- Organic field-effect transistors based on disubstituted perylene diimides: Effect of alkyl chains on the device performance
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The preparation and systematic investigation of n-type semiconductor materials based on disubstituted perylene diimides (PDIs) possessing alkyl chains with variable length (from C4 to C12) are reported. It was shown that electrical characteristics of field-effect transistors can be tuned by changing the length of the alkyl chains in the PDIs used as semiconductor materials.
- Mumyatov, Alexander V.,Leshanskaya, Lidiya I.,Anokhin, Denis V.,Dremova, Nadezhda N.,Troshin, Pavel A.
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- Method for performing dehalogenation reduction on multi-halogenated perylene diimide through cobalt catalyzing
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The invention discloses a method for performing dehalogenation reduction on multi-halogenated perylene diimide through cobalt catalyzing. The method is characterized in that multi-halogenated perylenediimide arene is effectively subjected to dehalogenation reduction by one step in the presence of an organic solvent through an inert atmosphere reactor under a catalyzing system containing dibromo cobalt with a catalyzing quantity, excessive manganese powder and excessive sodium formate. According to the method, the synthesizing route has the advantages of being simple, efficient, low in price of raw materials, low in synthesizing cost, and high in repeatability and can be widely applied to dehalogenation reduction reaction of other halogenated aromatic hydrocarbons.
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Paragraph 0031-0032; 0036; 0037; 0041-0042; 0046-0047
(2018/09/28)
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- Green and highly efficient synthesis of perylene and naphthalene bisimides in nothing but water
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High-purity, symmetrically substituted perylene and naphthalene bisimides were obtained by hydrothermal condensation of monoamines with the corresponding bisanhydride. The hydrothermal imidization proceeds quantitatively, without the need for organic solvents, catalysts or excess of the amines.
- Baumgartner, Bettina,Svirkova, Anastasiya,Bintinger, Johannes,Hametner, Christian,Marchetti-Deschmann, Martina,Unterlass, Miriam M.
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supporting information
p. 1229 - 1232
(2017/02/05)
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- Very Soluble and Photostable Perylene Fluorescent Dyes
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The synthesis of perylene dyes 2 with two terminal alkyl groups is described.Long-chain alkyl groups do not increase, but diminish solubility.Cycloalkyl substituents give a minimum of solubility with medium sized rings and a maximum with the cyclotetradecyl derivative (2p).Very high solubility in organic solvents is attained by substitution with secondary alkyl residues having two long chains.One of them, the dye with the 1-hexylheptyl substituent (2v), exhibits a solubility of more than 100g/l in most solvents, a fluorescent quantum yield of about 100 percent, and a very high photostability, thus making it suitable for special applications.
- Demming, Stefan,Langhals, Heinz
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p. 225 - 230
(2007/10/02)
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- Synthesis and Reactions of Perylenecarboxylic Acid Derivatives. VIII. Synthesis of N-Alkyl-3,4:9,10-Perylenetetracarboxylic Monoanhydride Monoimide
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The condensations of 3,4:9,10-perylenetetracarboxylic dianhydride with alkylamines (isobutyl-, pentyl-, hexyl-, and octylamines) were spectroscopically determined.Under all of the reaction conditions employed, N-alkyl-3,4:9,10-perylenetetracarboxylic monoanhydride monoimide (2a-d) (alkyl=a; isobutyl, b; pentyl, c; hexyl, d; octyl) were obtained.As the reaction proceeded, the yield of 2a-d increased at an initial stage but decreased gradually after reaching a maximum.This maximum yield of 2a-d was: 2a; 85-88percent, 2b; 85-89percent, 2c; 78-84percent, 2d; 79-85percent.The kinetics of the reaction were also examined.
- Nagao, Yukinori,Misono, Takahisa
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p. 1191 - 1194
(2007/10/02)
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