Academic literature on the topic 'Bisadducts'
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Journal articles on the topic "Bisadducts"
Xiao, Zuo, Xinjian Geng, Dan He, Xue Jia, and Liming Ding. "Development of isomer-free fullerene bisadducts for efficient polymer solar cells." Energy & Environmental Science 9, no. 6 (2016): 2114–21. http://dx.doi.org/10.1039/c6ee01026a.
Full textAlmeida, José, António Aguiar, Andreia Leite, André M. N. Silva, Luís Cunha-Silva, Baltazar de Castro, Maria Rangel, Giampaolo Barone, Augusto C. Tomé, and Ana M. G. Silva. "1,3-Dipolar cycloadditions with meso-tetraarylchlorins – site selectivity and mixed bisadducts." Organic Chemistry Frontiers 4, no. 4 (2017): 534–44. http://dx.doi.org/10.1039/c6qo00771f.
Full textSakakibara, Keita, Araki Wakiuchi, Yasujiro Murata, and Yoshinobu Tsujii. "Precise synthesis of double-armed polymers with fullerene C60 at the junction for controlled architecture." Polymer Chemistry 11, no. 27 (2020): 4417–25. http://dx.doi.org/10.1039/d0py00458h.
Full textSi, Weili, Shirong Lu, Naoki Asao, Ming Bao, Yoshinori Yamamoto, and Tienan Jin. "NBS-promoted oxidation of fullerene monoradicals leading to regioselective 1,4-difunctional fullerenes." Chem. Commun. 50, no. 99 (2014): 15730–32. http://dx.doi.org/10.1039/c4cc07780f.
Full textSi, Weili, Xuan Zhang, Naoki Asao, Yoshinori Yamamoto, and Tienan Jin. "Ni-Catalyzed direct 1,4-difunctionalization of [60]fullerene with benzyl bromides." Chemical Communications 51, no. 29 (2015): 6392–94. http://dx.doi.org/10.1039/c5cc01534k.
Full textLi, Fei, Yanbo Shang, Chuang Niu, Chao Li, Xinmin Huang, Guoyong Xu, Jun Xuan, Hongping Zhou, and Shangfeng Yang. "Potassium salt promoted regioselective three-component coupling synthesis of 1,4-asymmetrical [60]fullerene bisadducts with superior electron transport properties." Chemical Communications 56, no. 66 (2020): 9513–16. http://dx.doi.org/10.1039/d0cc03857a.
Full textCampidelli, Stéphane, Ester Vázquez, Dragana Milic, Julie Lenoble, Carmen Atienza Castellanos, Ginka Sarova, Dirk M. Guldi, Robert Deschenaux, and Maurizio Prato. "Liquid-Crystalline Bisadducts of [60]Fullerene." Journal of Organic Chemistry 71, no. 20 (September 2006): 7603–10. http://dx.doi.org/10.1021/jo0609576.
Full textLi, Zong-Jun, Sisi Wang, Shu-Hui Li, Tao Sun, Wei-Wei Yang, Kazutaka Shoyama, Takafumi Nakagawa, et al. "Regiocontrolled Electrosynthesis of [60]Fullerene Bisadducts: Photovoltaic Performance and Crystal Structures of C60 o-Quinodimethane Bisadducts." Journal of Organic Chemistry 82, no. 16 (July 31, 2017): 8676–85. http://dx.doi.org/10.1021/acs.joc.7b01732.
Full textZhang, Bolong, Jonathan M. White, David J. Jones, and Wallace W. H. Wong. "Regioselective synthesis of fullerene multiadducts via tether-directed 1,3-dipolar cycloaddition." Organic & Biomolecular Chemistry 13, no. 42 (2015): 10505–10. http://dx.doi.org/10.1039/c5ob01630d.
Full textChronakis, Nikos. "The journey of l-tartaric acid in the world of enantiomerically pure bis- and trisadducts of C60 with the inherently chiral trans-3 and all-trans-3 addition patterns." Org. Biomol. Chem. 12, no. 43 (2014): 8574–79. http://dx.doi.org/10.1039/c4ob01666a.
Full textDissertations / Theses on the topic "Bisadducts"
Montellano, Lopez Alejandro. "Polyamidoamine dendritic fullerene derivatives for biological and material applications." Doctoral thesis, Università degli studi di Trieste, 2012. http://hdl.handle.net/10077/7392.
Full textFullerene C60 science can been broadly divided into the study of three areas: (i) its reactivitythat permits the obtention of modified fullerene derivatives, which can typically found (ii) biological and (iii) material applications. The main goal of this thesis is the synthesis and characterization of a library of monoadducts, bisadducts and hexakisadducts of fullerene C60 containing different generations of PAMAM dendron. On this purpose we have firstly studied the functionalization of fullerene C60 by means of 1,3-dipolar cycloaddition. On this purpose, we moved from the classic conditions by employing MW irradiation as the heating source, combined with ionic liquids as the solvent phase in order to obtain remarkable differences in the reactivity and the polyaddition selectivity. In a second stage we have been dealing with the separate synthesis of four different generations of PAMAM dendron and different fulleropyrrolidine moieties including: monoadduct and five bisadducts isomers to finally attach them via amidation. We have complete this library with the employment of the Bingel-Hirsch reaction to attach twelve units of a PAMAM first generation dendron to the carbon cage to obtain a Th symmetric hexakisadduct. As a result, a variety of fullerene derivatives with an enhanced water solubility was obtained, opening the door to their utilization for biological applications. Thus, we can distinguished between those containing terminal, positive-charged amines that can be used to efficiently complex oligonucleotides and those that contains one or more terminal-free carboxylic acid that can be used as anchor points for further functionalization. Concerning to those potentially used for transfection, the broad range of examples described in this thesis will permit to examine the role of the dendron moiety, the fullerene, and the distribution of the positive charges around the fullerene sphere, as key points into the complexation and transfection processes. Furthermore, complexation studies of some of these derivatives has been performed, all of them exhibiting a high affinity towards DNA complexation, demonstrating the great potential of these derivatives for transfection. In the last part of this thesis, we have focused on the synthesis of two porphyrin-dendrofullerene dyads with or without an amide linker. Since the water solubility usually goes hand in hand with a good number of charges we have incorporated an asymmetric tryspyridilporphyrin conferring three more positive charges to the final structure, that provides an additional solubility to the final molecule. This system is of the most interest since electron transfer processes could be studied in polar media. In addition, electrostatic interactions could be further exploited with negative charged systems to build up high complex systems.
XXIV Ciclo
1985
Hsu, Yu-Te. "Comparative Study of APFO-3 Solar Cells Using Mono- and Bisadduct Fullerenes as Acceptor." Thesis, Linköping University, Department of Physics, Chemistry and Biology, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-57796.
Full textThe urgent need for new, sustainable energy source intrigues scientists to provide the solution by developing new technology. Polymer solar cell appears to be the most promising candidate for its low cost, flexibility, and massive producibility. Novel polymers have been constantly synthesized and investigated, while the use of PCBM as acceptor seems to be the universal choice. Here, we studied the use of four dierent fullerene derivatives - [60]PCBM, [70]PCBM, and their bisadduct analogues - as acceptor in APFO-3 solar cells. A series of investigations were performed to study how the processing parameters - blend ratio, spin speed, and choice of solvent - influence the device performance. Using bisadduct fullerenes results in an enhanced Voc, as predicted by the up-shift of energy levels, but a strongly reduced Jsc, hence a poor PCE. Photoluminescence study indicates that all APFO-3:fullerene devices are limited by the inefficient dissociation of fullerene excitations, while it becomes more influential when bisadduct fullerenes were used as acceptor. The best device in this study was fabricated by using [70]PCBM as acceptor and chlorobenzene as solvent, exhibits a PCE of 2.9%, for the strong absorption, ne morphology, and comparatively strong driving force.
Ran, Tao. "Synthesis and Application of Fullerene Bis-Adduct Isomers as Novel Electron Acceptors in Polymer Solar Cells." 京都大学 (Kyoto University), 2015. http://hdl.handle.net/2433/202721.
Full textTsai, Ting-Yueh, and 蔡廷岳. "Synthesis of Dioxa-Cages as a New Probe for the Stereochemistry of the Bisadducts of p-Benzoquinone with Cyclopentadiene." Thesis, 2000. http://ndltd.ncl.edu.tw/handle/72290313233273005603.
Full text國立交通大學
應用化學系
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The synthesis of dioxa-cages via iodine-induced cyclization reaction can be used as a new method for the determination of the stereochemistry of the bisadducts of p-benzoquinone with cyclopentadiene. The four bisadducts 5 , 8 , 11 and 12 were converted into the dioxa-cages 10 , 14 , 18 and diiodo-cage 7 via a two-step sequence, respectively. The stereochemistry of dioxa-cages 10 , 14 , 18 was determined on the basis of 2D and NOE experiments. Ozonolysis of space closed isolated dienes structure 5 and 33 in CH2Cl2 at -78℃ followed treatment with Me2S and Amberlyst-15 afforded the diol 35 and dialdehyde compounds 38. Ozonolysis of p-benzoquinone derivative 44 under the same reaction conditions afforded the new tetraoxa-cage compound 46. Ozonolysis of isodrin derivative 48 under the same reaction conditions afforded the hydride rearrangment product 51.
Wei-ChihCheng and 鄭韋志. "Polymer solar cells with indene-C60 bisadduct as n-type semiconductor." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/96497421086156315194.
Full textTsao, Jing-Bo, and 曹景博. "A New Method for the Determination of theStereochemistry of the Bisadduts of p-BenzoquinoneWith Cyclopentadiene and 1,3-Cyclohexadiene." Thesis, 2001. http://ndltd.ncl.edu.tw/handle/41791616128714266952.
Full text國立交通大學
應用化學系
89
A New Method for the Determination of the Stereochemistry of the Bisadduts of p-Benzoquinone With Cyclopentadiene and 1,3-Cyclohexadiene Student: Jing-Bo Tsao Advisor: Dr. Hsien-Jen Wu Institute of Applied Chemistry National Chiao Tung University ABSTRACT The four bisadduts 10, 11, 18, 19 are synthesis of p-benzoquinone with cyclopentadiene and 1,3-cyclohexadiene . They were converted into the dioxa-cage 9, 14, 15 and diiodo- cage 17 by reduction and iodine-induced cyclization two steps. The stereochemistry of dioxa-cage 9, 14, 15 were determination by the 2D and NOE expermination.
CHANG, CHIA-HSING, and 張家馨. "(I)Synergistic Effect of Dynamic-cooling/Freeze-drying Process and Fullerene Bisadduct on the Morphology of Conjugated Polymer/PCBM Blends(II)Shear-induced Crystallization Process of pBCN/PCBM in o-xylene Solution." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/7d946x.
Full text輔仁大學
化學系
107
P3HT/PCBM blend films have been used in the photoactive layer of polymer solar cells. In the blend film, bulk-heterojuction (BHJ) structure can enhance contact area between materials and facilitate the exciton dissociation. In addition, controlling molecular aggregation of conjugating polymer has been a critical issue for polymer solar cells. Higher crystalline of P3HT is benificial to absorption spectra and carrier mobility. Thermal annealing has been used to improve crystalline of P3HT in many references. However, thermal annealing results in phase separation due to poor compatibility. Here, the new processes are applied to improve crystalline of polymer prior to coating process and decrease probability of phase separation so that minimum/or no post-treatment .With respect to materials, in high PCE polymer solar cells, low band-gap conjugated copolymer has been widely used to enhance absorption spectra recently, however, they are not often crystallizable because of different monomers used in the polymer backbones. Therefore, this study will apply the new processes to conjugated copolymer (pBCN). Part one, synergistic effect of dynamic cooling/freeze drying process is applied to pBCN/PCBM blend to enhance aggregation of pBCN and decrease agglomeration of PCBM. The dynamic-cooling process allows pBCN molecules to aggregate in solution into a more organized structure during the cooling process; the freeze-drying process prevents severe agglomeration of PCBM during the solvent removing process. To improve stability of blend films, we add additive (bis-PCBM) to decrease agglomeration of PCBM after thermal annealing. Part two, a shear–induced-crystallization (SIC) process is applied to the polymer solution prior to coating process. Experimental results indicate that after applying SIC process to a crystallizable polymer, pBCN, aggregation of pBCN is enhanced than that from spin-coating process. Additionally, film absorption study shows that aggregation of pBCN does not affected by addition of PCBM, which makes the SIC process feasible for the fabrication of polymer solar cells.
Book chapters on the topic "Bisadducts"
Li, Yongfang. "Higher LUMO Level Endohedral Fullerene and Fullerene Bisadduct Acceptors for Polymer Solar Cells." In Endohedral Fullerenes, 417–31. WORLD SCIENTIFIC, 2014. http://dx.doi.org/10.1142/9789814489843_0014.
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