EP2252648A1 - Nouveaux composés macromoléculaires à structure noyau-enveloppe, en vue de leur utilisation comme semi-conducteurs - Google Patents

Nouveaux composés macromoléculaires à structure noyau-enveloppe, en vue de leur utilisation comme semi-conducteurs

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Publication number
EP2252648A1
EP2252648A1 EP09721087A EP09721087A EP2252648A1 EP 2252648 A1 EP2252648 A1 EP 2252648A1 EP 09721087 A EP09721087 A EP 09721087A EP 09721087 A EP09721087 A EP 09721087A EP 2252648 A1 EP2252648 A1 EP 2252648A1
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European Patent Office
Prior art keywords
chains
linear
core
compounds
macromolecular
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EP09721087A
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German (de)
English (en)
Inventor
Timo Meyer-Friedrichsen
Stephan Kirchmeyer
Andreas Elschner
Sergei Ponomarenko
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Heraeus Deutschland GmbH and Co KG
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HC Starck Clevios GmbH
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Definitions

  • New macromolecular compounds having a core-shell structure for use as semiconductors having a core-shell structure for use as semiconductors
  • the invention relates to novel macromolecular compounds having a core-shell structure and their use in electronic components.
  • a field effect transistor is a three-electrode element in which the conductivity of a thin conduction channel between two electrodes (called “source” and “drain”) is determined by means of an electrode (called “gate”) separated from the conduction channel by the third insulator layer.
  • the most important characteristic features of a field-effect transistor are the mobility of the charge carriers, which decisively determine the switching speed of the transistor and the ratio between the currents in the switched and switched state, the so-called “on / off ratio”.
  • Organic Feid-effect transistors have hitherto used two large classes of compounds. Compounds of both classes have continuous conjugated units and, depending on molecular weight and structure, are subdivided into conjugated polymers and conjugated oligomers. STA 457 ATD-09-01-2009.doc
  • Oligomers usually have a uniform molecular structure and a molecular weight below 10,000 daltons. Polymers generally consist of chains of uniform repeating units with a molecular weight distribution. However, there is a smooth transition between oligomers and polymers.
  • oligomers are often vaporizable and are applied to substrates by vapor deposition.
  • polymers are often referred to independent of their molecular structure compounds that are no longer volatile and therefore applied by other methods.
  • polymers as a rule compounds are sought which are soluble in a liquid medium, for example organic solvents, and which can then be applied by means of corresponding application methods.
  • a very common application method is e.g.
  • the wet-chemical process has a greater potential for easily obtaining low-cost organic semiconductor integrated circuits.
  • oligomers as molecularly uniform and often volatile compounds, can be purified relatively simply by sublimation or chromatography.
  • oligomeric halbieitender compounds are, for example OHgothiophene, in particular those having terminal alkyl substituents according to formula (III) STA 457 ATD-09-01-2009.doc
  • R * H, alkyl I, alkoxy
  • Oligothiophene are usually hole semiconductors, ie only positive charge carriers are transported.
  • the highest mobilities of a compound are obtained in single crystals, for example, a mobility of 1.1 cm water for individual crystals of ⁇ , ⁇ '-sexithiophene (Science, 2000, Volume 290, p 963) and 4.6 cm 2 / Vs for rubrene single crystals (Adv. Mater., 2006, Vol. 18, p. 2320).
  • the mobilities usually drop sharply.
  • the decrease in semiconducting properties when processing oligomeric compounds from solution is attributed to the moderate solubility and low tendency for film formation of the oligomeric compounds.
  • inhomogeneities are attributed to precipitation during drying from the solution (Chem. Mater., 1998, Vol. 10, p. 633).
  • the laid-open specification WO 02/26859 A1 describes polymers of a conjugated back wheel to which aromatic conjugated chains are attached.
  • the polymers carry diarylamine side groups that allow electron conduction.
  • these compounds are unsuitable as semiconductors due to the diarylamine side groups.
  • EP-A 1 398 341 and EP-A 1 580 217 describe semiconducting. Connections with a core-shell structure, which are used as semiconductors in electronic components and can be processed from solution. However, these compounds tend to give poorly crystallizing films during processing, which, as crystallized films are a prerequisite for high charge carrier mobility, may be a hindrance to some applications. Although it is known that films of organic semiconductors can be subordinated by temperature treatment (deLeeuw et al., WO 2005104265), the macromolecular character of the compound can also hinder a complete subsequent order by means of temperature treatment.
  • Electrode distances in the transistor of 6 ⁇ m selected. In a roil-to-roll mass printing process, such small structures can not be created. Modern printing processes currently achieve resolutions of approx. 20 - 50 ⁇ m. At these distances, homogeneity and phase boundaries in the semiconductive layer play a much greater role.
  • Russel et al. describe in Appl. Phys. Lett. 87, 222109 (2005) describe the use of mixtures of poly (3-hexythiophene-2,5-diyl) and ⁇ , ⁇ '-dihexyl quartet thiophene for semiconductor layers in organic field-effect transistors.
  • the ⁇ , ⁇ '-Dihexylquarterthiophen forms crystalline islands, which are connected by the polymer.
  • the mobilities of the semiconductor layer found are limited by the lower mobilities of the poly (3-hexylthiophene-2, 5-diyl) s in comparison with ⁇ , ⁇ '-dihexyl quatthiophene.
  • the object of the invention was to provide organic compounds which can be processed from common solvents which give semiconducting films with good properties and which remain sufficiently stable when stored in air. Such compounds would be ideal for the large-scale application of organic semiconducting layers.
  • the compounds form high quality layers of uniform thickness and morphology and are suitable for electronic applications.
  • organic compounds have the desired properties when they have a core-shell structure containing a core composed of multifunctional units and a shell of connecting chains and linear conjugated oligomeric chains, each at the terminal point of attachment via at least one electron-withdrawing group carrying methylene carbon atom are saturated with at least one flexible non-conjugated chains.
  • the invention relates to macromolecular compounds having a core-shell structure, the core having a macromolecular basic structure based on silicon and / or carbon and having at least 2 via a carbon-based linking chain with carbon-based linear oligomeric chains with continuously conjugated double bonds and wherein the linear conjugated chains each have at least one electron-withdrawing group-carrying methylene carbon atom STA 457 ATD-09-01-2009.doc
  • At least one further, in particular aliphatic, araliphatic or oxyaliphatic chain having no conjugated double bonds is saturated.
  • the organic macromolecular compounds having a core-shell structure may, in a preferred embodiment, be oligomers or polymers.
  • oligomers are compounds having a molecular weight of less than 1000 daltons
  • polymers are compounds having an average molecular weight of 1000 daltons or greater.
  • the average molecular weight may be the number average (M n ) or weight average (M w ).
  • M n number average
  • M w weight average
  • the core-shell structure is a structure at the molecular level, i. it refers to the construction of a molecule as such.
  • the terminal point of attachment of the linear conjugated oligomeric chain is to be understood as meaning the point in the terminal unit of the linear oligomeric chain having conjugated double bonds via which no further linking of a further one occurs. Terminal is to be understood as furthest from the core.
  • the linear oligomeric chain with continuously conjugated double bonds is also referred to below as shortened linear conjugated oligomeric chain.
  • the macromolecular compounds having a core-shell structure preferably have a core-shell structure of the general formula (Z)
  • K is an n-functional core
  • V represents a connection chain
  • L is a linear conjugated oligomeric chain, preferably one containing optionally substituted thiophene or phenylene units,
  • A represents an electron-withdrawing group-carrying methylene carbon atom selected from the group consisting of carbonyl, dicyanovinyl, cyanoacrylic acid ester, malonic acid ester or dihalomethylene, STA 457 ATD-09-01-2009.doc
  • R for linear or branched ⁇ C 2 -C 20 -alkyl radicals, C 3 -C 8 -cycloalkylene radicals, mono- or polyunsaturated C 2 -C 2 (r alkenyl radicals, C 2 -C 2 o-alkoxy radicals, C 2 -C 2 O-aralkyl radicals or C 2 -C 2O -OHgO- or C 2 -C 20 -Polyetherreste,
  • n is an integer greater than or equal to 2, preferably a number between 2 and 4.
  • the corresponding alkyl radical represents a linear or branched C 1 -C 2 -alkyl radical, preferably a linear or branched C 1 -C 9 -alkyl radical.
  • the electron-withdrawing group represents a dihalogenemethylene group at A, it is understood as meaning a dibromo, dichloro, diiodo or difhormethylene group, preferably a difluoro methyl group.
  • the shell of the preferred compounds from the n TM V- (A) q ⁇ LAR blocks is formed, each of which is linked to the core.
  • Such compounds are designed so that a built-up from multi-functional units, ie branched core "link strings bearing electron-withdrawing groups (s) methylene carbon atom (s), linear conjugated oligomeric chains and non-conjugated chains are connected to each other.
  • the core composed of multifunctional units preferably has dendritic or hyperbranched structures.
  • Hyperbranched structures and their preparation are known per se to those skilled in the art.
  • Hyperbranched polymers or oligomers have a special structure, which is predetermined by the structure of the monomers used.
  • Monomers used are so-called ABn moieties, i.
  • Monomers carrying two different functionalities A and B are so-called ABn moieties, i.
  • Monomers carrying two different functionalities A and B are so-called ABn moieties, i.
  • Monomers carrying two different functionalities A and B Of these, one functionality (A) is present only once per molecule and the other functionality (B) several times (n times).
  • the two functionalities A and B can be reacted with each other to form a chemical bond, e.g. be polymerized.
  • Due to the monomer structure branched polymers with a tree-like structure, so-called hyperbranched polymers, are formed during the polymerization.
  • Hyperbranched polymers have no regular branching sites, no rings, and almost exclusively B functionalities at the chain ends. Hyperbranched polymers, their structure, the question of branching and their nomenclature are for the example of hyperbranched polymers based on silicones in LJ. Mathias, T.W. Carothers, Adv. Dendritic Macromol. (1995), 2, 101-121 and the work cited therein.
  • the hyperbranched structures are preferably dendritic polymers.
  • dendritic structures are synthetic macromolecular structures which are built up stepwise by linking in each case 2 or more monomers with each already bound monomer, so that with each step the number of monomer end groups increases exponentially and at the end a spherical tree structure is formed.
  • three-dimensional macromolecular structures are formed with groups that have branch points and continue from one center to the periphery in a regular fashion.
  • Such structures are usually built up layer by layer by methods known to those skilled in the art. The number of layers is usually called generation. The number of branches in each layer as well as the number of terminal groups increase with increasing generation. Due to their regular structure, dendritic structures can offer special advantages. Dendritic structures, methods of preparation and nomenclature are known in the art and described, for example, in G.R. Newkome et al., Dendrimers and Dendrons, Wiley-VCH, Weinheim, 2001.
  • dendritic or hyperbranched core made up of dendritic or hyperbranched structures, hereinafter also referred to as dendritic or hyperbranched core for short, are, for example, those described in US Pat. No. 6,025,462. These are for example STA 457 ATD-09-01-2009.doc
  • Hyperbranched structures such as polyphenylenes, polyetherketones, polyesters, e.g. in US-A 5,183,862, US-A 5,225,522 and US-A 5,270,402, aramids as e.g. in US-A 5,264,543, polyamides, e.g. in US-A 5,346,984, polycarbosilanes or polycarbosiloxanes, e.g. in US 6,384,172, or polyarylenes, e.g. in US-A 5,070,183 or US-A 5,145,930 or dendritic structures such as polyarylenes, polyarylene ethers or polyamidoamines, e.g. in US-A 4,435,548 and US-A 4,507,466, as well as polyethyleneimines, e.g. in US-A 4,631,337.
  • a dendritic core is preferably formed from siloxane and / or carbosilane units.
  • siloxane units it is preferred to use disiloxane and tetramethyldisiloxane units, and as carbosilane units it is preferred to use tetrapropylene-1-yl, tetraethylene-uranium,
  • Dihexyldipropylensilan-, hexylmethyl-dipropylensilanechen used.
  • other structural units can be used to construct the dendritic or hyperbranched core.
  • the role of the dendritic or hyperbranched core is primarily to provide a variety of functionalities and thus to form a matrix to which the linking chains with the linear conjugated oligomeric chains can be attached and thus arranged in a core-shell structure.
  • the linear conjugated oligomeric chains are preceded by attachment to the matrix, thus increasing their
  • the dendritic or hyperbranched core has a number of functionalities - in the sense of linking sites - which are suitable for attaching the linking chains with the linear conjugated oligomeric chains.
  • the dendritic core like the core composed of hyperbranched structures, has at least 2, but preferably at least 3 functionalities, more preferably at least 4 functionalities.
  • Preferred structures in the dendritic or hyperbranched core are 1,3,5-phenylene units (formula Va) and units of the formulas (Vb) to (Ve), where a plurality of identical or different units of the formulas (Va) to (Ve) linked together, STA 457 ATD-09-01-2009.doc
  • the units (V-a) to (V-e) are linked to the linearly conjugated oligomeric chains (L) via these or with one another via the connecting chains and via an optionally electron-withdrawing methylene carbon atom.
  • dendritic cores (K) composed of units of formula (V-a) are as follows:
  • the linking takes place via the connecting chains (V) and optionally an electron-withdrawing group-carrying methylene carbon atom (A) with the linear conjugated oligomeric chains (L).
  • the shell of the macromolecular compounds having a core-shell structure is made up of linking chains (V), at least one electron-withdrawing group
  • Connecting chains (V) are preferably those which have a high
  • connecting chains are basically linear or branched chains suitable, which have the following structural features:
  • Suitable connecting chains are particularly preferably linear or branched C 2 -C 20 -alkylene chains, such as, for example, ethylene, n-butylene, n-hexylene, n-octylene and n-dodecylene chains, linear or branched polyoxyalkylene chains, for example -OCH-, - OCH (CH 3 ) - or -O- (CH 2 ) ⁇ r segments containing oligoether chains, linear or branched siloxane chains, for example those with dimethylsiloxane structural units and / or straight-chain or branched Carbosilanketten, ie chains, the silicon-carbon single bonds included, wherein the silicon and carbon atoms may be arranged in an alternating, random or block in the chains such as those having JR -S 2 -CH 2 -CH 2 -CH 2 -SiR 2 - moieties.
  • linear conjugated oligomeric chains (L) of the general formula (Z) in principle all chains are suitable which have structures which as such are electrically conductive or semiconductive STA 457 ATD-09-01-2009.doc
  • Oligomers or polymers form. These are, for example, optionally substituted polyanilines, polythiophenes, polyethylenedioxythiophenes, polyphenylenes, polypyrroles, polyethylenetylenes, polyisonaphthenes, polyphenylenevinylenes, polyfluorenes, which can be used as homopolymers or oligomers or as copolymers or oligomers.
  • Examples of such structures which can preferably be used as linear conjugated oligomeric chains are chains of 2 to 10, more preferably 2 to 8 units of the general formulas (VI-a) to (VM),
  • R 1 , R 2 and R 3 may be identical or different and are hydrogen, straight-chain or branched C 1 -C 20 -alkyl- or C 1 -C 2 (r alkoxy groups, are preferably identical and stand for hydrogen,
  • R 4 may be the same or different and represent hydrogen, straight-chain or branched CrC 2 o-AlkyI phenomenon or C 2 o-AIkoxy phenomenon, preferably hydrogen or Ci-Q 2 - alkyl groups and are STA 457 ATD-09-01-2009.doc
  • R s is hydrogen or a methyl or ethyl group, preferably hydrogen
  • the positions of the formulas (Va) to (Vf) marked with * indicate the linking sites via which the units (Va) to (Vf) are linked to one another to form the linear conjugated oligomeric chain or the unconjugated chains (R ) wear.
  • the prefixed numbers 2,5- resp. 1,4- specify the positions in the units that are linked.
  • the linear conjugated oligomeric chains are each saturated at the terminal attachment sites with a nonconjugated chain (R).
  • Non-conjugated chains are preferably those which have high flexibility, ie high (intra) molecular mobility, thereby interact well with solvent molecules and thus produce improved solubility. Flexible in the context of the invention in the sense of (intra) molecularly mobile to understand.
  • the nonconjugated chains (R) are optionally oxygen-interrupted straight-chain or branched aliphatic, unsaturated or araliphatic chains having 2 to 20 carbon atoms, preferably having 6 to 20 carbon atoms, or C 3 -C 8 cycloalkylenes.
  • aliphatic and oxyaliphatic groups ie alkoxy groups or straight-chain or branched aliphatic groups interrupted by oxygen, such as oligo- or polyether groups, or C 3 -C 8 -cycloalkylenes.
  • Particularly preferred are unbranched C 2 to C 2O -AIlCyI- or C 2 -C 2O - alkoxy groups or C 3 -CG cycloalkylenes.
  • Suitable chains are alkyl groups such as n-hexyl, n-heptyl, n-octyl, n-nonyl, n-decyl and n-dodecyl groups and also alkoxy groups such as n-hexyloxy, n-heptyloxy, n-octyloxy, n- STA 457 ATD-09-01-2009.doc
  • Nonyloxy, n-decyloxy and n-dodecyloxy groups or C 3 -Q cycloalkylenes such as cyclopentyl, cyclohexyl or cycloheptyl.
  • p is an integer from 2 to 10, preferably from 2 to 8, more preferably from 2 to 7.
  • Preferred embodiments of the macromolecular compounds with a core-shell structure are core-shell structures which contain siloxane and / or carbosilane units in the dendritic core, linear unbranched alkylene groups as the linking chain, or electron-withdrawing groups of the at least one electron withdrawing group, methyl carbonyl carbonyl, dicyanovinyl , Cyanoacrylklaesler, Malonsä ⁇ reester or Dihalogenmethylen contain as linear conjugated oligomeric chains unsubstituierle oligothiophene chains and / or oligo (3,4-ethylendioxythio ⁇ hen) chains having 2 to 8, preferably 4 to 6 optionally substituted thiophene or 3,4-Ethylendioxvthiophen units and C 6 -C) 2 alkyl groups as flexible non-conjugated chains.
  • Layers of the macromolecular compounds of the general formula (Z) according to the invention are preferably conductive or semiconducting. Particularly preferred subject of the invention are such layers of the compounds or mixtures which are halbieitend. Particularly preferred are those layers of the compounds having a mobility of charge carriers of at least 10 "4 cm 2 Ws are. For example, charge carriers are positive hole charges.
  • the compounds according to the invention are typically readily soluble in common organic solvents and thus are outstandingly suitable for processing from solution.
  • Particularly suitable solvents are aromatics, ethers or halogenated aliphatic hydrocarbons, such as, for example, chloroform, toluene, benzene, xylenes, diethyl ether, dichloromethane, chlorobenzene, dichlorobenzene or tetrahydrofuran, or mixtures of these.
  • the preparation route is not significant for the properties of the compounds according to the invention.
  • the compounds of the invention are prepared in common solvents, e.g. Aromatics, ethers or halogenated aliphatic hydrocarbons, e.g. in chloroform, toluene, benzene, xylenes ,. Diethyl ether, dichloromethane, chlorobenzene, dichlorobenzene or tetrahydrofuran, at least 0.1 wt .-%, preferably at least 1 wt .-%, more preferably at least 5 wt .-% soluble.
  • solvents e.g. Aromatics, ethers or halogenated aliphatic hydrocarbons, e.g. in chloroform, toluene, benzene, xylenes ,. Diethyl ether, dichloromethane, chlorobenzene, dichlorobenzene or tetrahydrofuran, at least 0.1 wt .-%, preferably at least 1 wt
  • the invention furthermore relates to the use of the compounds according to the invention as semiconductors in electronic components such as field-effect transistors, light-emitting components such as organic light-emitting diodes, or photovoltaic cells, lasers and sensors.
  • electronic components such as field-effect transistors, light-emitting components such as organic light-emitting diodes, or photovoltaic cells, lasers and sensors.
  • the compounds according to the invention are preferably used in the form of layers for these purposes.
  • the compounds and mixtures according to the invention have sufficient mobility, for example at least ICT 4 cmWs.
  • cargo mobility can be as in M. Pope and CE. Swenberg, Electronic Processes in Organic Crystals and Polymers, 2nd ed., Pp. 709-713 (Oxford University Press, New York Oxford 1999).
  • the compounds according to the invention are applied to suitable substrates, for example silicon wafers provided with electrical or electronic structures, polymer films or glass panes.
  • suitable substrates for example silicon wafers provided with electrical or electronic structures, polymer films or glass panes.
  • all order procedures can be considered for the order.
  • the compounds of the invention and mixtures of liquid phase that is, applied from solution, and then the solvent is evaporated.
  • the application from solution can be carried out by the known methods, for example by spraying, dipping, printing and knife coating. Particularly preferred is the application by spin coating and by inkjet printing. STA 457 ATD-09-01-2009.doc
  • the layers made from the compounds of the invention may be further modified after application, for example by a thermal treatment, e.g. while passing through a liquid crystalline phase or for structuring e.g. by laser ablation.
  • the invention furthermore relates to electronic components comprising the compounds according to the invention and mixtures as semiconductors.
  • the compounds of the formula (Z) according to the invention can be prepared, for example, analogously to the synthesis listed below.
  • One-side polished p-type silicon wafers with a thermally grown oxide layer of 300 nm thickness were cut into 25 mm x 25 mm substrates.
  • the substrates were first carefully cleaned.
  • the adhering silicon chips were removed by rubbing with a clean room cloth (Bemot M-3, Ashaih Kasei Corp.) under flowing distilled water and then the substrates in an aqueous 2% water / Mucasol solution at 60 0 C for 15 min in an ultrasonic bath cleaned. Thereafter, the substrates were rinsed with distilled water and spun dry in a centrifuge.
  • the polished surface was cleaned in a UV / ozone reactor (PR-100, UVP Inc., Cambridge, UK) for 10 minutes.
  • the dielectric interlayer used was octyldimethylchlorosilane (ODMC) (Aldrich,
  • the ODMC was poured into a petri dish so that the bottom is just covered.
  • the magazine was then placed on top of the cleaned up Si substrates. Everything was covered with an inverted Bechergfas and heated the Petri dish to 70 0 C.
  • the substrates remained in the Octyldimethylchlorsälan rich atmosphere for 15min.
  • Hexamethyldisiaciazane (HMDS): The hexamethyldisiaciazane (Aldrich, 37921-2) used for the interlayer dielectric was poured into a beaker containing the magazine with the upright cleaned Si substrates. The silazane completely covered the substrates. The beaker was covered and heated to 70 ° C. on a hot plate. The substrates remained for 24 hrs. in the silazan. Subsequently, the substrates were dried in a dry stream of nitrogen. STA 457 ATD-09-01-2009.doc
  • a solution of the compounds in a suitable solvent was prepared.
  • the solution was placed for about 1 min in an ultrasonic bath at 60 0 C.
  • the concentration of the solution was 0.3% by weight.
  • the substrate provided with the dielectric interlayer was placed with the polished side up in the holder of a spin coater (Carl Süss, R.C8 with Gyrset®) and heated with a hair dryer to about 70 ° C. Approximately 1 ml of the still warm solution was dropped onto the surface and the solution was spun off with the organic semiconductor at 1200 rpm for 30 sec at an acceleration of 500 U / sec 2 and open Gyrset® on the substrate.
  • a spin coater Carl Süss, R.C8 with Gyrset®
  • a shadow mask was used, which consisted of a galvanically produced Ni foil with 4 recesses of two intermeshing combs.
  • the teeth of the individual combs were 100 ⁇ m wide and 4.7 mm long.
  • the mask was placed on the surface of the coated substrate and fixed with a magnet from the back.
  • the electrical capacitance of the devices was determined by evaporating an identically prepared substrate, but without an organic semiconductor layer, in parallel behind the same shadow masks.
  • the capacitance between the p-doped silicon wafer and the deposited electrode was determined with a multimeter, MetraHit 18S, Gossen Metrawatt GmbH).
  • the characteristic curves were measured with the aid of two current voltage sources (Keithley 238).
  • the one voltage source applies an electrical potential to the source and drain, thereby determining the flowing current, while the second sets an electrical potential at the gate and source.
  • the source and drain were contacted with pressed-on Au pins, the highly doped Si wafer formed the gate electrode and was contacted via the oxide scratched back.
  • Step 2 Preparation of (5'-bromo-2,2'-bilhien-5-yl) magnesium bromide.
  • the reaction was then stirred for 30 minutes at 40 ° C.
  • the magnesium bromide-diethyl ether complex solution from Step 1 was added in one portion.
  • the reaction solution was stirred for 30 minutes at -40 0 C and then for 2 hours at room temperature.
  • Step 3 Order l- (5'-Bromo-2,2'-Bithien-5-yl) undec-10-en-1-one.
  • the Grignard solution from step 2 was added to a solution of undecenoyl chloride (6.26 g, 30.9 mmol) and a freshly prepared solution of Li 2 MgCl 4 (1:54 mmol) was added dropwise in anhydrous THF at -5 0 C.
  • Li 2 MgCl 4 was prepared from MnCl 2 (194 mg, 15.4 mmol) and LiCl (137 mg, 32.4 mmol) by stirring in 50 mL of anhydrous THF at room temperature for 2 h.). Heated to room temperature for 2 hours and stirred for a further hour
  • reaction solution was poured into 400 ml of water and stirred with 600 ml of diethyl ether.
  • the organic phase was separated, washed with water, dried over sodium sulfate, filtered and the solvent removed in vacuo.
  • 12.06 g of crude product which was purified by repeated recrystallization from toluene and chromatography on silica gel (eluent toluene - hexane 1: 1, 60 0 C).
  • silica gel silica gel

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Abstract

L'invention concerne de nouveaux composés macromoléculaires présentant une structure noyau-enveloppe, ainsi que leur utilisation dans des composants électroniques.
EP09721087A 2008-03-14 2009-02-10 Nouveaux composés macromoléculaires à structure noyau-enveloppe, en vue de leur utilisation comme semi-conducteurs Withdrawn EP2252648A1 (fr)

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PCT/EP2009/051482 WO2009112319A1 (fr) 2008-03-14 2009-02-10 Nouveaux composés macromoléculaires à structure noyau-enveloppe, en vue de leur utilisation comme semi-conducteurs

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US20170044308A1 (en) * 2014-02-14 2017-02-16 Hitachi Chemical Company, Ltd. Polymer or oligomer, hole transport material composition, and organic electronic element using same
RU2624820C2 (ru) * 2014-07-09 2017-07-07 Федеральное государственное бюджетное учреждение науки Институт синтетических полимерных материалов им. Н.С. Ениколопова РАН (ИСПМ РАН) Донорно-акцепторные сопряженные молекулы и способ их получения
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