Article
Polymer Science
Serra E. Ozturk, Recep Isci, Sheida Faraji, Berkay Sutay, Leszek A. Majewski, Turan Ozturk
Summary: Novel conjugated donor-pi-acceptor-pi (D-pi-A-pi) type polymers (P1-P3) with thieno[3,2-b]thiophene (TT) as donors, benzo[1-3]thiadiazole (BT) as an acceptor, and thiophene as a pi-linker, were synthesized via palladium-catalyzed Stille coupling reaction. These polymers exhibited a remarkable mega Stokes shift, optic/electronic band gaps between 1.70 and 2.00 eV, and good thermal stability. The dimethylamine substituted P3 showed the highest average saturated hole mobility, on/off current ratio, and the smallest subthreshold swing among similar p-type D-pi-A-pi semiconducting polymers reported in the literature. These novel TT-BT polymers have promising potential for electronic and optoelectronic applications.
EUROPEAN POLYMER JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Qing Chang, Tao Ma, Wei Ding, Lin Zhang, Xiaohong Cheng
Summary: Bolaamphiphilies with D-A-D type pi-conjugated rigid cores composed of thiophenes and benzothiadiazole can self-assemble into ordered nanostructures and have absorption spectra covering the entire visible light range with relatively low band gaps. The influence of molecular conformation, conjugated core length, and D/A ratio on their self-assembly and photophysical characteristics is discussed.
SUPRAMOLECULAR CHEMISTRY
(2021)
Article
Chemistry, Physical
Xiaohui Wang, Yiwei Liu, Xing Feng
Summary: This article presents two D-A-D type benzothiadiazole-based molecules with color-tunable emission, but they exhibit ACQ characteristic due to the strong influence of molecular aggregation.
JOURNAL OF MOLECULAR STRUCTURE
(2022)
Article
Chemistry, Applied
Rafaela Gomes Martins da Costa, Rafael dos Santos Carvalho, Victoria Goulart Isoppo, Arthur Rodrigues Jardim Barreto, Marlin Jeannette Pedrozo Penafiel, Aline Magalhaes dos Santos, Davi Back, Ricardo Queiroz Aucelio, Marco Cremona, Fabiano Severo Rodembusch, Jones Limberger
Summary: Two analogs of AIEEgen, BTD-CH-TPA and BTD-FL, were synthesized and showed fluorescence ranging from cyan-green to yellow in solution. However, intense fluorescence was observed in the solid state for both BTD-CH and its analogs. The outstanding AIEE effect of BTD-CH is attributed to its twisted conformation and the hindrance of deleterious π-π interactions by the bent aryloxy group.
Article
Chemistry, Applied
Dong Kyun You, Mingi Kim, Sanghee Yi, Yung Ju Seo, Wonchul Lee, Kang Mun Lee
Summary: In this study, three novel carboline-based benzothiadiazole compounds were synthesized and characterized. The compounds exhibited solvatochromic effects in different organic solvents and showed potential application prospects. The charge transfer transition mechanism of the compounds was investigated, and it was found that alpha CB had higher emissive efficiency and lower nonradiative decay compared to beta CB and gamma CB. Additionally, the crystalline powders of alpha CB displayed a high-contrast and reversible mechanochromic phenomenon.
Article
Polymer Science
Zhujun Gao, Fei Zhao, Shouli Ming, Yan Zhang, Jinsheng Zhao
Summary: Two donor-acceptor (D-A) type conjugated porous polymers (CPPs), P(TPA-TBTh) and P(TPA-F-TBTh), were synthesized on ITO glass electrodes through Stille coupling reaction under solvothermal conditions. The CPPs exhibited ambipolar properties in electrochromic switching and showed different morphologies. The introduction of fluorine atoms onto the polymer skeleton reduced the energy levels and band gap, resulting in a lower band gap for P(TPA-F-TBTh). Additionally, the non-fluorinated and di-fluorinated CPPs exhibited different electrochromic kinetic properties. These D-A type CPPs provide new designs for multicolor electrochromic materials with ambipolar properties and rare green reduction states.
Article
Biochemistry & Molecular Biology
Dorota Zajac, Damian Honisz, Mieczyslaw Lapkowski, Jadwiga Soloducho
Summary: Small-donor molecules 2,1,3-benzothiadiazole derivatives (2a-d) were designed and synthesized through Stille or Suzuki reaction, showing wide light absorption range, emitting light from green to red/near IR, narrow energy gap, and high Ea values, proving their electron-donating nature and semiconductor properties. The measurements were further supported by theoretical modeling.
Article
Chemistry, Applied
Victoria G. Isoppo, Fabiano S. Rodembusch, Angelica V. Moro
Summary: The present study describes the synthesis of mono-silylated benzothiadiazole compounds and their use in obtaining organic-inorganic fluorescent hybrid materials. These compounds were obtained through Sonogashira coupling reaction and demonstrated UV-A absorption and green-blue fluorescence emission. The mono-silylated BTD compounds were used as precursors for the synthesis of new organic-inorganic hybrid materials through sol-gel reaction, resulting in materials with low BTD content and green-blue fluorescence emission.
Article
Chemistry, Multidisciplinary
Alexis Tigreros, Camilo Bedoya-Malagon, Alejandra Valencia, Mayerlin Nunez-Portela, Jaime Portilla
Summary: In this study, a novel tris(4-(2,2-difluoro-6-methyl-2H-1 lambda(3),3,2 lambda(4)-dioxaborinin-4-yl)phenyl)amine trimeric probe (A2) was synthesized via a one-pot reaction, demonstrating twelve new bond formations. A2 exhibited high fluorescence in solution (phi up to 0.91 at 572 nm) and solid state (phi = 0.24 at 571 nm), with better solvatofluorochromism compared to its analog monomeric A1. Additionally, A2 showed high sensitivity and selectivity for CN- or F- in solution and could differentiate between CN- and F- through a reaction with CN-. Moreover, A2 was utilized in test strips for naked-eye qualitative sensing of CN- or F-, and its octupolar structure allowed for better two-photon excitation cross-section values compared to the dipolar structure of A1. These findings contribute to the design of efficient two-photon absorption dyes.
Article
Optics
Rafaela Gomes Martins da Costa, Rafael de Queiroz Garcia, Raquel Mazzoli da R. Fiuza, Luis Maqueira, Alessandra Pazini, Leonardo de Boni, Jones Limberger
Summary: Hybrids containing both chalcone and benzothiadiazole moieties were synthesized and characterized for their photophysical properties. The compounds exhibited absorption maxima ranging from 384 to 408 nm and high extinction coefficient values. Some hybrids showed aggregation-induced enhanced emission properties, with a significant increase in fluorescence intensity and quantum yields observed upon aggregation.
JOURNAL OF LUMINESCENCE
(2021)
Article
Electrochemistry
Maria Makarova, Alexander Akkuratov, Maxim E. Sideltsev, Keith J. Stevenson, Elena Romadina
Summary: In this study, two novel organic molecules were synthesized and evaluated as anolytes in nonaqueous all organic redox flow batteries. These molecules exhibited improved performance compared to their unsubstituted counterparts, with lower redox potentials, increased solubility, reduced permeability, and higher stability.
Article
Biochemistry & Molecular Biology
Nikita S. Gudim, Ekaterina A. Knyazeva, Ludmila V. Mikhalchenko, Ivan S. Golovanov, Vadim V. Popov, Natalia V. Obruchnikova, Oleg A. Rakitin
Summary: This paper presents an improved synthesis of 4,7-dibromobenzo[d][1,2,3]thiadiazole from commercially available reagents. The study revealed that cross-coupling reactions of this dibromide via the Stille reaction yielded the highest yields of compounds of interest. By investigating the optical and electrochemical properties of the obtained compounds, it was found that careful selection of components with benzo[d][1,2,3]thiadiazole as an internal acceptor could lead to promising photovoltaic materials.
Article
Chemistry, Multidisciplinary
Weidan Na, Lei An, Qiong Wu, Keying Cai, Changjin Ou, Wenchang Zhuang
Summary: In this study, two D-A conjugated organic fluorophores based on sulfone or carbonyl-based acceptor units were synthesized. These fluorophores showed solvent polarity-dependent photophysical properties, with high fluorescence efficiency suitable for cellular fluorescence imaging.
CHEMISTRY-A EUROPEAN JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Dong Yang, Shuanglong Li
Summary: This contribution reports the design and synthesis of two N,O-bidentate BF2 dyes with excellent optical properties. The dyes exhibit large Stokes shifts, strong solvatofluorochromism, and bright emission in various states. The incorporation of a triphenylamine unit as a donor and a NBF2O moiety as an acceptor result in a push-pull electron system. The introduction of a thiophene unit further extends pi-conjugation and leads to a red-shift of absorption/emission wavelengths. The dyes demonstrate high fluorescence quantum yields in nonpolar solvents and aggregation-induced emission properties in THF/H2O mixtures with high water fractions, showing bright solid-state emission.
NEW JOURNAL OF CHEMISTRY
(2023)
Article
Chemistry, Inorganic & Nuclear
Guowei Liu, Qiumei Guo, Bingcheng Huang, Xinqiao Guan, Qiuhao Ye, Xuemei Zhuang, Yiru Peng
Summary: Three novel fluorinated/non-fluorinated triphenylamine axially substituted silicon phthalocyanines were synthesized, showing typical emissions for SiPc and TPA moieties. Their photophysical and photochemical properties were affected by both the fluorinate-bisphenol A substitutions and TPA substitutions. Among them, TPA-FBPA-SiPc with both substitutions exhibited the highest fluorescence intensity, quantum yield, and singlet oxygen yield.
INORGANIC CHEMISTRY COMMUNICATIONS
(2022)
Article
Chemistry, Applied
Leping Chen, Yanfen Wang, Tingyu Shi, Tiantian Ma, Yang Li, Huayu Qiu, Shouchun Yin, Meier Gu
Summary: This study successfully overcame the limitations of the heavy atom effect by introducing iodine atoms and innovatively enhancing the structure while weakening stacking behavior, achieving high efficiency and precision in photodynamic therapy and photothermal therapy.
Article
Chemistry, Applied
Bingpeng Guo, Honghan Sa, Peng Zhang, Guiwen Hao, Mengyu Li, Qingqing Jiang, Baoying Li, Wei Shu, Changxiang Shao
Summary: The design of ratiometric fluorescence probes with large Stokes shift is of great significance in detecting and imaging target substances in complex organisms. In this study, a novel fluorophore with a large Stokes shift was easily obtained, and a fluorescence probe based on it demonstrated rapid response, high selectivity, and sensitivity towards peroxynitrite. The probe also showed excellent biocompatibility and remarkable mitochondrial targeting ability, making it suitable for proportional imaging of peroxynitrite in living cells and zebrafish.
Review
Chemistry, Applied
Haidong Huang, Xiaohui Wang, Xinyang Li, Yichen Li, Guojin Liu, Lan Zhou, Jianzhong Shao
Summary: This article introduces the application of responsive photonic crystals in anti-counterfeiting technology, with a focus on the preparation principle, classification, and preparation methods.
Article
Chemistry, Applied
Yunpeng Wang, Tao Zhao, Xiaoye Bi, Chencheng Lv
Summary: In this study, three novel carbene dyes were designed to achieve environmentally friendly dyeing processes. The dyes formed covalent bonds with fibers and exhibited good dyeing performance and high color fastness. These findings highlight the potential of the novel carbene dyes in promoting green production in the textile industry.
Review
Chemistry, Applied
Yizhe Yan, Xiaopei Zhu, Jia-Xin Cao, Yuan He, Shaoqing Li, Jian-Yong Wang
Summary: In this paper, 1,3,5-triazine dyes were successfully synthesized and their photophysical properties were studied. Two probes were selected for further investigation, showing promising applications in various fields.
Article
Chemistry, Applied
Xin Hu, Tongsheng Huang, Lihua Chen, Weifeng Zhu, Fengjie Deng, Xiancai Li, Jianwen Tian, Meiying Liu, Xiaoyong Zhang, Yen Wei
Summary: This study presents the synthesis of fluorescent cyclomatrix polyphosphazene spheres with aggregation-induced emission (AIE) feature and biodegradable potential for controlled drug delivery. The resulting micelles exhibit high water dispersibility, desirable fluorescence performance, and high drug loading capacity. They can effectively release the encapsulated drug in physiological solution and show excellent biological imaging ability and cytotoxicity against cancer cells.
Article
Chemistry, Applied
Yanzhu Liu, Yanghui Lei, Dongyan Li, Guangkui Li, Dongping Li, Yongxiu Li
Summary: In this study, luminescent lanthanide nanoparticles were synthesized as a dual emission turn-off probe for detecting 2,6-pyridinedicarboxylic acid (DPA) in water. The nanoparticles showed good dispersion and water stability, and achieved low detection limits for DPA. They also exhibited high recoveries in various samples.
Article
Chemistry, Applied
Jung Jae Do, Jong Ryeol Kwon, Donghan Kim, Jae Woong Jung
Summary: This study presents a defect passivation approach using coumarin dye as a multi-functional passivating agent of perovskite films to boost power conversion efficiency and operating stability of PSCs. The incorporation of coumarin dye improves the film morphology, enhances carrier extraction/transport, and suppresses trap-assisted recombination in the perovskite films. The optimized device demonstrates impressive reliability and practical applicability, maintaining over 90% of its initial PCE after being exposed to continuous indoor lighting irradiation for 2000 hours.
Article
Chemistry, Applied
Gang Wang, Yu-Chang Wang, Jing Lu, Wen-Fu Yan, Juan Jin, Yuan-Peng Wang, Jia-Jia Zhang, Hui-Jie Zhang, Hao Dong, Xi-Guang Liu
Summary: A new Ni(II) compound with good solid-state fluorescence performance and stability was synthesized, and it showed outstanding detection properties for various substances in aqueous solutions. This compound has the potential to be a multifunctional sensor.
Article
Chemistry, Applied
Luyao Wei, Shenglong Shang, Yu Zheng, Jie Liu, Ping Zhu
Summary: This study developed a facile method to create high saturation and durable structural colors on cotton fabrics. The colors are regulated by adjusting the size of magnetic particles and can be conveniently printed on fabrics using photo masks on transparent films.
Article
Chemistry, Applied
Zhao Jiang, Qing Zhang, Zhaoyu Kong, Ruijie Qiao, Zichuan Liu, Linzhou Song, Senqiang Zhu, Rui Liu, Hongjun Zhu
Summary: Three heteroleptic Ir(III) complexes with different electron-donating aryl groups were synthesized and their optical properties were investigated. It was found that all three complexes exhibited aggregation-induced phosphorescence emission (AIPE) behaviors, and the relationship between the size of organic ligands and AIPE behaviors was characterized. Ir-PhCz showed the best imaging of latent fingerprints due to its green light emission and high quantum yield.
Article
Chemistry, Applied
Zhijun Ruan, Chunxia Fan, Xuanrong Wang, Dong Shao, Xiaodong Yang, Wentao He, Tao Xu, Junqi Lin, Zhengfang Tian
Summary: A novel thioketal-based probe has been designed for rapid and accurate detection of mercury (II) ions, showing different fluorescence characteristics in various states. The probe exhibits excellent selectivity and specificity, making it suitable for Hg2+ detection in water solutions.
Article
Chemistry, Applied
Jianjun Huang, Xuan Zhao, Daniel Escudero, Luc Van Meervelt, Dongbin Zheng, Yuyu Fang, Wim Dehaen
Summary: A series of BOAHY compounds were successfully synthesized and showed versatile applications as a platform for designing novel fluorescent probes, especially in selective recognition.
Article
Chemistry, Applied
Roman V. Larkovich, Victoria E. Shambalova, Savva A. Ponomarev, Alexander S. Aldoshin, Boris N. Tarasevich, Konstantin A. Lyssenko, Valentine G. Nenajdenko
Summary: An efficient synthetic protocol for the preparation of novel 1,7-difluorinated BODIPYs was elaborated. Their photophysical properties were studied and the effect of 2,6-substituents was evaluated using DFT calculations.
Article
Chemistry, Applied
Haneul Kim, Byungjin Koo
Summary: In this study, a lithium ion sensing methodology based on fluorinated naphthalene compounds using 19F NMR and UV-vis spectroscopy is reported. The binding of lithium ions to the compounds is confirmed by changes in chemical shifts and peak broadening. Additionally, the effect of different crown ether ring sizes on the binding ability is observed. This study provides a new method for lithium ion sensing using spectroscopy.