [Indexed: 06/13/2023]
Abstract
Organic materials with radical characteristics are gaining increasing attention, due to their potential implications in highly efficient utilization of solar energy. Manipulating intermolecular interactions is crucial for tuning radical properties, as well as regulating their absorption bands, and thus improving the photothermal conversion efficiency. Herein, a diradical-featured organic small-molecule croconium derivative, CR-DPA-T, is reported for highly efficient utilization of solar energy. Upon aggregation, CR-DPA-T exists in dimer form, stabilized by the strong intermolecular π-π interactions, and exhibits a rarely reported high-spin state. Benefiting from the synergic effects of radical characteristics and strong intermolecular π-π interactions, CR-DPA-T powder absorbs broadly from 300 to 2000 nm. In-depth investigations with transient absorption analysis reveal that the strong intermolecular π-π interactions can promote nonradiative relaxation by accelerating internal conversion and facilitating intermolecular charge transfer (ICT) between dimeric molecules to open up faster internal conversion pathways. Remarkably, CR-DPA-T powder demonstrates a high photothermal efficiency of 79.5% under 808 nm laser irradiation. By employing CR-DPA-T as a solar harvester, a CR-DPA-T-loaded flexible self-healing poly(dimethylsiloxane) (H-PDMS) film, named as H-PDMS/CR-DPA-T self-healing film, is fabricated and employed for solar-thermal applications. These findings provide a feasible guideline for developing highly efficient diradical-featured organic photothermal materials.
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Affiliation(s)
- Jiangman Sun
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, College of Materials Science and Engineering, State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Engui Zhao
- School of Science, Harbin Institute of Technology, Shenzhen, HIT Campus of University Town, Shenzhen, 518055, China
| | - Jie Liang
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, College of Materials Science and Engineering, State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Hui Li
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, College of Materials Science and Engineering, State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Shuhong Zhao
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, College of Materials Science and Engineering, State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Guan Wang
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, College of Materials Science and Engineering, State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Xinggui Gu
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, College of Materials Science and Engineering, State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Ben Zhong Tang
- Shenzhen Institute of Aggregate Science and Technology, School of Science and Engineering, The Chinese University of Hong Kong (Shenzhen), Shenzhen, 518172, China
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14
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Konishi A, Horii K, Iwasa H, Okada Y, Kishi R, Nakano M, Yasuda M. Characterization of Benzo[a]naphtho[2,3-f]pentalene: Interrelation between Open-shell and Antiaromatic Characters Governed by Mode of the Quinoidal Subunit and Molecular Symmetry. Chem Asian J 2021; 16:1553-1561. [PMID: 33861497 DOI: 10.1002/asia.202100398] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2021] [Indexed: 12/18/2022]
Abstract
The singlet open-shell character and antiaromaticity are intriguing features in π-conjugated carbocycles. These two exhibit similar chemical and physical properties. However, they rarely coexist in the same molecule. Understanding the interrelation between the open-shell and antiaromatic characteristics in the same molecule is crucial to control the electronic properties. Herein we describe the synthesis and characterization of a new member of diareno[a,f]pentalene, benzo[a]naphtho[2,3-f]pentalene 6. Unlike its isomer 5 with a closed-shell ground state, 6 exhibits an appreciable open-shell character and a moderate antiaromatic feature. The behaviors of the open-shell index (y0 ) against the difference of the proton chemical signal (Δδ(H1 )) between pentalenide dianions/neutral pentalenes for our reported pentalenes 1, 4, 5, and 6 give a thought-provoking conclusion about the interrelation between open-shell and antiaromatic characteristics in this series. The mode of the incorporated quinoidal moiety and the formal molecular symmetry are critical to balance these two characteristics.
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Affiliation(s)
- Akihito Konishi
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka, 565-0871, Japan.,Center for Atomic and Molecular Technologies, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka, 565-0871, Japan.,Innovative Catalysis Science Division, Institute for Open and Transdisciplinary Research Initiatives (ICS-OTRI), Osaka University, Suita, Osaka, 565-0871, Japan
| | - Koki Horii
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Haruna Iwasa
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Yui Okada
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Ryohei Kishi
- Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka, 560-0043, Japan.,Center for Quantum Information and Quantum Biology, Institute for Open and Transdisciplinary Research Initiatives (QIQB-OTRI), Osaka University, Toyonaka, Osaka, 560-8531, Japan
| | - Masayoshi Nakano
- Innovative Catalysis Science Division, Institute for Open and Transdisciplinary Research Initiatives (ICS-OTRI), Osaka University, Suita, Osaka, 565-0871, Japan.,Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka, 560-0043, Japan.,Center for Quantum Information and Quantum Biology, Institute for Open and Transdisciplinary Research Initiatives (QIQB-OTRI), Osaka University, Toyonaka, Osaka, 560-8531, Japan.,Center for Spintronics Research Network (CSRN), Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka, 560-8531, Japan
| | - Makoto Yasuda
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka, 565-0871, Japan.,Innovative Catalysis Science Division, Institute for Open and Transdisciplinary Research Initiatives (ICS-OTRI), Osaka University, Suita, Osaka, 565-0871, Japan
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15
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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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16
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Chen G, Sun J, Peng Q, Sun Q, Wang G, Cai Y, Gu X, Shuai Z, Tang BZ. Biradical-Featured Stable Organic-Small-Molecule Photothermal Materials for Highly Efficient Solar-Driven Water Evaporation. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e1908537. [PMID: 32519356 DOI: 10.1002/adma.201908537] [Citation(s) in RCA: 81] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/31/2019] [Revised: 04/30/2020] [Indexed: 06/11/2023]
Abstract
With recent progress in photothermal materials, organic small molecules featured with flexibility, diverse structures, and tunable properties exhibit unique advantages but have been rarely applied in solar-driven water evaporation owing to limited sunlight absorption resulting in low solar-thermal conversion. Herein, a stable croconium derivative, named CR-TPE-T, is designed to exhibit the unique biradical property and strong π-π stacking in the solid state, which facilitate not only a broad absorption spectrum from 300 to 1600 nm for effective sunlight harvesting, but also highly efficient photothermal conversion by boosting nonradiative decay. The photothermal efficiency is evaluated to be 72.7% under 808 nm laser irradiation. Based on this, an interfacial-heating evaporation system based on CR-TPE-T is established successfully, using which a high solar-energy-to-vapor efficiency of 87.2% and water evaporation rate of 1.272 kg m-2 h-1 under 1 sun irradiation are obtained, thus making an important step toward the application of organic-small-molecule photothermal materials in solar energy utilization.
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Affiliation(s)
- Guanyu Chen
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, College of Materials Science and Engineering, State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Jiangman Sun
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, College of Materials Science and Engineering, State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Qian Peng
- Key Laboratory of Organic Solids, Beijing National Laboratory for Molecular Sciences (BNLMS), Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100080, China
| | - Qi Sun
- Key Laboratory of Organic Optoelectronics and Molecular Engineering, Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Guan Wang
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, College of Materials Science and Engineering, State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Yuanjing Cai
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, College of Materials Science and Engineering, State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Xinggui Gu
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, College of Materials Science and Engineering, State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Zhigang Shuai
- Key Laboratory of Organic Optoelectronics and Molecular Engineering, Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Ben Zhong Tang
- Department of Chemistry, Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, Institute for Advanced Study, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
- Center for Aggregation-Induced Emission, SCUT-HKUST Joint Research Institute, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou, 510640, China
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17
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Wang W, Ge L, Xue G, Miao F, Chen P, Chen H, Lin Y, Ni Y, Xiong J, Hu Y, Wu J, Zheng Y. Fine-tuning the diradical character of molecular systems via the heteroatom effect. Chem Commun (Camb) 2020; 56:1405-1408. [PMID: 31912829 DOI: 10.1039/c9cc08538f] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Heteroatoms were introduced as a novel modification strategy for fine-tuning the diradical character of molecular systems. Both the diradical character and the singlet-triplet energy gaps of diketopyrrolopyrrole based phenoxyl diradicaloids decreased as the size of the substituted heteroatoms (from O, S to Se atom) increased.
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Affiliation(s)
- Wenxiang Wang
- Department School of Optoelectronic Science and Engineering Institution University of Electronic Science and Technology of China (UESTC), Chengdu 610054, China.
| | - Lingbing Ge
- Department School of Optoelectronic Science and Engineering Institution University of Electronic Science and Technology of China (UESTC), Chengdu 610054, China.
| | - Guodong Xue
- Department School of Optoelectronic Science and Engineering Institution University of Electronic Science and Technology of China (UESTC), Chengdu 610054, China.
| | - Fang Miao
- Department School of Optoelectronic Science and Engineering Institution University of Electronic Science and Technology of China (UESTC), Chengdu 610054, China.
| | - Pingan Chen
- Key Laboratory for Micro/Nano Optoelectronic Devices of Ministry of Education & Hunan Provincial Key Laboratory of Low-Dimensional Structural Physics and Devices School of Physics and Electronics Hunan University, Changsha 410082, China
| | - Hanjiao Chen
- Analytical & Testing Center Sichuan University, Chengdu 610064, China
| | - Yiwei Lin
- Department School of Optoelectronic Science and Engineering Institution University of Electronic Science and Technology of China (UESTC), Chengdu 610054, China.
| | - Yong Ni
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, 117543, Singapore
| | - Jingyuan Xiong
- West China School of Public Health and Healthy Food Evaluation Research Center, Sichuan University, Chengdu 610041, China
| | - Yuanyuan Hu
- Key Laboratory for Micro/Nano Optoelectronic Devices of Ministry of Education & Hunan Provincial Key Laboratory of Low-Dimensional Structural Physics and Devices School of Physics and Electronics Hunan University, Changsha 410082, China
| | - Jishan Wu
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, 117543, Singapore
| | - Yonghao Zheng
- Department School of Optoelectronic Science and Engineering Institution University of Electronic Science and Technology of China (UESTC), Chengdu 610054, China.
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18
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Barker JE, Dressler JJ, Cárdenas Valdivia A, Kishi R, Strand ET, Zakharov LN, MacMillan SN, Gómez-García CJ, Nakano M, Casado J, Haley MM. Molecule Isomerism Modulates the Diradical Properties of Stable Singlet Diradicaloids. J Am Chem Soc 2020; 142:1548-1555. [PMID: 31876145 DOI: 10.1021/jacs.9b11898] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Inclusion of quinoidal cores in conjugated hydrocarbons is a common strategy to modulate the properties of diradicaloids formed by aromaticity recovery within the quinoidal unit. Here we describe an alternative approach of tuning of diradical properties in indenoindenodibenzothiophenes upon anti → syn isomerism of the benzothiophene motif. This alters the relationship of the S atom with the radical center from linear to cross conjugation yet retains the same 2,6-naphtho conjugation pattern of the rearomatized core. We conduct a full comparison between the anti and syn derivatives based on structural, spectroscopic, theoretical, and magnetic measurements, showing that these systems are stable open-shell singlet diradicaloids that only access their triplet state at elevated temperatures.
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Affiliation(s)
- Joshua E Barker
- Department of Chemistry & Biochemistry and the Materials Science Institute , University of Oregon , Eugene , Oregon 97403-1253 , United States
| | - Justin J Dressler
- Department of Chemistry & Biochemistry and the Materials Science Institute , University of Oregon , Eugene , Oregon 97403-1253 , United States
| | - Abel Cárdenas Valdivia
- Department of Physical Chemistry , University of Malaga , Campus de Teatinos s/n 29071 Malaga , Spain
| | - Ryohei Kishi
- Department of Materials Engineering Science, Graduate School of Engineering Science , Osaka University , Toyonaka, Osaka 560-8531 , Japan
| | - Eric T Strand
- Department of Chemistry & Biochemistry and the Materials Science Institute , University of Oregon , Eugene , Oregon 97403-1253 , United States
| | - Lev N Zakharov
- CAMCOR , University of Oregon , Eugene , Oregon 97403-1433 , United States
| | - Samantha N MacMillan
- Department of Chemistry & Chemical Biology , Cornell University , Ithaca , New York 14853 , United States
| | - Carlos J Gómez-García
- Department of Inorganic Chemistry and Instituto de Ciencia Molecular , Universidad de Valencia , 46980 Paterna , Spain
| | - Masayoshi Nakano
- Department of Materials Engineering Science, Graduate School of Engineering Science , Osaka University , Toyonaka, Osaka 560-8531 , Japan.,Center for Spintronics Research Network, Graduate School of Engineering Science , Osaka University , Toyonaka, Osaka 560-8531 , Japan.,Quantum Information and Quantum Biology Division, Institute for Open and Transdisciplinary Research Initiatives , Osaka University , Toyonaka, Osaka 560-8531 , Japan.,Institute for Molecular Science , 38 Nishigo-Naka , Myodaiji, Okazaki 444-8585 , Japan
| | - Juan Casado
- Department of Physical Chemistry , University of Malaga , Campus de Teatinos s/n 29071 Malaga , Spain
| | - Michael M Haley
- Department of Chemistry & Biochemistry and the Materials Science Institute , University of Oregon , Eugene , Oregon 97403-1253 , United States.,Phil and Penny Knight Campus for Accelerating Scientific Impact , University of Oregon , Eugene , Oregon 97403-6231 , United States
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19
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Inaoka S, Iwata K, Saha S. Towards the critical understanding of selected vibrational features in biologically important dicyano aromatic conjugated molecules: Importance of electron donating/withdrawal groups and geometry associated with dicyano group. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2020; 224:117419. [PMID: 31369992 DOI: 10.1016/j.saa.2019.117419] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/19/2019] [Revised: 07/23/2019] [Accepted: 07/23/2019] [Indexed: 06/10/2023]
Abstract
The Raman spectra of a series of synthesized DC molecules (benzylidene malononitrile derivatives) with different electron donating (EDG) and electron withdrawing (EWG) group have been presented and analyzed with DFT calculated spectra. In particular, different functional groups effect on cyano stretching (∼2200 cm-1), phenyl ring breathing and alkenic double bond stretch which often appears mixed up (1475-1650 cm-1) are studied systematically for several aromatic conjugated DC derivatives. Interestingly, symmetric stretching frequency of the DC compounds having two CN groups at geminal position appears at higher wavenumber (by 11-15 cm-1) compared to their corresponding asymmetric stretch frequency. Angle (between dicyano group) dependent theoretical study indicates that the relative appearance of cyano symmetric/anti-symmetric stretching frequency depends on whether dicyano groups are at the geminal or vicinal position and the angle between them. Complete band assignments of observed Raman frequencies have been performed by potential energy distributions (PEDs) available in GAR2PED software. Our results will help to understand the vibrational feature of this important class of compounds in biological medium when used as probe.
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Affiliation(s)
- Shun Inaoka
- Department of Chemistry, Faculty of Science, Gakushuin University, 1-5-1 Mejiro, Toshima-ku, Japan
| | - Koichi Iwata
- Department of Chemistry, Faculty of Science, Gakushuin University, 1-5-1 Mejiro, Toshima-ku, Japan
| | - Satyen Saha
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi 221005, India.
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20
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Arikawa S, Shimizu A, Shintani R. Azoniadibenzo[
a
,
j
]phenalenide: A Polycyclic Zwitterion with Singlet Biradical Character. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201902006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Shinobu Arikawa
- Division of ChemistryDepartment of Materials Engineering ScienceGraduate School of Engineering ScienceOsaka University, Toyonaka Osaka 560-8531 Japan
| | - Akihiro Shimizu
- Division of ChemistryDepartment of Materials Engineering ScienceGraduate School of Engineering ScienceOsaka University, Toyonaka Osaka 560-8531 Japan
| | - Ryo Shintani
- Division of ChemistryDepartment of Materials Engineering ScienceGraduate School of Engineering ScienceOsaka University, Toyonaka Osaka 560-8531 Japan
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21
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Arikawa S, Shimizu A, Shintani R. Azoniadibenzo[
a
,
j
]phenalenide: A Polycyclic Zwitterion with Singlet Biradical Character. Angew Chem Int Ed Engl 2019; 58:6415-6419. [DOI: 10.1002/anie.201902006] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2019] [Indexed: 11/09/2022]
Affiliation(s)
- Shinobu Arikawa
- Division of ChemistryDepartment of Materials Engineering ScienceGraduate School of Engineering ScienceOsaka University, Toyonaka Osaka 560-8531 Japan
| | - Akihiro Shimizu
- Division of ChemistryDepartment of Materials Engineering ScienceGraduate School of Engineering ScienceOsaka University, Toyonaka Osaka 560-8531 Japan
| | - Ryo Shintani
- Division of ChemistryDepartment of Materials Engineering ScienceGraduate School of Engineering ScienceOsaka University, Toyonaka Osaka 560-8531 Japan
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22
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Wang L, Zhang L, Fang Y, Zhao Y, Tan G, Wang X. Orthogonal Oriented Bisanthrancene‐Bridged Bis(Triarylamine) Diradical Dications: Isolation, Characterizations and Crystal Structures. Chem Asian J 2019; 14:1708-1711. [DOI: 10.1002/asia.201801816] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2018] [Revised: 02/20/2019] [Indexed: 11/06/2022]
Affiliation(s)
- Lei Wang
- State Key Laboratory of Coordination ChemistryJiangsu Key Laboratory of Advanced Organic MaterialsSchool of Chemistry and Chemical EngineeringCollaborative Innovation Center of Advanced MicrostructuresNanjing University Nanjing 210023 China
| | - Li Zhang
- State Key Laboratory of Coordination ChemistryJiangsu Key Laboratory of Advanced Organic MaterialsSchool of Chemistry and Chemical EngineeringCollaborative Innovation Center of Advanced MicrostructuresNanjing University Nanjing 210023 China
| | - Yong Fang
- State Key Laboratory of Coordination ChemistryJiangsu Key Laboratory of Advanced Organic MaterialsSchool of Chemistry and Chemical EngineeringCollaborative Innovation Center of Advanced MicrostructuresNanjing University Nanjing 210023 China
| | - Yue Zhao
- State Key Laboratory of Coordination ChemistryJiangsu Key Laboratory of Advanced Organic MaterialsSchool of Chemistry and Chemical EngineeringCollaborative Innovation Center of Advanced MicrostructuresNanjing University Nanjing 210023 China
| | - Gengwen Tan
- State Key Laboratory of Coordination ChemistryJiangsu Key Laboratory of Advanced Organic MaterialsSchool of Chemistry and Chemical EngineeringCollaborative Innovation Center of Advanced MicrostructuresNanjing University Nanjing 210023 China
| | - Xinping Wang
- State Key Laboratory of Coordination ChemistryJiangsu Key Laboratory of Advanced Organic MaterialsSchool of Chemistry and Chemical EngineeringCollaborative Innovation Center of Advanced MicrostructuresNanjing University Nanjing 210023 China
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23
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Wehrmann CM, Charlton RT, Chen MS. A Concise Synthetic Strategy for Accessing Ambient Stable Bisphenalenyls toward Achieving Electroactive Open-Shell π-Conjugated Materials. J Am Chem Soc 2019; 141:3240-3248. [PMID: 30689950 DOI: 10.1021/jacs.8b13300] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Open-shell, π-conjugated molecules represent exciting next-generation materials due to their unique optoelectronic and magnetic properties and their potential to exploit unpaired spin densities to engineer exceptionally close π-π interactions. However, prior syntheses of ambient stable, open-shell molecules required lengthy routes and displayed intermolecular spin-spin coupling with limited dimensionality. Here we report a general fragment-coupling strategy with phenalenone that enables the rapid construction of both biradicaloid (Ph2- s-IDPL, 1) and radical [10(OTf)] bisphenalenyls in ≤7 steps from commercial starting materials. Significantly, we have discovered an electronically stabilized π-radical cation [10(OTf)] that shows multiple intermolecular closer-than-vdW contacts (<3.4 Å) in its X-ray crystal structure. DFT simulations reveal that each of these close π-π interactions allows for intermolecular spin-spin coupling to occur and suggests that 10(OTf) achieves electrostatically enhanced intermolecular covalent-bonding interactions in two dimensions. Single crystal devices were fabricated from 10(OTf) and demonstrate average electrical conductivities of 1.31 × 10-2 S/cm. Overall, these studies highlight the practical synthesis and device application of a new π-conjugated material, based on a design principle that promises to facilitate spin and charge transport.
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Affiliation(s)
- Caleb M Wehrmann
- Department of Chemistry , Lehigh University , Bethlehem , Pennsylvania 18015-3102 , United States
| | - Ryan T Charlton
- Department of Chemistry , Lehigh University , Bethlehem , Pennsylvania 18015-3102 , United States
| | - Mark S Chen
- Department of Chemistry , Lehigh University , Bethlehem , Pennsylvania 18015-3102 , United States
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24
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Abstract
A family of push-pull quinoidal porphyrin monomers has been prepared from a meso-formyl porphyrin by bromination, thioacetal formation, palladium-catalyzed coupling with malononitrile and oxidation with DDQ. Attempts at extending this synthesis to a push-pull quinoidal/cumulenic porphyrin dimer were not successful. The crystal structures of the quinoidal porphyrins indicate that there is no significant contribution from singlet biradical or zwitterionic resonance forms. The crystal structure of an ethyne-linked porphyrin dimer shows that the torsion angle between the porphyrin units is only about 3°, in keeping with crystallographic results on related compounds, but contrasting with the torsion angle of about 35° predicted by computational studies. The free-base quinoidal porphyrin monomers form tightly π-stacked layer structures, despite their curved geometries and bulky aryl substituents.
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Affiliation(s)
- Martin J Smith
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, Oxford OX1 3TA, UK.
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25
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Adinarayana B, Shimizu D, Osuka A. Stable (BIII
-Subporphyrin-5-yl)dicyanomethyl Radicals. Chemistry 2019; 25:1706-1710. [DOI: 10.1002/chem.201805601] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2018] [Indexed: 11/12/2022]
Affiliation(s)
- Bellamkonda Adinarayana
- Department of Chemistry; Graduate School of Science; Kyoto University; Sakyo-ku Kyoto 606-8502 Japan
| | - Daiki Shimizu
- Department of Chemistry; Graduate School of Science; Kyoto University; Sakyo-ku Kyoto 606-8502 Japan
| | - Atsuhiro Osuka
- Department of Chemistry; Graduate School of Science; Kyoto University; Sakyo-ku Kyoto 606-8502 Japan
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26
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Richter M, Hahn S, Dmitrieva E, Rominger F, Popov A, Bunz UHF, Feng X, Berger R. Helical Ullazine-Quinoxaline-Based Polycyclic Aromatic Hydrocarbons. Chemistry 2018; 25:1345-1352. [PMID: 30397968 DOI: 10.1002/chem.201804751] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2018] [Indexed: 01/12/2023]
Abstract
Polycyclic aromatic azomethine ylides (PAMYs) are powerful building blocks in the bottom-up synthesis of internally nitrogen-containing polycyclic aromatic hydrocarbons (N-PAHs) through 1,3-cycloaddition reactions. In this work, the cycloaddition reaction of PAMYs to asymmetric ortho-quinones is presented, which, in contrast to the addition to symmetric para-quinones, facilitates subsequent condensation reactions and allows the synthesis of three helical N-PAHs with ullazine-quinoxaline (UQ-1-3) backbones. UQ-1 and UQ-2 possess two helical centers; however, single-crystal X-ray analysis together with the computational modeling of UQ-3 elucidate the formation of only the thermodynamically most stable geometry with four helical centers in a (P,P,M,M) configuration. For the series UQ-1-3, the number of redox steps is directly correlated with the number of ullazine or quinoxaline units incorporated into the targeted molecular backbones. A detailed investigation of the spectroscopic and magnetic properties of the radical cation and anion as well as the dication and dianion species by in situ EPR/UV/Vis-NIR spectroelectrochemistry is provided. The excellent optical and redox properties combined with helical geometries render them possibly applicable as chiral emitter or ambipolar charge transport material in organic electronics.
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Affiliation(s)
- Marcus Richter
- Center for Advancing Electronics Dresden (cfaed), Faculty of Chemistry and Food Chemistry, Dresden University of Technology, Institute for Molecular Functional Materials, Mommsenstrasse 4, 01069, Dresden, Germany
| | - Sebastian Hahn
- Organisch-Chemisches Institut, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 270, 69120, Heidelberg, Germany
| | - Evgenia Dmitrieva
- Nanoscale Chemistry, Leibniz Institute for Solid State and Materials Research, Center of Spectroelectrochemistry, Helmholtzstrasse 20, 01069, Dresden, Germany
| | - Frank Rominger
- Organisch-Chemisches Institut, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 270, 69120, Heidelberg, Germany
| | - Alexey Popov
- Nanoscale Chemistry, Leibniz Institute for Solid State and Materials Research, Center of Spectroelectrochemistry, Helmholtzstrasse 20, 01069, Dresden, Germany
| | - Uwe H F Bunz
- Organisch-Chemisches Institut, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 270, 69120, Heidelberg, Germany
| | - Xinliang Feng
- Center for Advancing Electronics Dresden (cfaed), Faculty of Chemistry and Food Chemistry, Dresden University of Technology, Institute for Molecular Functional Materials, Mommsenstrasse 4, 01069, Dresden, Germany
| | - Reinhard Berger
- Center for Advancing Electronics Dresden (cfaed), Faculty of Chemistry and Food Chemistry, Dresden University of Technology, Institute for Molecular Functional Materials, Mommsenstrasse 4, 01069, Dresden, Germany
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27
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Konishi A, Okada Y, Kishi R, Nakano M, Yasuda M. Enhancement of Antiaromatic Character via Additional Benzoannulation into Dibenzo[a,f]pentalene: Syntheses and Properties of Benzo[a]naphtho[2,1-f]pentalene and Dinaphtho[2,1-a,f]pentalene. J Am Chem Soc 2018; 141:560-571. [DOI: 10.1021/jacs.8b11530] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Akihito Konishi
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
- Center for Atomic and Molecular Technologies, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Yui Okada
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Ryohei Kishi
- Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka 560-0043, Japan
| | - Masayoshi Nakano
- Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka 560-0043, Japan
| | - Makoto Yasuda
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
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28
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Yamane M, Kishi R, Tonami T, Okada K, Nagami T, Kitagawa Y, Nakano M. Open-Shell Characters, Aromaticities and Third-Order Nonlinear Optical Properties of Carbon Nanobelts Composed of Five- and Six-Membered Rings. ASIAN J ORG CHEM 2018. [DOI: 10.1002/ajoc.201800390] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Masaki Yamane
- Department of Materials Engineering Science, Graduate School of Engineering Science; Osaka University; 1-3 Machikaneyama Toyonaka, Osaka 560-8531 Japan
| | - Ryohei Kishi
- Department of Materials Engineering Science, Graduate School of Engineering Science; Osaka University; 1-3 Machikaneyama Toyonaka, Osaka 560-8531 Japan
| | - Takayoshi Tonami
- Department of Materials Engineering Science, Graduate School of Engineering Science; Osaka University; 1-3 Machikaneyama Toyonaka, Osaka 560-8531 Japan
| | - Kenji Okada
- Department of Materials Engineering Science, Graduate School of Engineering Science; Osaka University; 1-3 Machikaneyama Toyonaka, Osaka 560-8531 Japan
| | - Takanori Nagami
- Department of Materials Engineering Science, Graduate School of Engineering Science; Osaka University; 1-3 Machikaneyama Toyonaka, Osaka 560-8531 Japan
| | - Yasutaka Kitagawa
- Department of Materials Engineering Science, Graduate School of Engineering Science; Osaka University; 1-3 Machikaneyama Toyonaka, Osaka 560-8531 Japan
- Center for Spintronics Research Network (CSRN), Graduate School of Engineering Science; Osaka University; Toyonaka, Osaka 560-8531 Japan
| | - Masayoshi Nakano
- Department of Materials Engineering Science, Graduate School of Engineering Science; Osaka University; 1-3 Machikaneyama Toyonaka, Osaka 560-8531 Japan
- Center for Spintronics Research Network (CSRN), Graduate School of Engineering Science; Osaka University; Toyonaka, Osaka 560-8531 Japan
- Institute for Molecular Science (IMS); 38 Nishigo-Naka Myodaiji, Okazaki 444-8585 Japan
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29
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Desroches M, Morin JF. Wurster-Type Anthanthrene Polyradicaloid Cations. Macromol Rapid Commun 2018; 39:e1800214. [DOI: 10.1002/marc.201800214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2018] [Revised: 04/23/2018] [Indexed: 11/09/2022]
Affiliation(s)
- Maude Desroches
- Département de Chimie et Centre de Recherche sur les Matériaux Avancés (CERMA); Université Laval; Pavillon A.-Vachon, 1045 Ave de la Médecine Québec G1V 0A6 Canada
| | - Jean-François Morin
- Département de Chimie et Centre de Recherche sur les Matériaux Avancés (CERMA); Université Laval; Pavillon A.-Vachon, 1045 Ave de la Médecine Québec G1V 0A6 Canada
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30
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Medina Rivero S, Mayorga Burrezo P, Sandoval-Salinas ME, Li T, Ramírez FJ, Casanova D, Wang X, Casado J. Isomerism, Diradical Signature, and Raman Spectroscopy: Underlying Connections in Diamino Oligophenyl Dications. Chemphyschem 2018; 19:1465-1470. [PMID: 29570949 DOI: 10.1002/cphc.201800085] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2018] [Indexed: 11/06/2022]
Abstract
A diradical dication of a 4,4'-di(bis(1,4-methylphenyl)amino)-p-terphenyl oligomer has been characterized in solid-state by Raman spectroscopy and thermo-spectroscopy together with quantum chemical calculations. The diradical character has been evaluated on the basis of the Raman spectra and as a function of temperature. A complete understanding of the nature of the changes in solid state has been provided based on a pseudo-Jahn-Teller effect, which is feasible owing to the fine balance between quinoidal/aromatic extension among consecutive rings and steric crowding. This study contributes to the further comprehension of the molecular and electronic structures of these particular diradical molecules with strong implications on the understanding of the nature of chemical bonds in the limits of high electronic correlation or π-conjugation.
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Affiliation(s)
- Samara Medina Rivero
- Department of Physical Chemistry, University of Málaga, Campus de Teatinos s/n, Málaga, 29071, Spain
| | - Paula Mayorga Burrezo
- Department of Physical Chemistry, University of Málaga, Campus de Teatinos s/n, Málaga, 29071, Spain
| | - María Eugenia Sandoval-Salinas
- 2IKERBASQUE - Basque Foundation for Science (DC) & Donostia, International Physics Center & Kimika Fakultatea Euskal Herriko Unibertsitatea (UPV/EHU), Paseo Manuel de Lardizabal, 4, 20018, Donostia-San Sebastián, Euskadi, Spain.,Departament de Ciència de Materials i Química Física, Institut de Química Teòrica i Computacional (IQTCUB), Universitat de Barcelona, Martí i Franquès 1-11, Barcelona, 08028, Spain
| | - Tao Li
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210093, China
| | - Francisco J Ramírez
- Department of Physical Chemistry, University of Málaga, Campus de Teatinos s/n, Málaga, 29071, Spain
| | - David Casanova
- 2IKERBASQUE - Basque Foundation for Science (DC) & Donostia, International Physics Center & Kimika Fakultatea Euskal Herriko Unibertsitatea (UPV/EHU), Paseo Manuel de Lardizabal, 4, 20018, Donostia-San Sebastián, Euskadi, Spain
| | - Xinping Wang
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210093, China
| | - Juan Casado
- Department of Physical Chemistry, University of Málaga, Campus de Teatinos s/n, Málaga, 29071, Spain
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31
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Ke XS, Hong Y, Lynch VM, Kim D, Sessler JL. Metal-Stabilized Quinoidal Dibenzo[g, p]chrysene-Fused Bis-dicarbacorrole System. J Am Chem Soc 2018; 140:7579-7586. [DOI: 10.1021/jacs.8b02718] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Xian-Sheng Ke
- Department of Chemistry, The University of Texas at Austin, Austin, Texas 78712-1224, United States
| | - Yongseok Hong
- Department of Chemistry, Yonsei University, Seoul 03722, Korea
| | - Vincent M. Lynch
- Department of Chemistry, The University of Texas at Austin, Austin, Texas 78712-1224, United States
| | - Dongho Kim
- Department of Chemistry, Yonsei University, Seoul 03722, Korea
| | - Jonathan L. Sessler
- Department of Chemistry, The University of Texas at Austin, Austin, Texas 78712-1224, United States
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32
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33
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Zeng W, Hong Y, Medina Rivero S, Kim J, Zafra JL, Phan H, Gopalakrishna TY, Herng TS, Ding J, Casado J, Kim D, Wu J. Stable Nitrogen-Centered Bis(imino)rylene Diradicaloids. Chemistry 2018; 24:4944-4951. [PMID: 29396877 DOI: 10.1002/chem.201706041] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2017] [Indexed: 12/11/2022]
Abstract
The synthesis of stable open-shell singlet diradicaloids is critical for their practical material application. So far, most reported examples are based on carbon-centered radicals, which are intrinsically reactive, and there are very few examples of stable nitrogen-centered diradicaloids. In this full paper, a series of soluble and stable bis(imino)rylenes up to octarylene were synthesized on the basis of newly developed dibromorylene intermediates. It was found that from hexarylene onward, these quinoidal rylenes showed open-shell singlet ground states and could be thermally populated to paramagnetic triplet aminyl diradicals. They are stable due to efficient spin delocalization onto the rylene backbone as well as kinetic blocking of the aminyl sites by the bulky and electron-deficient 2,4,6-trichlorophenyl groups. They exhibited very different electronic structures, diradical character, excited-state dynamics, one-photon absorption, two-photon absorption, and electrochemical properties from their respective aromatic rylene counterparts. These bis(imino)rylenes represent a rare class of stable, neutral, nitrogen-centered aminyl diradicaloids.
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Affiliation(s)
- Wangdong Zeng
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, 117543, Singapore, Singapore.,Institute of Materials Science and Engineering, Hunan University of Science and Technology, Xiangtan, 411201, P. R. China
| | - Yongseok Hong
- Spectroscopy Laboratory for Functional π-Electronic Systems and Department of Chemistry, Yonsei University, Seoul, 03722, Korea
| | - Samara Medina Rivero
- Department of Physical Chemistry, University of Malaga, Campus de Teatinos s/n, 229071, Malaga, Spain
| | - Jinseok Kim
- Spectroscopy Laboratory for Functional π-Electronic Systems and Department of Chemistry, Yonsei University, Seoul, 03722, Korea
| | - José L Zafra
- Department of Physical Chemistry, University of Malaga, Campus de Teatinos s/n, 229071, Malaga, Spain
| | - Hoa Phan
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, 117543, Singapore, Singapore
| | - Tullimilli Y Gopalakrishna
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, 117543, Singapore, Singapore
| | - Tun Seng Herng
- Department of Materials Science & Engineering, National University of Singapore, 119260, Singapore, Singapore
| | - Jun Ding
- Department of Materials Science & Engineering, National University of Singapore, 119260, Singapore, Singapore
| | - Juan Casado
- Department of Physical Chemistry, University of Malaga, Campus de Teatinos s/n, 229071, Malaga, Spain
| | - Dongho Kim
- Spectroscopy Laboratory for Functional π-Electronic Systems and Department of Chemistry, Yonsei University, Seoul, 03722, Korea
| | - Jishan Wu
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, 117543, Singapore, Singapore
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34
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Y Gopalakrishna T, Zeng W, Lu X, Wu J. From open-shell singlet diradicaloids to polyradicaloids. Chem Commun (Camb) 2018; 54:2186-2199. [PMID: 29423462 DOI: 10.1039/c7cc09949e] [Citation(s) in RCA: 177] [Impact Index Per Article: 29.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
In this Feature Article, we highlight our recent efforts toward stable open-shell singlet diradicaloids and polyradicaloids. A brief review on the historical works in the area is introduced first, followed by discussion on the fundamental electronic and physical properties of open-shell singlet diradicaloids. Then, the structure-diradical character relationships based on our recently developed diradicaloids are presented. Next, the challenges and solutions toward stable polyradicaloids and 3D π-conjugated diradicaloids are discussed. Finally, their preliminary material applications are introduced and a perspective view of the area is given.
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35
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Minamida Y, Kishi R, Fukuda K, Matsui H, Takamuku S, Yamane M, Tonami T, Nakano M. Tunability of Open-Shell Character, Charge Asymmetry, and Third-Order Nonlinear Optical Properties of Covalently Linked (Hetero)Phenalenyl Dimers. Chemistry 2018; 24:1913-1921. [PMID: 29193349 DOI: 10.1002/chem.201704679] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2017] [Indexed: 11/06/2022]
Abstract
Tunability of the open-shell character, charge asymmetry, and third-order nonlinear optical (NLO) properties of covalently linked (hetero)phenalenyl dimers are investigated by using the density functional theory method. By changing the molecular species X and substitution position (i, j) for the linker part, a variety of intermonomer distances R and relative alignments between the phenalenyl dimers can be realized from the geometry optimizations, resulting in a wide-range tuning of diradical character y and charge asymmetry. It is found that the static second hyperpolarizabilities along the stacking direction, γyyyy , are one-order enhanced for phenalenyl dimer systems exhibiting intermediate y, a feature that is in good agreement with the "y-γ correlation". By replacing the central carbon atoms of the phenalenyl rings with a boron or a nitrogen, we have also designed covalently linked heterophenalenyl dimers. The introduction of such a charge asymmetry to the open-shell systems, which leads to closed-shell ionic ground states, is found to further enhance the γyyyy values of the systems having longer intermonomer distance R with intermediate ionic character, that is, charge asymmetry. The present results demonstrate a promising potential of covalently linked NLO dimers with intermediate open-shell/ionic characters as a new building block of highly efficient NLO systems.
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Affiliation(s)
- Yuka Minamida
- Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama, Toyonaka, Osaka, 560-8531, Japan
| | - Ryohei Kishi
- Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama, Toyonaka, Osaka, 560-8531, Japan
| | - Kotaro Fukuda
- Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama, Toyonaka, Osaka, 560-8531, Japan
| | - Hiroshi Matsui
- Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama, Toyonaka, Osaka, 560-8531, Japan
| | - Shota Takamuku
- Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama, Toyonaka, Osaka, 560-8531, Japan
| | - Masaki Yamane
- Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama, Toyonaka, Osaka, 560-8531, Japan
| | - Takayoshi Tonami
- Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama, Toyonaka, Osaka, 560-8531, Japan
| | - Masayoshi Nakano
- Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama, Toyonaka, Osaka, 560-8531, Japan.,Center for Spintronics Research Network (CSRN), Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka, 560-8531, Japan
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36
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Jiang C, Bang Y, Wang X, Lu X, Lim Z, Wei H, El-Hankari S, Wu J, Zeng Z. Tetrabenzo-Chichibabin's hydrocarbons: substituent effects and unusual thermochromic and thermomagnetic behaviours. Chem Commun (Camb) 2018; 54:2389-2392. [DOI: 10.1039/c8cc00378e] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
A series of new Chichibabin's hydrocarbons was studied, and a cationic ammonium substituted product was obtained, showing unusual thermochromic and thermomagnetic behaviours.
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Affiliation(s)
- Chuanling Jiang
- State Key Laboratory of Chemo/Biosensing and Chemometrics
- Hunan University
- Changsha 410082
- P. R. China
| | - Yawen Bang
- State Key Laboratory of Chemo/Biosensing and Chemometrics
- Hunan University
- Changsha 410082
- P. R. China
| | - Xinhao Wang
- State Key Laboratory of Chemo/Biosensing and Chemometrics
- Hunan University
- Changsha 410082
- P. R. China
| | - Xuefeng Lu
- Department of Chemistry
- National University of Singapore
- Singapore
| | - Zhenglong Lim
- Department of Chemistry
- National University of Singapore
- Singapore
| | - Haipeng Wei
- State Key Laboratory of Chemo/Biosensing and Chemometrics
- Hunan University
- Changsha 410082
- P. R. China
| | - Samir El-Hankari
- State Key Laboratory of Chemo/Biosensing and Chemometrics
- Hunan University
- Changsha 410082
- P. R. China
| | - Jishan Wu
- Department of Chemistry
- National University of Singapore
- Singapore
| | - Zebing Zeng
- State Key Laboratory of Chemo/Biosensing and Chemometrics
- Hunan University
- Changsha 410082
- P. R. China
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37
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Zeng W, Qi Q, Wu J. Toward Long Rylene Ribbons and Quinoidal Rylene Diradicaloids. European J Org Chem 2017. [DOI: 10.1002/ejoc.201701352] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Wangdong Zeng
- Department of Chemistry; National University of Singapore; 3 Science Drive 3 117543 Singapore
| | - Qingbiao Qi
- Department of Chemistry; National University of Singapore; 3 Science Drive 3 117543 Singapore
| | - Jishan Wu
- Department of Chemistry; National University of Singapore; 3 Science Drive 3 117543 Singapore
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38
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39
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Lu X, Lee S, Hong Y, Phan H, Gopalakrishna TY, Herng TS, Tanaka T, Sandoval-Salinas ME, Zeng W, Ding J, Casanova D, Osuka A, Kim D, Wu J. Fluorenyl Based Macrocyclic Polyradicaloids. J Am Chem Soc 2017; 139:13173-13183. [DOI: 10.1021/jacs.7b07335] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Xuefeng Lu
- Department
of Chemistry, National University of Singapore, 3 Science Drive 3, 117543 Singapore
| | - Sangsu Lee
- Spectroscopy
Laboratory for Functional π-Electronic Systems and Department
of Chemistry, Yonsei University, Seoul 03722, Korea
| | - Yongseok Hong
- Spectroscopy
Laboratory for Functional π-Electronic Systems and Department
of Chemistry, Yonsei University, Seoul 03722, Korea
| | - Hoa Phan
- Department
of Chemistry, National University of Singapore, 3 Science Drive 3, 117543 Singapore
| | | | - Tun Seng Herng
- Department of Materials Science & Engineering, National University of Singapore, 119260 Singapore
| | - Takayuki Tanaka
- Department
of Chemistry, Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan
| | - María Eugenia Sandoval-Salinas
- Departament
de Ciència de Materials i Química Física, Institut
de Química Teòrica i Computacional (IQTCUB), Universitat de Barcelona, Martí i Franquès 1-11, Barcelona 08028, Spain
- Kimika Fakultatea, Euskal Herriko Unibertsitatea & Donostia International Physics Center, Paseo Manuel de Lardizabal, 4, 20018 Donostia-San Sebastián, Euskadi, Spain
| | - Wangdong Zeng
- Department
of Chemistry, National University of Singapore, 3 Science Drive 3, 117543 Singapore
| | - Jun Ding
- Department of Materials Science & Engineering, National University of Singapore, 119260 Singapore
| | - David Casanova
- Kimika Fakultatea, Euskal Herriko Unibertsitatea & Donostia International Physics Center, Paseo Manuel de Lardizabal, 4, 20018 Donostia-San Sebastián, Euskadi, Spain
- IKERBASQUE - Basque Foundation for Science, Bilbao 48013, Euskadi, Spain
| | - Atsuhiro Osuka
- Department
of Chemistry, Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan
| | - Dongho Kim
- Spectroscopy
Laboratory for Functional π-Electronic Systems and Department
of Chemistry, Yonsei University, Seoul 03722, Korea
| | - Jishan Wu
- Department
of Chemistry, National University of Singapore, 3 Science Drive 3, 117543 Singapore
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40
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Hashimoto S, Yabushita A, Iwakura I. Transient process spectroscopy for the direct observation of inter-molecular photo-dissociation. STRUCTURAL DYNAMICS (MELVILLE, N.Y.) 2017; 4:054901. [PMID: 28580369 PMCID: PMC5433884 DOI: 10.1063/1.4983639] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/13/2017] [Accepted: 05/04/2017] [Indexed: 06/07/2023]
Abstract
Transient process spectroscopy has previously been thought to be applicable only to the analysis of intra-molecular processes. Two metal ion bridges used in the present work have allowed us to visualize real-time variations of the molecular vibration frequencies during photo-disproportionation inside bimolecule aggregates, which directly shows transient inter-molecular reactions.
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Affiliation(s)
- Sena Hashimoto
- Department of Applied Chemistry, Graduate School of Engineering, Kanagawa University, 3-27-1 Rokkakubashi, Yokohama 221-8686, Japan
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41
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Casado J. Para-Quinodimethanes: A Unified Review of the Quinoidal-Versus-Aromatic Competition and its Implications. Top Curr Chem (Cham) 2017; 375:73. [PMID: 28762218 DOI: 10.1007/s41061-017-0163-2] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2017] [Accepted: 07/17/2017] [Indexed: 10/19/2022]
Abstract
In this article, some quinoidal p-quinodimethanes compounds that convert partially or completely to diradicals or biradicaloids are analyzed. The aromatic/quinoidal balance is revisited with the objective of providing a common interpretation for most of them. For that purpose, important structural and energetic parameters such as the bond length alternation pattern and the singlet-triplet gaps are analyzed and interpreted in the framework of double spin polarization and π-conjugation. p-Quinodimethanes based in oligothiophenes, polycyclic aromatic hydrocarbons, oligophenylenes, thienothiophenes, charged dications and cyclic conjugated molecules are discussed. There are excellent reviews in the field of singlet diradicals; however, a revision similar to that proposed here can help the reader to have another perspective on these promising new functional materials. The focus has been put on molecules which are well known by the author and another of relevance in the field. In this regard, the article finishes with a discussion of some important applications of these diradicals in organic electronics. New chemical systems based on the p-quinodimethane building blocks are waiting us around the corner, bringing us new and challenging structures and fascinating novel properties, which describe a very rich field of research in chemistry and in physics with an excellent present and a bright future.
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Affiliation(s)
- Juan Casado
- Department of Physical Chemistry, Faculty of Science, University of Málaga, Campus de Teatinos s/n, 29071, Málaga, Spain.
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42
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Souto M, Calbo J, Ratera I, Ortí E, Veciana J. Tetrathiafulvalene-Polychlorotriphenylmethyl Dyads: Influence of Bridge and Open-Shell Characteristics on Linear and Nonlinear Optical Properties. Chemistry 2017; 23:11067-11075. [DOI: 10.1002/chem.201701623] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2017] [Indexed: 11/10/2022]
Affiliation(s)
- Manuel Souto
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC)/CIBER-BBN; Campus Universitari de la UAB; 08193 Bellaterra Spain
| | - Joaquín Calbo
- Instituto de Ciencia Molecular; Universidad de Valencia; 46980 Paterna Spain
| | - Imma Ratera
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC)/CIBER-BBN; Campus Universitari de la UAB; 08193 Bellaterra Spain
| | - Enrique Ortí
- Instituto de Ciencia Molecular; Universidad de Valencia; 46980 Paterna Spain
| | - Jaume Veciana
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC)/CIBER-BBN; Campus Universitari de la UAB; 08193 Bellaterra Spain
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Wang Q, Gopalakrishna TY, Phan H, Herng TS, Dong S, Ding J, Chi C. Cyclopenta Ring Fused Bisanthene and Its Charged Species with Open-Shell Singlet Diradical Character and Global Aromaticity/ Anti-Aromaticity. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201704805] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Qing Wang
- Department of Chemistry; National University of Singapore; 3 Science Drive 3 117543 Singapore Singapore
| | | | - Hoa Phan
- Department of Chemistry; National University of Singapore; 3 Science Drive 3 117543 Singapore Singapore
| | - Tun Seng Herng
- Department of Materials Science and Engineering; National University of Singapore; 119260 Singapore Singapore
| | - Shaoqiang Dong
- Department of Chemistry; National University of Singapore; 3 Science Drive 3 117543 Singapore Singapore
| | - Jun Ding
- Department of Materials Science and Engineering; National University of Singapore; 119260 Singapore Singapore
| | - Chunyan Chi
- Department of Chemistry; National University of Singapore; 3 Science Drive 3 117543 Singapore Singapore
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Wang Q, Gopalakrishna TY, Phan H, Herng TS, Dong S, Ding J, Chi C. Cyclopenta Ring Fused Bisanthene and Its Charged Species with Open-Shell Singlet Diradical Character and Global Aromaticity/ Anti-Aromaticity. Angew Chem Int Ed Engl 2017; 56:11415-11419. [DOI: 10.1002/anie.201704805] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2017] [Indexed: 11/10/2022]
Affiliation(s)
- Qing Wang
- Department of Chemistry; National University of Singapore; 3 Science Drive 3 117543 Singapore Singapore
| | | | - Hoa Phan
- Department of Chemistry; National University of Singapore; 3 Science Drive 3 117543 Singapore Singapore
| | - Tun Seng Herng
- Department of Materials Science and Engineering; National University of Singapore; 119260 Singapore Singapore
| | - Shaoqiang Dong
- Department of Chemistry; National University of Singapore; 3 Science Drive 3 117543 Singapore Singapore
| | - Jun Ding
- Department of Materials Science and Engineering; National University of Singapore; 119260 Singapore Singapore
| | - Chunyan Chi
- Department of Chemistry; National University of Singapore; 3 Science Drive 3 117543 Singapore Singapore
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Gu J, Wu W, Danovich D, Hoffmann R, Tsuji Y, Shaik S. Valence Bond Theory Reveals Hidden Delocalized Diradical Character of Polyenes. J Am Chem Soc 2017; 139:9302-9316. [DOI: 10.1021/jacs.7b04410] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Junjing Gu
- The
State Key Laboratory of Physical Chemistry of Solid Surfaces, iChEM, Fujian Provincial Key Laboratory of Theoretical and
Computational Chemistry and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, China
| | - Wei Wu
- The
State Key Laboratory of Physical Chemistry of Solid Surfaces, iChEM, Fujian Provincial Key Laboratory of Theoretical and
Computational Chemistry and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, China
| | - David Danovich
- Department
of Organic Chemistry and the Lise Meitner-Minerva Centre for Computational
Quantum Chemistry, The Hebrew University, Jerusalem 91904, Israel
| | - Roald Hoffmann
- Baker Laboratory, Department of Chemistry
and Chemical Biology, Cornell University, Ithaca, New York 14853, United States
| | - Yuta Tsuji
- Education
Center for Global Leaders in Molecular Systems for Devices, Kyushu University, Nishi-ku, Fukuoka 819-0395, Japan
| | - Sason Shaik
- Department
of Organic Chemistry and the Lise Meitner-Minerva Centre for Computational
Quantum Chemistry, The Hebrew University, Jerusalem 91904, Israel
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47
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Wei H, Zhang L, Phan H, Huang X, Herng TS, Zhou J, Zeng W, Ding J, Luo S, Wu J, Zeng Z. A Stable N
-Annulated Perylene-Bridged Bisphenoxyl Diradicaloid and the Corresponding Boron Trifluoride Complex. Chemistry 2017; 23:9419-9424. [DOI: 10.1002/chem.201701692] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2017] [Indexed: 01/02/2023]
Affiliation(s)
- Haipeng Wei
- State Key Laboratory for Chemo/Biosensing and Chemometrics; College of Chemistry and Chemical Engineering, Hunan University; Changsha 410082 P. R. China
| | - Liyan Zhang
- State Key Laboratory for Chemo/Biosensing and Chemometrics; College of Chemistry and Chemical Engineering, Hunan University; Changsha 410082 P. R. China
| | - Hoa Phan
- Department of Chemistry; National University of Singapore; 3 Science Drive 3 117543 Singapore Singapore
| | - Xiaobo Huang
- College of Chemistry and Materials Engineering; Wenzhou University; Wenzhou 325035 P. R. China
| | - Tun Seng Herng
- Department of Materials Science and Engineering; National University of Singapore; 119260 Singapore
| | - Jun Zhou
- State Key Laboratory for Chemo/Biosensing and Chemometrics; College of Chemistry and Chemical Engineering, Hunan University; Changsha 410082 P. R. China
| | - Wangdong Zeng
- Department of Chemistry; National University of Singapore; 3 Science Drive 3 117543 Singapore Singapore
| | - Jun Ding
- Department of Materials Science and Engineering; National University of Singapore; 119260 Singapore
| | - Shenglian Luo
- College of Environmental and Engineering; Nanchang Hangkong University; Nanchang 330063 P. R. China
| | - Jishan Wu
- Department of Chemistry; National University of Singapore; 3 Science Drive 3 117543 Singapore Singapore
| | - Zebing Zeng
- State Key Laboratory for Chemo/Biosensing and Chemometrics; College of Chemistry and Chemical Engineering, Hunan University; Changsha 410082 P. R. China
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Liu X, He B, Anderson CL, Kang J, Chen T, Chen J, Feng S, Zhang L, Kolaczkowski MA, Teat SJ, Brady MA, Zhu C, Wang LW, Chen J, Liu Y. para-Azaquinodimethane: A Compact Quinodimethane Variant as an Ambient Stable Building Block for High-Performance Low Band Gap Polymers. J Am Chem Soc 2017; 139:8355-8363. [DOI: 10.1021/jacs.7b04031] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Xuncheng Liu
- Institute of Polymer Optoelectronic Materials & Devices, State Key Laboratory of Luminescent Materials & Devices, South China University of Technology, Guangzhou 510640, P.R. China
| | | | - Christopher L. Anderson
- Department
of Chemistry, University of California, Berkeley, Berkeley, California 94720, United States
| | | | | | - Jinxiang Chen
- Institute of Polymer Optoelectronic Materials & Devices, State Key Laboratory of Luminescent Materials & Devices, South China University of Technology, Guangzhou 510640, P.R. China
| | - Shizhen Feng
- Institute of Polymer Optoelectronic Materials & Devices, State Key Laboratory of Luminescent Materials & Devices, South China University of Technology, Guangzhou 510640, P.R. China
| | - Lianjie Zhang
- Institute of Polymer Optoelectronic Materials & Devices, State Key Laboratory of Luminescent Materials & Devices, South China University of Technology, Guangzhou 510640, P.R. China
| | - Matthew A. Kolaczkowski
- Department
of Chemistry, University of California, Berkeley, Berkeley, California 94720, United States
| | | | | | | | | | - Junwu Chen
- Institute of Polymer Optoelectronic Materials & Devices, State Key Laboratory of Luminescent Materials & Devices, South China University of Technology, Guangzhou 510640, P.R. China
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Qi Q, Burrezo PM, Phan H, Herng TS, Gopalakrishna TY, Zeng W, Ding J, Casado J, Wu J. Ambient Stable Radical Cations, Diradicaloid π-Dimeric Dications, Closed-Shell Dications, and Diradical Dications of Methylthio-Capped Rylenes. Chemistry 2017; 23:7595-7606. [DOI: 10.1002/chem.201701102] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2017] [Indexed: 11/11/2022]
Affiliation(s)
- Qingbiao Qi
- Department of Chemistry; National University of Singapore; 3 Science Drive 3 117543 Singapore
| | - Paula Mayorga Burrezo
- Department of Physical Chemistry; University of Malaga, Campus de Teatinos s/n; 229071 Malaga Spain
| | - Hoa Phan
- Department of Chemistry; National University of Singapore; 3 Science Drive 3 117543 Singapore
| | - Tun Seng Herng
- Department of Materials Science and Engineering; National University of Singapore; 119260 Singapore
| | | | - Wangdong Zeng
- Department of Chemistry; National University of Singapore; 3 Science Drive 3 117543 Singapore
| | - Jun Ding
- Department of Materials Science and Engineering; National University of Singapore; 119260 Singapore
| | - Juan Casado
- Department of Physical Chemistry; University of Malaga, Campus de Teatinos s/n; 229071 Malaga Spain
| | - Jishan Wu
- Department of Chemistry; National University of Singapore; 3 Science Drive 3 117543 Singapore
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50
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