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Journal articles on the topic 'Electron donating moieties'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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1

Gudeika, D., R. Lygaitis, V. Mimaitė, et al. "Hydrazones containing electron-accepting and electron-donating moieties." Dyes and Pigments 91, no. 1 (2011): 13–19. http://dx.doi.org/10.1016/j.dyepig.2011.02.002.

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2

Rillema, D. Paul, Stanislav R. Stoyanov, Arvin J. Cruz, et al. "HOMO–LUMO energy gap control in platinum(ii) biphenyl complexes containing 2,2′-bipyridine ligands." Dalton Transactions 44, no. 39 (2015): 17075–90. http://dx.doi.org/10.1039/c5dt01891a.

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3

Kajjam, Aravind Babu, Santanb Giri та Sivakumar V. "Triphenylamine-based donor–π–acceptor organic phosphors: synthesis, characterization and theoretical study". Materials Chemistry Frontiers 1, № 3 (2017): 512–20. http://dx.doi.org/10.1039/c6qm00031b.

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4

Sugihara, Yoshiaki, Naoto Inai, Masayasu Taki, et al. "Donor–acceptor–acceptor-type near-infrared fluorophores that contain dithienophosphole oxide and boryl groups: effect of the boryl group on the nonradiative decay." Chemical Science 12, no. 18 (2021): 6333–41. http://dx.doi.org/10.1039/d1sc00827g.

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Combination of electron-accepting diarylboryl terminal groups and dithienophosphole oxide spacers with electron-donating triarylamine moieties produces donor–acceptor–acceptor type π-systems, which exhibit emissions in the near-infrared region.

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5

Zhang, Jianquan, Yunke Li, Zhengxing Peng, et al. "Near-infrared electron acceptors with fused nonacyclic molecular backbones for nonfullerene organic solar cells." Materials Chemistry Frontiers 4, no. 6 (2020): 1729–38. http://dx.doi.org/10.1039/c9qm00754g.

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6

Adineh, Maryam, Pooya Tahay, Wei-Kai Huang, Hui-Ping Wu, Eric Wei-Guang Diau, and Nasser Safari. "Synthesis of push–pull porphyrin dyes with dimethylaminonaphthalene electron-donating groups and their application to dye-sensitized solar cells." RSC Advances 6, no. 105 (2016): 102979–83. http://dx.doi.org/10.1039/c6ra23882c.

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Two new donor–π-bridge–acceptor zinc porphyrins with dimethylaminonaphthalene electron donating moieties, coded T1 and T2, were synthesized and used as sensitizers in dye sensitized solar cells (DSSCs).

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7

Kirner, Sabrina V., Christian Henkel, Dirk M. Guldi, Jackson D. Megiatto Jr, and David I. Schuster. "Multistep energy and electron transfer processes in novel rotaxane donor–acceptor hybrids generating microsecond-lived charge separated states." Chemical Science 6, no. 12 (2015): 7293–304. http://dx.doi.org/10.1039/c5sc02895g.

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A new set of [Cu(phen)<sub>2</sub>]<sup>+</sup> based rotaxanes, featuring [60]-fullerene as an electron acceptor and a variety of electron donating moieties, namely zinc porphyrin (ZnP), zinc phthalocyanine (ZnPc) and ferrocene (Fc), has been synthesized and fully characterized.

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8

Madsen, Rasmus S. K., Sounak Sarkar, Bo Brummerstedt Iversen, and Yuanzheng Yue. "Sensitivity of the glass transition and melting in a metal–organic framework to ligand chemistry." Chemical Communications 58, no. 6 (2022): 823–26. http://dx.doi.org/10.1039/d1cc03541j.

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The effect of substituting linkers with electron-donating moieties for part of the conventional ones on the melting and glass transition behaviours of ZIF-62 was investigated by calorimetry and X-ray diffraction.

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9

Quinn, Samuel, E. Stephen Davies, Nicholas Pearce, et al. "Donor-Acceptor Dyads and Triads Employing Core-Substituted Naphthalene Diimides: A Synthetic and Spectro (Electrochemical) Study." Molecules 27, no. 24 (2022): 8671. http://dx.doi.org/10.3390/molecules27248671.

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Donor-acceptor dyads and triads comprising core-substituted naphthalene diimide (NDI) chromophores and either phenothiazine or phenoxazine donors are described. Synthesis combined with electrochemical and spectroelectrochemical investigations facilitates characterisation of the various redox states of these molecules, confirming the ability to combine arrays of electron donating and accepting moieties into single species that retain the redox properties of these individual moieties.

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10

Kang, Hyojin, Su Yeon An, Bright Walker, et al. "Thienoisoindigo (TIIG)-based small molecules for the understanding of structure–property–device performance correlations." Journal of Materials Chemistry A 3, no. 18 (2015): 9899–908. http://dx.doi.org/10.1039/c5ta00016e.

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A series of small molecule semiconductors based on the recently conceived thienoisoindigo (TIIG) moiety and three end-capping moieties with varied electron-donating strength and conformations has been synthesized and utilized for organic photovoltaics (OPVs).

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11

T., Shubhavathi1 Raghu Ram Achar2 B.S. Priya1*. "3-BENZAZEPINONE DERIVATIVES: ANTIOXIDANT ACTIVITY AND ITS STRUCTURE ACTIVITY RELATIONSHIP (SAR) STUDIES." INDO AMERICAN JOURNAL OF PHARMACEUTICAL RESEARCH 07, no. 01 (2017): 7415–19. https://doi.org/10.5281/zenodo.1006933.

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A series of 3-benzazepinone (3-BZ) derivatives were tested for their in vitro antioxidant efficacy by DPPH and LPO assays and compared with standard Butylated Hydroxyl Anisole (BHA). The derivatives containing electron donating groups viz., OH, OCH3 were found to be good antioxidants compared to BHA. While, the compounds containing electron withdrawing moiety viz., NO2, Cl, Br, and F were found to be less active compared to standard BHA. The structure activity relationship studies suggest that the electron donating moieties majorly contribute to the anti-oxidant property of the potent compound

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12

Ashraf, Saba, Rui Su, Javeed Akhtar, Ahmed Shuja, Humaira M. Siddiqi, and Ahmed El-Shafei. "Molecular engineering of ruthenium-based photosensitizers with superior photovoltaic performance in DSSCs: novel N-alkyl 2-phenylindole-based ancillary ligands." New Journal of Chemistry 46, no. 6 (2022): 2739–46. http://dx.doi.org/10.1039/d1nj04362e.

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In this work, we report the design and successful synthesis of two new heteroleptic polypyridyl Ru(ii) complexes (SD-5 and SD-6), by incorporating hetero-aromatic electron-donating N-alkyl-2-phenylindole moieties into the ancillary ligand.

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13

Rashid, Md Al Mamunur, Dini Hayati, Kyungwon Kwak, and Jongin Hong. "Computational Investigation of Tuning the Electron-Donating Ability in Metal-Free Organic Dyes Featuring an Azobenzene Spacer for Dye-Sensitized Solar Cells." Nanomaterials 9, no. 1 (2019): 119. http://dx.doi.org/10.3390/nano9010119.

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A series of donor–π-conjugated spacer–acceptor (D–π–A) organic dyes featuring an azobenzene spacer were designed as chromic dyes and investigated computationally. The electron-donating strength was modified by introducing electron-donating units to the donor side. In particular, the trans–cis isomerization of the azobenzene-based dyes and its effect on the optical and electronic properties were further scrutinized. In both trans and cis conformers, a gradual increase in electron-donating strength promoted the natural charge separation between donor and acceptor moieties, thereby allowing the a

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14

Park, Gi Eun, Hyung Jong Kim, Dae Hee Lee, Min Ju Cho, and Dong Hoon Choi. "Regular terpolymers with fluorinated bithiophene units for high-performing photovoltaic cells." Polymer Chemistry 7, no. 31 (2016): 5069–78. http://dx.doi.org/10.1039/c6py00901h.

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We demonstrate effective structural control of various electron-donating moieties containing bithiophene (BT) and naphthalene derivatives with 3,3′-difluoro-2,2′-bithiophene in a regular terpolymer system and compare the properties of these polymers with those of the three binary copolymers PDPPNp, PDPPBT, and PDPPFBT.

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15

Sarı, Fatma Aslıhan, Abdulcelil Yuzer, Werther Cambarau, and Mine Ince. "Subphthalocyanine derivatives as donor for solution-processed small molecule organic solar cells." Journal of Porphyrins and Phthalocyanines 20, no. 08n11 (2016): 1114–21. http://dx.doi.org/10.1142/s1088424616500760.

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A series of symmetrically substituted subphthalocyanine derivatives with diverse substituent such as electron-donating or electron-withdrawing moieties at the peripheral position have been synthesized and their photophysical and electrochemical properties have been investigated. Solution-processed bulk heterojunction (BHJ) organic solar cells using SubPc derivatives as electron donor and fullerene derivative PCBM as an electron acceptor in the active layer were fabricated and characterized to evaluate the photovoltaic behavior of these molecules.

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16

Kumsampao, Jakkapan, Chaiyon Chaiwai, Chattarika Sukpattanacharoen, et al. "Self-absorption-free excited-state intramolecular proton transfer (ESIPT) emitters for high brightness and luminous efficiency organic fluorescent electroluminescent devices." Materials Chemistry Frontiers 5, no. 16 (2021): 6212–25. http://dx.doi.org/10.1039/d1qm00455g.

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ESIPT derivatives functionalized with N-electron donating moieties show pure keto form emissions with high solid-state fluorescence. As emitters, their OLEDs exhibit exceptionally high brightness (41 292–44 820 cd m<sup>−2</sup>) and high luminous efficiency (8.41–10.30 cd A<sup>−1</sup>).

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17

Wannebroucq, Amélie, Rita Meunier-Prest, Jean-Claude Chambron, Claire-Hélène Brachais, Jean-Moïse Suisse, and Marcel Bouvet. "Synthesis and characterization of fluorophthalocyanines bearing four 2-(2-thienyl)ethoxy moieties: from the optimization of the fluorine substitution to chemosensing." RSC Advances 7, no. 65 (2017): 41272–81. http://dx.doi.org/10.1039/c7ra05325h.

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18

Palai, Akshaya Kumar, Sangwook Kim, Hyunseok Shim, et al. "n-Type small aromatic core diimides flanked with electron donating thienylethyl moieties and electrical responses in organic devices." RSC Adv. 4, no. 78 (2014): 41476–82. http://dx.doi.org/10.1039/c4ra06012a.

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19

Chisholm, David R., Garr-Layy Zhou, Ehmke Pohl, Roy Valentine, and Andrew Whiting. "Practical synthetic strategies towards lipophilic 6-iodotetrahydroquinolines and -dihydroquinolines." Beilstein Journal of Organic Chemistry 12 (August 16, 2016): 1851–62. http://dx.doi.org/10.3762/bjoc.12.174.

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The synthesis of novel tetrahydroquinolines (THQ) and dihydroquinolines (DHQ) are reported using three practical, scalable synthetic approaches to access highly lipophilic analogues bearing a 6-iodo substituent, each with a different means of cyclisation. A versatile and stable quinolin-2-one intermediate was identified, which could be reduced to the corresponding THQ with borane reagents, or to the DHQ with diisobutylaluminium hydride via a novel elimination that is more favourable at higher temperatures. Coupling these strongly electron-donating scaffolds to electron-accepting moieties cause

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20

Lehnherr, Dan, Matthias Adam, Adrian H. Murray, Robert McDonald, Frank Hampel, and Rik R. Tykwinski. "Synthesis, physical properties, and chemistry of donor–acceptor-substituted pentacenes." Canadian Journal of Chemistry 95, no. 3 (2017): 303–14. http://dx.doi.org/10.1139/cjc-2016-0450.

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Pentacenes bearing electron-donating and (or) -withdrawing groups, namely methoxy-, dialkylamino-, and nitroaryl moieties, are synthesized to afford polarized pentacenes. The optical, electrochemical, and chemical properties of these derivatives are explored. The cycloaddition reaction of selected derivatives with tetracyanoethylene (TCNE) is explored, and the experimental results are rationalized on the basis calculations using density functional theory (DFT). X-ray crystallographic data provides insight into the molecular structure and intermolecular interactions present in the solid state.

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21

Kim, Yongjin, Jinseok Lee, Wonsang Kwon, et al. "Effects of electron donating and accepting moieties on electrical memory behaviors of polymers." Polymer 178 (September 2019): 121584. http://dx.doi.org/10.1016/j.polymer.2019.121584.

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22

Barnett, Steven M., Antonín Vlcek, Jr., and Ian S. Butler. "Article." Canadian Journal of Chemistry 76, no. 2 (1998): 158–63. http://dx.doi.org/10.1139/v97-222.

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Pressure-tuning infrared and Raman spectroscopic studies were performed on (2,2'-bipyridine)tetracarbonyl-chromium(0), Cr(CO)4(bpy). Previous bpy ring mode assignments were confirmed with new assignments offered by examination of the pressure-induced alterations in the vibrational spectra. The electron-density distribution of the bipyridyl ligand (and consequently, the electron-donating ability to the central metal) is modulated by the application of pressure. The pressure dependence of the carbonyl moieties reveals that the bipyridyl ligand can accommodate a significant portion of the molecul

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23

Goossens, Laurence, Omar Castillo-Aguilera, Patrick Depreux, Alexia Ballée, Florian Beaurain, and Paola B. Arimondo. "Study of the Effect of Substituents of ortho-Phenylenediamines in the Opening of Lactones and Lactams for Access to Benzimidazol-2-yl Alkanols and Benzimidazol-2-yl Alkylamines." Synlett 31, no. 12 (2020): 1216–20. http://dx.doi.org/10.1055/s-0040-1707112.

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Benzimidazoles represent common chemical moieties in bioactive compounds. The synthesis of this heterocycle often involves a condensation of an ortho-phenylenediamine with a carboxylic acid derivative. The observed dialkylation of the starting ortho-phenylenediamine is avoided by opening of lactones or lactams. This strategy can directly yield 1H-benzimidazoles substituted at the 2-position by a functionalized chain. We present herein a study of the effect of different electron-withdrawing or electron-donating groups at the 4-position of ortho-phenylenediamines on the opening of lactones or la

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24

Hong, Han Na, Hyung Jong Kim, Aesun Kim, et al. "Tunable intrinsic semiconducting properties of diketopyrrolopyrrole-based copolymers with electron donating thiophene and electron accepting thiazole moieties." Synthetic Metals 236 (February 2018): 1–7. http://dx.doi.org/10.1016/j.synthmet.2017.12.013.

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25

Karastatiris, Panayiotis, John A. Mikroyannidis, and Ioakim K. Spiliopoulos. "Bipolar poly(p -phenylene vinylene)s bearing electron-donating triphenylamine or carbazole and electron-accepting quinoxaline moieties." Journal of Polymer Science Part A: Polymer Chemistry 46, no. 7 (2008): 2367–78. http://dx.doi.org/10.1002/pola.22571.

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26

Guo, Jia, Yan Xia, Dongfeng Li, and Ruibin Hou. "Synthesis and electron-donating properties of novel norphthalocyanines containing thiacrown ether-linked tetrathiafulvalene moieties." Tetrahedron Letters 57, no. 5 (2016): 570–73. http://dx.doi.org/10.1016/j.tetlet.2015.12.089.

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27

Chang, Dong Wook, Seo-Jin Ko, Jin Young Kim, Liming Dai, and Jong-Beom Baek. "Multifunctional quinoxaline containing small molecules with multiple electron-donating moieties: Solvatochromic and optoelectronic properties." Synthetic Metals 162, no. 13-14 (2012): 1169–76. http://dx.doi.org/10.1016/j.synthmet.2012.04.016.

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28

Liu, Cheng-Liang, Jung-Ching Hsu, Wen-Chang Chen, Kenji Sugiyama, and Akira Hirao. "Non-volatile Memory Devices Based on Polystyrene Derivatives with Electron-Donating Oligofluorene Pendent Moieties." ACS Applied Materials & Interfaces 1, no. 9 (2009): 1974–79. http://dx.doi.org/10.1021/am900346j.

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29

Hou, Ruibin, Longyi Jin, and Bingzhu Yin. "Synthesis and electron donating property of novel porphyrazines containing tetrathiacrown ether-linked tetrathiafulvalene moieties." Inorganic Chemistry Communications 12, no. 8 (2009): 739–43. http://dx.doi.org/10.1016/j.inoche.2009.05.036.

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30

Luh, Tien-Yau, Hsin-Chieh Lin, and Chih-Ming Chou. "Heterophenes revisited." Pure and Applied Chemistry 80, no. 3 (2008): 475–84. http://dx.doi.org/10.1351/pac200880030475.

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By employing the furan annulation protocol, a new series of furan-containing teraryl [n.2]cyclophenes (n = 2-6 and 12) are prepared. These cyclophenes exhibit charge-transfer character in the absorption spectra and unusually large Stokes shifts in the emission spectra. They have neither particularly strong electron-donating moieties nor electron-withdrawing groups, but exhibit unusual second-order nonlinear optical (NLO) properties. The π-systems in teraryl system and in the bridging double bond are highly twisted. Interaction between these twisted π-systems may account for the significant enh

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31

Khaligh, Nader Ghaffari, Taraneh Mihankhah, Mohd Rafie Johan, and Salam J. J. Titinchi. "Microwave-assisted synthesis of pyrrolidinone derivatives using 1,1’-butylenebis(3-sulfo-3H-imidazol-1-ium) chloride in ethylene glycol." Green Processing and Synthesis 8, no. 1 (2019): 373–81. http://dx.doi.org/10.1515/gps-2019-0004.

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Abstract The energy efficiency of the microwave-assisted synthesis of pyrrolidinones was demonstrated using catalytic loading of 1,1’-butylene-bis(3-sulfo-3H-imidazol-1-ium) chloride as a sulfonic acid functionalized ionic liquid in ethylene glycol as green solvent. The effect of electron donating and electron withdrawing groups on aniline derivatives was studied under conventional heating and microwave irradiation. Furthermore, the cation effect of ionic liquids containing sulfonic groups on the catalytic efficiency for the synthesis of ethyl-1-phenyl-2-(4-chlorophenyl)-4-hydroxy-5-oxo-2,5-di

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32

Slobodinyuk, Daria, and Alexey Slobodinyuk. "Carbazole- Versus Phenothiazine-Based Electron Donors for Organic Dye-Sensitized Solar Cells." Molecules 30, no. 11 (2025): 2423. https://doi.org/10.3390/molecules30112423.

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Recently, research and development in the field of dye-sensitized solar cells has been actively advanced, as the technology constitutes a potential alternative to silicon-based photovoltaic devices. Modification of the molecular structure of the dye can enhance the adsorption on the TiO2 surface, improve the light absorption capacity, suppress the charge recombination, increase the electron injection rate, and thereby improve the overall performance of the solar cell. Carbazole and phenothiazine are rigid heterocyclic compounds containing nitrogen as a heteroatom with large π-conjugated skelet

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33

Alqurashy, Bakhet A., Bader M. Altayeb, Sulaiman Y. Alfaifi, Majed Alawad, Ahmed Iraqi, and Imran Ali. "Preparation and Characterization of Quinoxaline-Pyrene-Based Conjugated Copolymers for Organic Photovoltaic Devices." Coatings 10, no. 11 (2020): 1098. http://dx.doi.org/10.3390/coatings10111098.

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In this study, two novel conjugated polymers, poly(4,5,9,10-tetrakis((2-ethylhexyl)oxy]pyrene-alt-2,3-bis(3-(octyloxy)phenyl)-5,8-di(2-thienyl)-6,7-difluoroquinoxaline) (PPyQxff) and poly(4,5,9,10-tetrakis((2-ethylhexyl)oxy)pyren-alt-2,3-bis(3-(octyloxy)phenyl)-5,8-di(2-thienyl)quinoxaline) (PPyQx), consisting of quinoxaline units with and without fluorine substituents, as electron-accepting moieties and pyrene flanked with dithienyl units as electron-donating moieties were prepared via Stille polymerization reactions for use as electron donor materials in bulk heterojunction (BHJ) solar cells

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34

Greulich, Tobias W., Naoya Suzuki, Constantin G. Daniliuc, et al. "A biphenyl containing two electron-donating and two electron-accepting moieties: a rigid and small donor–acceptor–donor ladder system." Chemical Communications 52, no. 11 (2016): 2374–77. http://dx.doi.org/10.1039/c5cc03063c.

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35

Schlütter, Florian, Andreas Wild, Andreas Winter, et al. "Synthesis and Characterization of New Self-Assembled Metallo-Polymers Containing Electron-Withdrawing and Electron-Donating Bis(terpyridine) Zinc(II) Moieties." Macromolecules 43, no. 6 (2010): 2759–71. http://dx.doi.org/10.1021/ma902110v.

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36

Debnath, Tushar, Deepa Sebastian, Sourav Maiti, and Hirendra N. Ghosh. "Tuning Hole and Electron Transfer from Photoexcited CdSe Quantum Dots to Phenol Derivatives: Effect of Electron-Donating and -Withdrawing Moieties." Chemistry - A European Journal 23, no. 30 (2017): 7306–14. http://dx.doi.org/10.1002/chem.201700166.

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37

Li, Fu-Mian. "Macromolecularization of fullerenes and the charge transfer complex formation of fullerenes with polymers having electron-donating or electron-accepting moieties." Macromolecular Symposia 101, no. 1 (1996): 227–34. http://dx.doi.org/10.1002/masy.19961010126.

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38

Osman, Osman I., Mohamed Yagoub Alalem, Mahmoud Mohamed Ali, Shaaban A. Elroby, and Saadullah G. Aziz. "DFT Studies of p-N,N-(Dimethylamino) Benzoic Acid with Para or Meta–Electron Withdrawing or Donating Moieties for Dye-Sensitized Solar Cells (DSSCs)." Journal of Renewable Energy 2022 (October 22, 2022): 1–12. http://dx.doi.org/10.1155/2022/2916191.

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Solar energy is receiving considerable attention worldwide. Our contribution here focuses on fabricating p-N,N-(dimethylamino) benzoic acid (4-DMABA) donor-π-acceptor derivatives for use in dye-sensitized solar cells (DSSCs). The gas-phase and solvated 4-DMABA and some of its electron donating or withdrawing ortho or meta derivatives were studied theoretically. Density functional theory (DFT) and time-dependent DFT (TD-DFT) were applied to visualize their structural, molecular, photoelectrical, electronic, and photophysical parameters. The parameters for monitoring DSSC efficacies include HOMO

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39

Pincock, J. A., and A. WH Speed. "The aromatic character and resonance stabilization energies of substituted cyclopentadienyl and indenyl cations." Canadian Journal of Chemistry 83, no. 9 (2005): 1287–98. http://dx.doi.org/10.1139/v05-137.

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Calculations (B3LYP/6-31G(d)) have been used to assess the aromaticity of 5-X substituted indenyl (4) and cyclopentadienyl (5) cations with X = O, NH2, OCH3, CH3, F, H, CN, and N2+. Two criteria were used, the aromatic stabilization energy (ASE), as determined by isodesmic reactions, and bond alternation, as determined from the Julg index (A) on the basis of carboncarbon bond lengths. Substituent effects on the singlet state of the cyclopentadienyl cations resulted in significant decreases in antiaromatic character for electron-donating groups as indicated by larger A values (A = 0.25 for X

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40

DePaz, Sandrina, Arijit Sengupta, Yu-Hsuan Chiao, and Sumith Ranil Wickramasinghe. "Novel Poly(ionic liquid) Augmented Membranes for Unconventional Aqueous Phase Applications in Fractionation of Dyes and Sugar." Polymers 13, no. 14 (2021): 2366. http://dx.doi.org/10.3390/polym13142366.

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Poly(ionic) liquid (PIL) augmented membranes were fabricated through self-polymerization of 2-vinyl pyridine and 4-vinyl pyridine followed by dopamine triggered polymerization and bridging with inert polyamide support. The resulting membranes acquired a positive surface charge with a high degree of hydrophilicity. Fourier transformed Infra-red (FTIR) and Energy dispersive X-ray (EDX) spectroscopic investigation revealed the successful augmentation of PIL surface layer, whereas surface morphology was investigated through scanning electron microscopy (SEM) imaging. This manuscript demonstrates p

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41

Heynderickx, Arnault, Sébastien Nénon, Olivier Siri, Vladimir Lokshin, and Vladimir Khodorkovsky. "1,2,3,4-Tetrahydro-1,4,5,8-tetraazaanthracene revisited: properties and structural evidence of aromaticity loss." Beilstein Journal of Organic Chemistry 15 (August 28, 2019): 2059–68. http://dx.doi.org/10.3762/bjoc.15.203.

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The synthesis and properties of 1,2,3,4-tetrahydro-1,4,5,8-tetraazaanthracene (THTAA) – a heterocycle involving both >N–H donating and =N– accepting moieties – have been reinvestigated. Unlike previously reported, THTAA is a thermally stable compound that can be re-sublimed at 300–310 °C without decomposition. Controlled introduction of substituents at the nitrogen atoms of THTAA led to variation of its electron donor/acceptor capability that allowed fine-tuning the absorption properties. The propensity of these compounds and a number of its derivatives to form infinite chains involving &gt

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42

Kato, Shin-ichiro, Takayuki Furuya, Masashi Nitani та ін. "A Series of π-Extended Thiadiazoles Fused with Electron-Donating Heteroaromatic Moieties: Synthesis, Properties, and Polymorphic Crystals". Chemistry - A European Journal 21, № 7 (2014): 3115–28. http://dx.doi.org/10.1002/chem.201405478.

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43

Thulaseedharan Nair Sailaja, Sidharth, Iván Maisuls, Jutta Kösters, et al. "Naphthalonitriles featuring efficient emission in solution and in the solid state." Beilstein Journal of Organic Chemistry 16 (December 2, 2020): 2960–70. http://dx.doi.org/10.3762/bjoc.16.246.

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In this work, a series of γ-substituted diphenylnaphthalonitriles were synthesized and characterized. They show efficient emission in solution and in the aggregated state and their environment responsiveness is based on having variable substituents at the para-position of the two phenyl moieties. The excited state properties were fully investigated in tetrahydrofuran (THF) solutions and in THF/H2O mixtures. The size of the aggregates in aqueous media were measured by dynamic light scattering (DLS). The steady-state and time-resolved photoluminescence spectroscopy studies revealed that all the

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Dindorkar, Shreyas S., and Anshul Yadav. "Insights from Density Functional Theory on the Feasibility of Modified Reactive Dyes as Dye Sensitizers in Dye-Sensitized Solar Cell Applications." Solar 2, no. 1 (2022): 12–31. http://dx.doi.org/10.3390/solar2010002.

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Recently, reactive dyes have attracted a lot of attention for dye-sensitized solar cell applications. This study endeavors to design dye sensitizers with enhanced efficiency for photovoltaic cells by modifying the reactive blue 5 (RB 5) and reactive brown 10 (RB 10) dyes. Three different strategies were used to design the sensitizers, and their efficiency was compared using the density functional theory (DFT). The optimized geometry, bang gap values, the density of states, electrostatic potential surface analysis, and theoretical FT-IR absorption spectra of the sensitizers were obtained. In th

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Wang, Jiong, Shuo Dou, and Xin Wang. "Structural tuning of heterogeneous molecular catalysts for electrochemical energy conversion." Science Advances 7, no. 13 (2021): eabf3989. http://dx.doi.org/10.1126/sciadv.abf3989.

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Heterogeneous molecular catalysts based on transition metal complexes have received increasing attention for their potential application in electrochemical energy conversion. The structural tuning of first and second coordination spheres of complexes provides versatile strategies for optimizing the activities of heterogeneous molecular catalysts and appropriate model systems for investigating the mechanism of structural variations on the activity. In this review, we first discuss the variation of first spheres by tuning ligated atoms; afterward, the structural tuning of second spheres by appen

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Putralis, Reinis, Ksenija Korotkaja, Martins Kaukulis, et al. "Styrylpyridinium Derivatives for Fluorescent Cell Imaging." Pharmaceuticals 16, no. 9 (2023): 1245. http://dx.doi.org/10.3390/ph16091245.

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A set of styrylpyridinium (SP) compounds was synthesised in order to study their spectroscopic and cell labelling properties. The compounds comprised different electron donating parts (julolidine, p-dimethylaminophenyl, p-methoxyphenyl, 3,4,5-trimethoxyphenyl), conjugated linkers (vinyl, divinyl), and an electron-withdrawing N-alkylpyridinium part. Geminal or bis-compounds incorporating two styrylpyridinium (bis-SP) moieties at the 1,3-trimethylene unit were synthesised. Compounds comprising a divinyl linker and powerful electron-donating julolidine donor parts possessed intensive fluorescence

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Huang, Jinfeng, Zhenkun Lin, Wenhuai Feng, and Wen Wang. "Synthesis of Bithiophene-Based D-A1-D-A2 Terpolymers with Different A2 Moieties for Polymer Solar Cells via Direct Arylation." Polymers 11, no. 1 (2019): 55. http://dx.doi.org/10.3390/polym11010055.

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A series of bithiophene (2T)-based D-A1-D-A2 terpolymers with different A2 moieties were prepared via direct arylation reaction. In these terpolymers, pyrrolo[3,4-c]pyrrole-1,4-dione (DPP) was selected as the first electron-accepting (A1) moiety, 2,1,3-benzothiadiazole (BT) or fluorinated benzothiadiazole (FBT) or octyl-thieno[3,4-c]pyrrole-4,6-dione (TPD) or 2,1,3-benzoselendiazole (SeT) was selected as the second electron-accepting (A2) moiety, while bithiophene with hexyl side chain was used as the electron-donating moiety. The UV-vis absorption, electrochemical properties, blend film morph

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Kwak, Sang Woo, Ju Hyun Hong, Sang Hoon Lee, et al. "Synthesis and Photophysical Properties of a Series of Dimeric Indium Quinolinates." Molecules 26, no. 1 (2020): 34. http://dx.doi.org/10.3390/molecules26010034.

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A novel class of quinolinol-based dimeric indium complexes (1–6) was synthesized and characterized using 1H and 13C(1H) NMR spectroscopy and elemental analysis. Compounds 1–6 exhibited typical low-energy absorption bands assignable to quinolinol-centered π–π* charge transfer (CT) transition. The emission spectra of 1–6 exhibited slight bathochromic shifts with increasing solvent polarity (p-xylene < tetrahydrofuran (THF) < dichloromethane (DCM)). The emission bands also showed a gradual redshift, with an increase in the electron-donating effect of substituents at the C5 position of the q

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Li, Jie, Heqi Gong, Jincheng Zhang, et al. "Efficient Exciplex-Based Deep-Blue Organic Light-Emitting Diodes Employing a Bis(4-fluorophenyl)amine-Substituted Heptazine Acceptor." Molecules 26, no. 18 (2021): 5568. http://dx.doi.org/10.3390/molecules26185568.

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The realization of a deep-blue-emitting exciplex system is a herculean task in the field of organic light-emitting diodes (OLEDs) on account of a large red-shifted and broadened exciplex emission spectrum in comparison to those of the corresponding single compounds. Herein, 2,5,8-tris(di(4-fluorophenyl)amine)-1,3,4,6,7,9,9b-heptaazaphenalene (HAP-3FDPA) was designed as an electron acceptor by integrating three bis(4-fluorophenyl)amine groups into a heptazine core, while 1,3-di(9H-carbazol-9-yl)benzene (mCP) possessing two electron-donating carbazole moieties was chosen as the electron donor. E

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Yang, Mun Ho, Ho Cheol Jin, Joo Hyun Kim, and Dong Wook Chang. "Synthesis of Cyano-Substituted Conjugated Polymers for Photovoltaic Applications." Polymers 11, no. 5 (2019): 746. http://dx.doi.org/10.3390/polym11050746.

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Three conjugated polymers, in which the electron-donating (D) 5-alkylthiophene-2-yl-substitued benzodithiophene was linked to three different electron-accepting (A) moieties, i.e., benzothiadiazole (BT), diphenylquinoxaline (DPQ), and dibenzophenazine (DBP) derivative via thiophene bridge, were synthesized using the Stille coupling reaction. In particular, the strong electron-withdrawing cyano (CN) group was incorporated into the A units BT, DPQ, and DBP to afford three D–A type target polymers PB–BTCN, PB–DPQCN, and PB–DBPCN, respectively. Owing to the significant contribution of the CN-subst

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