Academic literature on the topic 'Electron donating moieties'

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Journal articles on the topic "Electron donating moieties"

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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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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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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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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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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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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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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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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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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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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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Book chapters on the topic "Electron donating moieties"

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Nawaz Shariff, Shakeel, Supriya Saravu, and Dileep Ramakrishna. "Schiff Base Complexes for Catalytic Application." In Schiff Base in Organic, Inorganic and Physical Chemistry [Working Title]. IntechOpen, 2022. http://dx.doi.org/10.5772/intechopen.107904.

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Primary amines are combined with an aldehyde group to generate Schiff base compounds, which are called condensation imine products. This class of compounds has a general structure, R-C=NR\', where R and R\' represent alkyl/aryl/cyclohexyl/heterocyclic group. These compounds contain an azomethine group that is basic in nature due to, (i) the presence of lone pair of electrons on the nitrogen and (ii) electron-donating nature of the double bond. Hence, these compounds, as ligands, participate in the formation of metal complexes. The presence of lone pair of electrons on the nitrogen atom and the hybridization involved explains the physical, chemical, and spectral properties of nitrogen-containing moieties. In the case of (sp2) hybridization (trigonal structure), the lone pair of electrons occupies either a symmetrical unhybridized 2p orbital that is perpendicular to the plane of trigonal hybrids or a symmetrical hybrid orbital, whose axis is in the plane, leaving behind only the π-electrons in the unhybridized 2p orbital. A very similar type of hybridization is experienced by the nitrogen atom in the azomethine group. Traditional phosphine complexes of nickel, palladium, and platinum, particularly those of palladium, have played an extremely important role in the development of homogeneous catalysis. Schiff base complexes as catalysts have been studied for various organic transformations such as oxidation, epoxidation, reduction, coupling reactions, polymerization reactions, hydroformylations, and many more.
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Conference papers on the topic "Electron donating moieties"

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Chittibabu, K. G., L. Li, X. Wang, J. Kumar, and S. K. Tripathy. "Thiophene based Nonlinear Optical Chromophore functionalized Epoxy Polymers for Electro-Optic Applications." In Organic Thin Films for Photonic Applications. Optica Publishing Group, 1997. http://dx.doi.org/10.1364/otfa.1997.thc.4.

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Polymeric materials present certain advantages over inorganic crystals for second-order nonlinear optical (NLO) applications because of their low dielectric constant, large optical nonlinearity, low cost, and ease of processability. Stable NLO polymeric materials are potential candidates for electro-optic (EO) devices such as high bandwidth electro-optic modulators [1], optical interconnects [2], and fiber optic gyros [3]. Second-order NLO properties in polymers are present when the chromophores are aligned in a non-centrosymmetric manner. Chromophores with enhanced NLO susceptibilities can be obtained by increasing electron-donating and/or accepting effects [4], by extending the conjugation length between the donor and acceptor groups [5] and by replacing the phenyl moieties in the chromophores with thiophene moieties [6]. Efforts were made by our group [7] and various other groups [6, 8] to synthesize and optimize the properties of the chromophore functionalized polymers with high optical nonlinearity. Jen and coworkers synthesized a variety of thiophene based chromophores with high optical nonlinearity, 'μβ' [6, 8]. Many of these chromophores, when doped in a polymer matrix exhibited an electro-optic value greater than 20 pm/V. Marder and coworkers studied the effect of strong acceptors in NLO chromophores and have found that an 'r33' value of 55 pm/V at 1.313 μm is realizable with some of these chromophore doped polycarbonate composites. However, most of these systems are of guest-host type, which limit the chromophore solubility as well as temporal stability of the poled order in the NLO chromophore-polymer composites.
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