- Synthesis of a proline-rich [60]fullerene peptide with potential biological activity
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A proline-rich [60]fullerene peptide was synthesized by use of (i) a 1,3-dipolar cycloaddition of an N-substituted glycine derivative to [60]fullerene, (ii) esterification of the isolated alcohol with the C-terminal amino acid of the desired peptide sequence, and finally (iii) coupling of the remaining hexapeptide to give the final product 8 as a TFA salt, with oxidized methionine. Product 8 was found to be biologically active against sera from MCTD and SLE patients (ELISA experiment).
- Sofou, Panagiota,Elemes, Yiannis,Panou-Pomonis, Eugenia,Stavrakoudis, Athanassios,Tsikaris, Vassilios,Sakarellos, Constantinos,Sakarellos-Daitsiotis, Maria,Maggini, Michele,Formaggio, Fernando,Toniolo, Claudio
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- FULLERENE DERIVATIVES
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A fullerene derivative having a partial structure represented by formula (1): wherein R represents a monovalent group, and r represents an integer of 0 to 4, in particular, a fullerene derivative, which has one to four structures represented by formula (1), can be applied to an organic photoelectric conversion element having a high open-circuit voltage and is therefore suitable for an organic thin-film solar cell or an organic photosensor, and thus it is extremely useful.
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- FULLERENE DERIVATIVE
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A fullerene derivative having two or more structures represented by the formula (1) can increase light absorption in a long wavelength range when used for an organic photovoltaic cell. In the formula (1), C1 and C2 represent carbon atoms constituting the fullerene skeleton. m represents an integer from 1 to 6, and n represents an integer from 1 to 4. p represents an integer of 0 or more, and R represents a monovalent organic group. Q represents a single bond, an arylene group, or a divalent heterocyclic group. When m is plurally present, these m may be the same or different from each other.
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- FULLERENE DERIVATIVE, COMPOSITION, AND ORGANIC PHOTOELECTRIC CONVERSION ELEMENT
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The present invention provides a fullerene derivative represented by the following formula (1). [In formula (1), a ring A represents a fullerene skeleton having 60 or more carbon atoms; R1 and R2 are the same as or different from each other, and each represent a halogen atom, an alkyl group, an alkoxy group or an aryl group (wherein the whole or a part of hydrogen atoms belonging to the alkyl group, the alkoxy group or the aryl group may be substituted with halogen atoms or a halogen atom); m represents an integer of 1 to 6, n represents an integer of 1 to 4, p represents an integer of 0 to 5, w represents an integer of 1 to 6, r represents an integer of 0 to 4, q represents an integer of 0 to 2 and v represents an integer of 0 to 3; when there are a plurality of R1s, the R1s may be the same as or different from each other; when there are a plurality of R2s the R2s may be the same as or different from each other; when there are a plurality of m's, the m's may be the same as or different from each other; and when there are a plurality of q's, the q's may be the same as or different from each other.]
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- FULLERENE DERIVATIVE, COMPOSITION AND ORGANIC PHOTOELECTRIC CONVERSION ELEMENT
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The present invention provides a fullerene derivative represented by the following formula (1). [In formula (1), a ring A represents a fullerene skeleton having 60 or more carbon atoms; Ar1, Ar2 and Ar3 are the same as or different from each other, and each represent an arylene group; E1, E2, E3 and E4 are the same as or different from each other, and each represent an aryl group; a and b each independently represent 0 or 1, and 0≤a+b1; m represents an integer of 1 to 6, n represents an integer of 1 to 4, p represents an integer of 0 to 5 and r represents an integer of 0 to 4.]
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- Design of fulleropyrrolidine derivatives as an acceptor molecule in a thin layer organic solar cell
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A systematic study on the design of fulleropyrrolidine derivatives as the acceptor of photovoltaic cells has been carried out using poly(3-hexylthiophene) (P3HT) as the model base polymer. It was found that N-methoxyethoxyethyl-2-(2- methoxyphenyl)fulleropyrrolidine worked as a good acceptor partner with P3HT and a high power conversion efficiency (PCE) (3.44%) was obtained; this is superior to that of the P3HT polymer including methyl [6,6]-phenyl-C61-butylate ([C60]-PCBM) under the same experimental conditions.
- Matsumoto, Kei,Hashimoto, Kohji,Kamo, Masaya,Uetani, Yasunori,Hayase, Shuichi,Kawatsura, Motoi,Itoh, Toshiyuki
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p. 9226 - 9230
(2011/05/05)
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- Synthesis of fulleropyrrolidine-imidazolium salt hybrids and their solubility in various organic solvents
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Eight types of fulleropyrrolidine-imidazolium hybrids have been synthesized and their solubility determined in various types of organic solvents. The solvent solubility of fullerene derivatives depends on the alky side chain on the imidazolium ring; modification of solvent solubility of the fulleropyrrolidine-imidazolium hybrids has thus been accomplished by introduction of an appropriate alkyl group using imidazoyl moiety as the 'functional group connector'. The imidazolium group seems to act not only as the connector but also as an important functional group that controls the solubility.
- Itoh, Toshiyuki,Mishiro, Makoto,Matsumoto, Kei,Hayase, Shuichi,Kawatsura, Motoi,Morimoto, Minoru
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p. 1823 - 1828
(2008/09/18)
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