WO2011067415A1 - Kinetisch stabile chlorierte polysilane und deren herstellung und verwendung - Google Patents
Kinetisch stabile chlorierte polysilane und deren herstellung und verwendung Download PDFInfo
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- WO2011067415A1 WO2011067415A1 PCT/EP2010/068991 EP2010068991W WO2011067415A1 WO 2011067415 A1 WO2011067415 A1 WO 2011067415A1 EP 2010068991 W EP2010068991 W EP 2010068991W WO 2011067415 A1 WO2011067415 A1 WO 2011067415A1
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- polysilanes
- polysilane
- mixture according
- chlorine
- Prior art date
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- 229920000548 poly(silane) polymer Polymers 0.000 title claims abstract description 156
- 238000004519 manufacturing process Methods 0.000 title claims 2
- 239000000203 mixture Substances 0.000 claims abstract description 75
- 239000000460 chlorine Substances 0.000 claims abstract description 45
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical group [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 34
- 229910052801 chlorine Inorganic materials 0.000 claims abstract description 34
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims abstract description 32
- 238000006243 chemical reaction Methods 0.000 claims abstract description 28
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 23
- 125000001424 substituent group Chemical group 0.000 claims abstract description 23
- 239000010703 silicon Substances 0.000 claims abstract description 18
- KZBUYRJDOAKODT-UHFFFAOYSA-N Chlorine Chemical compound ClCl KZBUYRJDOAKODT-UHFFFAOYSA-N 0.000 claims abstract description 16
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 16
- 239000001257 hydrogen Substances 0.000 claims abstract description 16
- 150000001875 compounds Chemical class 0.000 claims abstract description 10
- 125000004435 hydrogen atom Chemical class [H]* 0.000 claims abstract description 6
- 230000001590 oxidative effect Effects 0.000 claims abstract description 5
- 239000000126 substance Substances 0.000 claims description 25
- 230000015556 catabolic process Effects 0.000 claims description 22
- 238000006731 degradation reaction Methods 0.000 claims description 22
- 238000001069 Raman spectroscopy Methods 0.000 claims description 19
- 238000000655 nuclear magnetic resonance spectrum Methods 0.000 claims description 19
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 15
- 238000005660 chlorination reaction Methods 0.000 claims description 15
- 125000004429 atom Chemical group 0.000 claims description 14
- 238000004821 distillation Methods 0.000 claims description 14
- 229910052736 halogen Inorganic materials 0.000 claims description 14
- 150000002367 halogens Chemical class 0.000 claims description 14
- 229910003902 SiCl 4 Inorganic materials 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 10
- 238000001237 Raman spectrum Methods 0.000 claims description 9
- 239000007788 liquid Substances 0.000 claims description 7
- 238000007248 oxidative elimination reaction Methods 0.000 claims description 7
- 229910008045 Si-Si Inorganic materials 0.000 claims description 6
- 229910006411 Si—Si Inorganic materials 0.000 claims description 6
- 238000001845 vibrational spectrum Methods 0.000 claims description 6
- 239000003085 diluting agent Substances 0.000 claims description 4
- 239000012442 inert solvent Substances 0.000 claims description 4
- 238000000425 proton nuclear magnetic resonance spectrum Methods 0.000 claims description 4
- 238000001228 spectrum Methods 0.000 claims description 4
- LXEXBJXDGVGRAR-UHFFFAOYSA-N trichloro(trichlorosilyl)silane Chemical compound Cl[Si](Cl)(Cl)[Si](Cl)(Cl)Cl LXEXBJXDGVGRAR-UHFFFAOYSA-N 0.000 claims description 3
- 238000005133 29Si NMR spectroscopy Methods 0.000 claims 3
- 238000001311 chemical methods and process Methods 0.000 claims 2
- 230000001186 cumulative effect Effects 0.000 claims 2
- 229910007245 Si2Cl6 Inorganic materials 0.000 claims 1
- 239000000047 product Substances 0.000 description 33
- 239000000243 solution Substances 0.000 description 15
- 239000000463 material Substances 0.000 description 10
- 239000007789 gas Substances 0.000 description 9
- 239000007858 starting material Substances 0.000 description 9
- 239000007795 chemical reaction product Substances 0.000 description 7
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 6
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 6
- 230000007423 decrease Effects 0.000 description 6
- 238000003756 stirring Methods 0.000 description 6
- BUMGIEFFCMBQDG-UHFFFAOYSA-N dichlorosilicon Chemical compound Cl[Si]Cl BUMGIEFFCMBQDG-UHFFFAOYSA-N 0.000 description 5
- 239000011541 reaction mixture Substances 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 4
- 125000001309 chloro group Chemical group Cl* 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 4
- 238000005481 NMR spectroscopy Methods 0.000 description 3
- 238000004508 fractional distillation Methods 0.000 description 3
- 230000035484 reaction time Effects 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 150000001335 aliphatic alkanes Chemical class 0.000 description 2
- 239000000010 aprotic solvent Substances 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000005284 excitation Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 230000000269 nucleophilic effect Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000007086 side reaction Methods 0.000 description 2
- BPPVUXSMLBXYGG-UHFFFAOYSA-N 4-[3-(4,5-dihydro-1,2-oxazol-3-yl)-2-methyl-4-methylsulfonylbenzoyl]-2-methyl-1h-pyrazol-3-one Chemical compound CC1=C(C(=O)C=2C(N(C)NC=2)=O)C=CC(S(C)(=O)=O)=C1C1=NOCC1 BPPVUXSMLBXYGG-UHFFFAOYSA-N 0.000 description 1
- VXEGSRKPIUDPQT-UHFFFAOYSA-N 4-[4-(4-methoxyphenyl)piperazin-1-yl]aniline Chemical compound C1=CC(OC)=CC=C1N1CCN(C=2C=CC(N)=CC=2)CC1 VXEGSRKPIUDPQT-UHFFFAOYSA-N 0.000 description 1
- 0 CC1C2C(*)CCCC2C1 Chemical compound CC1C2C(*)CCCC2C1 0.000 description 1
- 239000005046 Chlorosilane Substances 0.000 description 1
- FLZQPOPFIRDEAH-UHFFFAOYSA-N Cl[Si](Cl)(Cl)[Si](Cl)([Si](Cl)(Cl)Cl)[Si](Cl)([Si](Cl)(Cl)Cl)[Si](Cl)(Cl)Cl Chemical compound Cl[Si](Cl)(Cl)[Si](Cl)([Si](Cl)(Cl)Cl)[Si](Cl)([Si](Cl)(Cl)Cl)[Si](Cl)(Cl)Cl FLZQPOPFIRDEAH-UHFFFAOYSA-N 0.000 description 1
- 241001091551 Clio Species 0.000 description 1
- XKRFYHLGVUSROY-UHFFFAOYSA-N argon Substances [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- -1 argon ion Chemical class 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- KOPOQZFJUQMUML-UHFFFAOYSA-N chlorosilane Chemical class Cl[SiH3] KOPOQZFJUQMUML-UHFFFAOYSA-N 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 150000001923 cyclic compounds Chemical class 0.000 description 1
- 238000001212 derivatisation Methods 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- KSCFJBIXMNOVSH-UHFFFAOYSA-N dyphylline Chemical compound O=C1N(C)C(=O)N(C)C2=C1N(CC(O)CO)C=N2 KSCFJBIXMNOVSH-UHFFFAOYSA-N 0.000 description 1
- 239000012847 fine chemical Substances 0.000 description 1
- 230000004992 fission Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000001208 nuclear magnetic resonance pulse sequence Methods 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 238000007151 ring opening polymerisation reaction Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000005049 silicon tetrachloride Substances 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- CZDYPVPMEAXLPK-UHFFFAOYSA-N tetramethylsilane Chemical compound C[Si](C)(C)C CZDYPVPMEAXLPK-UHFFFAOYSA-N 0.000 description 1
- PZKOFHKJGUNVTM-UHFFFAOYSA-N trichloro-[dichloro(trichlorosilyl)silyl]silane Chemical compound Cl[Si](Cl)(Cl)[Si](Cl)(Cl)[Si](Cl)(Cl)Cl PZKOFHKJGUNVTM-UHFFFAOYSA-N 0.000 description 1
- 239000011345 viscous material Substances 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
- C08G77/60—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule in which all the silicon atoms are connected by linkages other than oxygen atoms
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B33/00—Silicon; Compounds thereof
- C01B33/04—Hydrides of silicon
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G17/00—Compounds of germanium
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G79/00—Macromolecular compounds obtained by reactions forming a linkage containing atoms other than silicon, sulfur, nitrogen, oxygen, and carbon with or without the latter elements in the main chain of the macromolecule
- C08G79/14—Macromolecular compounds obtained by reactions forming a linkage containing atoms other than silicon, sulfur, nitrogen, oxygen, and carbon with or without the latter elements in the main chain of the macromolecule a linkage containing two or more elements other than carbon, oxygen, nitrogen, sulfur and silicon
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/582—Recycling of unreacted starting or intermediate materials
Definitions
- the invention relates to kinetically stable halogenated polysilanes having an atomic ratio of halogen to silicon of at least 1: 1 which, due to its particular kinetic stability, is suitable for a large number of applications.
- Silicon dichloride reacted. Here are from 46.5 g
- polymeric silicon dichloride as the starting material only 20 g of the subchlorides obtained, which suggests that less than 50% of the starting material were reacted.
- This task is performed by kinetically stable halogenated
- Atomic ratio of substituent to silicon is at least 1: 1 where a) this is compared to a kinetically high stability
- the inventors have discovered that increased kinetic stability in halogenated polysilanes is due, inter alia, to a high proportion of branch points of more than 8 mol% in the polysilane molecules.
- the proportion of branching points in the polysilane molecules according to the invention can be increased by integration of the sharp
- Reaction mixture for determining the kinetic stability of the halogenated polysilanes resistant free chlorine gas is present, in the sense that the solution is saturated with chlorine gas. This can be achieved by consistently adding more chlorine gas to the solution than is simultaneously consumed by the reaction.
- the kinetically stable halogenated polysilanes can be used for applications that were previously inaccessible due to side reactions for the class of halogenated polysilanes.
- the application of layers of halogenated polysilanes to substrates in strongly oxidizing atmospheres, such as chlorine gas by means of the kinetically stable polysilanes invention possible.
- the resulting kinetically stable halogenated polysilanes can be converted by derivatization into other polysilane derivatives, which in turn
- chlorinated polysilane fractions obtained have a high proportion of cyclic compounds and are therefore suitable for
- the object of this embodiment of the invention is a particularly interesting fraction of the kinetically stable halogenated polysilanes having a chain length of more than 3 Si atoms. This fraction may be fractional
- Distillation can be isolated from an obtained crude mixture of kinetically stable halogenated polysilanes.
- S 1 2 CI 6 for example, by fractional distillation at 70 mbar and temperatures of 130 ° C and S 1 3 CI 8 by distillation at 20 mbar and temperatures below 140 ° C from the fraction with halogenated polysilanes having more than 3 silicon atoms be separated.
- the long-chain fractions of the kinetically stable halogenated polysilanes with more than three silicon atoms are generally not commercially available.
- 10 to 20% by weight of the particularly interesting fraction having more than three can be present in the crude mixture of the kinetically stable halogenated polysilanes
- the inventors have found that bonds between two secondary Si atoms particularly easily by means of a
- the kinetically stable halogenated polysilanes according to one embodiment of the invention have a fraction of less than 10 mol%, based on the silicon atoms involved in the bond (product signals in 29 Si NMR), of direct bonds between two secondary silicon atoms.
- Such secondary Si atoms show in the case of longer-chain halogenated polysilanes (n> 3) product signals with chemical shifts of less than 0 ppm and - 10 ppm.
- the kinetically stable halogenated polysilanes according to the invention less than 5 mol%, more preferably less than 2 mol% of direct bonds between two secondary Si atoms.
- the kinetically stable halogenated polysilanes can still bind between a secondary silicon atom - S1X 2 - and, for example, a tertiary Si atom -Si (Si) SiX-Si or a quaternary Si atom Si (Si) Si (Si) -Si exhibit. Also possible are bonds between a secondary and a primary Si atom. More preferably, the kinetically stable halogenated polysilanes such a high kinetic stability to oxidative cleavage by chlorine at temperatures of 120 ° C within 10 hours under chlorine gas surplus at 1013 hPa that no conversion to more than 20 mol%, preferably 15 mol% and more preferably up to 10 mol% takes place.
- a method for determining the kinetic stability of the halogenated polysilane mixtures is carried out as follows:
- the conversion of the kinetically stable halogenated polysilanes obtained by means of the test method, the oxidative cleavage by chlorine can be calculated as follows.
- the empirical formula of the material will be determined, which will be exposed to chlorination partial degradation by chlorine.
- a chloride determination for example, the chloride determination according to Mohr is carried out and then determined by integrating the peaks in a 1 H-NMR spectrum, the proportion of hydrogen atoms.
- the silicon present in the starting substance can then be determined by differential weighing, so that an empirical formula of the material used, for example SiCl 2 , s, is obtained.
- halogenated polysilanes also have an increased solubility in various inert solvents, such as cyclohexane, relative to the respective individual components.
- the kinetically stable halogenated polysilane mixtures according to the invention can be predominantly soluble in inert solvents, inert aprotic solvents being non-nucleophilic solvents, for example aromatics and alkanes.
- inert aprotic solvents being non-nucleophilic solvents, for example aromatics and alkanes.
- solubility is meant here a solubility of more than 50 mass%.
- Neopentachlorosilane Neo-SisCli 2 of at least 10 mol%, in particular more than 18 mol%, particularly preferably more than 25 mol%.
- Neopentachlorosilane is a branched chain compound with a particularly high kinetic stability.
- the polysilane mixtures of kinetically stable halogenated polysilanes have sharp significant product signals in the chemical shift range of 15 ppm to -10 ppm in 29 Si NMR spectra
- shift ranges are -31 ppm to -33 ppm and -77 to -82 ppm. Signals in these
- Displacement regions are characteristic of kinetically stable halogenated polysilanes. Especially in the chemical shift range for primary and secondary silicon atoms according to another
- halogenated polysilane mixtures produce significant and sharp product signals in a chemical shift range of 8.5 to 3 ppm, 1 ppm to -1 ppm, -3 ppm to -5 ppm and -6 ppm to -8.63 ppm, or combinations thereof.
- kinetically stable halogenated polysilane mixtures in the following chemical shift ranges can each have at least the following number of significant sharp product signals, namely four signals in a chemical shift range of 7 to 3 ppm
- hydrogen substituents wherein the hydrogen content may continue to be less than 2 atomic%, in particular less than 1 atomic%.
- chlorinated polysilanes can, for example, by means of
- Halogenated polysilanes which in addition to chlorine substituents still have hydrogen substituents have characteristic product signals in 1H-NMR spectra in chemical shift ranges between 6.5 and 3.5 ppm, in particular between 5.9 and 3.8 ppm.
- Polysilanes consist exclusively of halogens, in particular chlorine.
- pass is meant that less than 0.5 mole%, more preferably less than 0.05 mole%, of other substituents such as hydrogen are present.
- the halogenated kinetically stable polysilane mixtures can be obtained as fine chemicals with a very high degree of purity of at least 99.5%.
- the impurities can be less than 10 ppm.
- halogenated polysilanes can also have Raman spectra
- Raman spectra are thereby defined product signals the more than 10% of the intensity of the highest peak in the Raman spectrum.
- the inventors have found that Raman spectra with such significant product signals primarily on open-chain branched compounds
- kinetically stable halogenated polysilanes may have at least three significant product signals at 270 to 340 wavenumbers and at least two significant product signals at 540 to 640 wavenumbers.
- the polysilane mixture may be colorless to pale yellow or ivory white in color.
- the viscosity of the liquid fraction at room temperature is less than 1000 mPas, preferably less than 400 mPas.
- the soluble fraction may preferably be more than 80% undecomposed and / or distilled under reduced pressure, preferably 1 to 100 Pa.
- Another embodiment of the invention also provides kinetically stable halogenated polysilanes as a mixture of compounds having more than three silicon atoms in the backbone, each having at least four interconnected silicon atoms, their substituents chlorine or chlorine and hydrogen and in their composition
- Atomic ratio substituent: silicon is at least 1: 1, where
- the partial degradation involves a chlorination which is carried out over a period of 4 to 29 hours at a pressure of 200 to 2000 hPa.
- Such halogenated polysilanes have the already mentioned above advantageous properties in terms of high kinetic stability.
- polysilanes which each have at least one direct bond Si-Si, and their substituents of halogen, especially chlorine and in the composition of the atomic ratio substituent: silicon is at least 1: 1, - wherein the polysilanes of rings and Chains with one
- I ioo mean the Raman intensity at 100 cm ⁇ l and I132 the Raman intensity at 132 cm ⁇ l and
- plasma-chemically may also be used
- These plasma-chemically produced polysilanes also have at least one direct bond Si-Si, the substituents of which consist of halogen or halogen and hydrogen and in whose composition the atomic ratio substituent: silicon is at least 1: 1, wherein
- the hydrogen content of the polysilane is less than 2 atomic%
- the polysilane contains almost no short-chain branched chains and rings, the content of branching points of the short-chain portion, in particular of the added-up portion of the perhalogenated derivatives of neohexasilane,
- Neopentasilane, isotetrasilane, isopentasilane, perchloro, 2, 3-disilyl-tetrasilane and isohexasilane is less than 1 mol%, based on the total product mixture, d) the Raman molecular vibrational spectrum of an intensity of I ioo: II32 comprises greater than 1, wherein ioo the Raman intensity at 100 cm ⁇ l and mean I I132 Raman intensity at 132 cm ⁇ l
- the partial degradation of the halogenated polysilanes to the kinetically stable halogenated polysilanes can be carried out preferably at temperatures between 60 ° C and 140 ° C.
- halogenated polysilane mixture is split to the possible end products SiCl 4 or S1 2 CI 6 , on the other hand, but also ensures that the ge by the chlorination ⁇ formed polysilane mixtures have sufficient kinetic stability.
- the inventors have thus recognized that by maintaining these special reaction conditions in the partial degradation of the halogenated polysilanes kinetically stable halogenated polysilanes are formed, which open up completely new applications over the conventional halogenated polysilanes.
- the invention further relates to a process for the preparation of a kinetically stable halogenated polysilane mixture, wherein a partial degradation of halogenated polysilanes produced by a thermal and / or plasmachemisches method was carried out, said partial degradation includes a) a chlorination,
- the temperature of the reaction at 60 to 140 ° C is preferably maintained at 90 to 130 ° C and
- c) is operated at a pressure of 200 to 2000 hPa, preferably at 800 to 1500 hPa.
- the crude mixture formed from kinetically stable halogenated polysilanes nor a fractional distillation to separate a fraction of kinetically stable halogenated polysilanes formed with chain lengths n 2 and 3, ie hexachlorodisilane and
- Octachlorotrisilan be subjected. This fractional distillation, for example, at a pressure of 70 mbar and a bath temperature of 130 ° C for the separation of S 1 2 CI 6 and at a pressure of 20 mbar and a bath temperature of about 140 ° C for the separation of S 1 3 CI 8 performed become.
- Partial degradation are diluted, wherein preferably S 1CI 4 , S 1 2 CI 6 and / or S 1 3 CI 8 are used as a diluent.
- the dilution leads to a reduction of the viscosity, which leads to a more effective chlorination during the partial degradation.
- the kinetically stable halogenated according to the invention is preferably S 1CI 4 , S 1 2 CI 6 and / or S 1 3 CI 8 are used as a diluent.
- Polysilane mixtures with both more than three silicon atoms with the backbone and with the additional fraction with hexachlorodisilane and octachlorotrisilane are inert
- Solvents predominantly, that is soluble to more than 50 percent by mass, with preference as aprotic non-nucleophilic aprotic solvents such as aromatics and alkanes, for example toluene, benzene, cyclohexane and SiCl 4 can be used as the inert solvent.
- aprotic non-nucleophilic aprotic solvents such as aromatics and alkanes, for example toluene, benzene, cyclohexane and SiCl 4 can be used as the inert solvent.
- FIGS. 1A and 1B show a 29 Si NMR spectrum of a mixture according to the invention of kinetically stable
- FIG. 2 shows a Raman spectrum of the same polysilane mixture as in FIGS. 1A and 1B.
- Chlorine gas flow passed over the liquid. Discharged material is condensed out in a cold trap at 0 ° C. The viscosity of the liquid decreases during the reaction. After 9.5 h, the collected reaction products
- Embodiment 2 is a diagrammatic representation of Embodiment 1:
- Figure lb shows an enlarged section of this 29 Si NMR spectrum.
- Figure 2 shows the Raman spectrum of the distillation residue ⁇ .
- Embodiment 5 is a diagrammatic representation of Embodiment 5:
- fractions which consist mainly of SiCl 4 or S1 2 Cl 6 have an increased weight.
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA2782226A CA2782226A1 (en) | 2009-12-04 | 2010-12-06 | Kinetically stable chlorinated polysilanes and production and use thereof |
CN201080055163.XA CN102639609B (zh) | 2009-12-04 | 2010-12-06 | 动力学稳定的氯化聚硅烷及其制备和用途 |
EP10787124.6A EP2507296B1 (de) | 2009-12-04 | 2010-12-06 | Kinetisch stabile chlorierte polysilane und deren herstellung und verwendung |
BR112012013500A BR112012013500A2 (pt) | 2009-12-04 | 2010-12-06 | "polissilanos clorados cineticamente estáveis e sua preparação e uso" |
US13/513,018 US9040009B2 (en) | 2009-12-04 | 2010-12-06 | Kinetically stable chlorinated polysilanes and production thereof |
JP2012541537A JP5731531B2 (ja) | 2009-12-04 | 2010-12-06 | 反応速度論的に安定した塩素化ポリシラン、この製造及び使用 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102009056731A DE102009056731A1 (de) | 2009-12-04 | 2009-12-04 | Halogenierte Polysilane und Polygermane |
DE102009056731.3 | 2009-12-04 |
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WO2011067415A1 true WO2011067415A1 (de) | 2011-06-09 |
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PCT/EP2010/068994 WO2011067417A1 (de) | 2009-12-04 | 2010-12-06 | Verfahren zur herstellung von hydriertem polygermasilan und hydriertes polygermasilan |
PCT/EP2010/068974 WO2011067410A1 (de) | 2009-12-04 | 2010-12-06 | Verfahren zum entfernen von verunreinigungen aus silicium |
PCT/EP2010/068991 WO2011067415A1 (de) | 2009-12-04 | 2010-12-06 | Kinetisch stabile chlorierte polysilane und deren herstellung und verwendung |
PCT/EP2010/068979 WO2011067411A1 (de) | 2009-12-04 | 2010-12-06 | Verfahren zur herstellung von hydriertem polygerman und hydriertes polygerman |
PCT/EP2010/068986 WO2011067413A2 (de) | 2009-12-04 | 2010-12-06 | Chlorierte oligogermane und verfahren zu deren herstellung |
PCT/EP2010/068993 WO2011067416A1 (de) | 2009-12-04 | 2010-12-06 | Verfahren zur herstellung von halogenierten polysilanen |
PCT/EP2010/068995 WO2011067418A1 (de) | 2009-12-04 | 2010-12-06 | Verfahren zur herstellung von oligosilanen |
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PCT/EP2010/068994 WO2011067417A1 (de) | 2009-12-04 | 2010-12-06 | Verfahren zur herstellung von hydriertem polygermasilan und hydriertes polygermasilan |
PCT/EP2010/068974 WO2011067410A1 (de) | 2009-12-04 | 2010-12-06 | Verfahren zum entfernen von verunreinigungen aus silicium |
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PCT/EP2010/068979 WO2011067411A1 (de) | 2009-12-04 | 2010-12-06 | Verfahren zur herstellung von hydriertem polygerman und hydriertes polygerman |
PCT/EP2010/068986 WO2011067413A2 (de) | 2009-12-04 | 2010-12-06 | Chlorierte oligogermane und verfahren zu deren herstellung |
PCT/EP2010/068993 WO2011067416A1 (de) | 2009-12-04 | 2010-12-06 | Verfahren zur herstellung von halogenierten polysilanen |
PCT/EP2010/068995 WO2011067418A1 (de) | 2009-12-04 | 2010-12-06 | Verfahren zur herstellung von oligosilanen |
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US (7) | US9458294B2 (de) |
EP (7) | EP2507171A1 (de) |
JP (6) | JP5731531B2 (de) |
CN (3) | CN102639644A (de) |
BR (2) | BR112012013500A2 (de) |
CA (2) | CA2782247A1 (de) |
DE (1) | DE102009056731A1 (de) |
TW (7) | TW201132587A (de) |
WO (7) | WO2011067417A1 (de) |
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DE102014007685A1 (de) | 2014-05-21 | 2015-11-26 | Psc Polysilane Chemicals Gmbh | Verfahren zur Herstellung von Hexachlordisilan |
DE102014007768A1 (de) | 2014-05-21 | 2015-11-26 | Psc Polysilane Chemicals Gmbh | Verfahren zur Herstellung von Mischungen chlorierter Silane mit erhöhten Anteilen von Si4Cl10 und/oder Si5Cl12 |
DE102014007767A1 (de) * | 2014-05-21 | 2015-11-26 | Psc Polysilane Chemicals Gmbh | Verfahren und Vorrichtung zur Herstellung halogenierter Oligosilane aus Silicium und Tetrachlorsilan |
DE102014007685B4 (de) | 2014-05-21 | 2022-04-07 | Sven Holl | Verfahren zur Herstellung von Hexachlordisilan |
WO2016095953A1 (de) * | 2014-12-15 | 2016-06-23 | Spawnt Private S.À.R.L. | Verfahren zur herstellung von chlorierten oligosilanen |
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