EP4251631A1 - Polycyclische silicium-germanium-verbindungen, verfahren zur herstellung derselben sowie die verwendung derselben zum herstellen eines si- und ge-enthaltenden festkörpers - Google Patents
Polycyclische silicium-germanium-verbindungen, verfahren zur herstellung derselben sowie die verwendung derselben zum herstellen eines si- und ge-enthaltenden festkörpersInfo
- Publication number
- EP4251631A1 EP4251631A1 EP21848247.9A EP21848247A EP4251631A1 EP 4251631 A1 EP4251631 A1 EP 4251631A1 EP 21848247 A EP21848247 A EP 21848247A EP 4251631 A1 EP4251631 A1 EP 4251631A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- compound
- alkyl
- formula
- group
- independently selected
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 239000007787 solid Substances 0.000 title claims abstract description 50
- 238000000034 method Methods 0.000 title claims abstract description 9
- -1 Polycyclic silicon-germanium compounds Chemical class 0.000 title description 13
- 150000001875 compounds Chemical class 0.000 claims abstract description 64
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 48
- 229910052732 germanium Inorganic materials 0.000 claims abstract description 46
- 229910052736 halogen Inorganic materials 0.000 claims abstract description 18
- 150000002367 halogens Chemical class 0.000 claims abstract description 18
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 11
- 125000000217 alkyl group Chemical group 0.000 claims description 26
- 125000003118 aryl group Chemical group 0.000 claims description 13
- 238000004519 manufacturing process Methods 0.000 claims description 12
- 238000006243 chemical reaction Methods 0.000 claims description 11
- 239000003054 catalyst Substances 0.000 claims description 10
- 150000004795 grignard reagents Chemical class 0.000 claims description 9
- 239000007818 Grignard reagent Substances 0.000 claims description 8
- 229910052799 carbon Inorganic materials 0.000 claims description 8
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 6
- 125000002877 alkyl aryl group Chemical group 0.000 claims description 5
- 125000003342 alkenyl group Chemical group 0.000 claims description 4
- 125000000304 alkynyl group Chemical group 0.000 claims description 4
- 125000003710 aryl alkyl group Chemical group 0.000 claims description 4
- 125000000753 cycloalkyl group Chemical group 0.000 claims description 4
- 238000002425 crystallisation Methods 0.000 claims description 2
- 230000008025 crystallization Effects 0.000 claims description 2
- 229910003828 SiH3 Inorganic materials 0.000 abstract 1
- OLRJXMHANKMLTD-UHFFFAOYSA-N silyl Chemical compound [SiH3] OLRJXMHANKMLTD-UHFFFAOYSA-N 0.000 abstract 1
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 20
- 238000005481 NMR spectroscopy Methods 0.000 description 17
- 238000010438 heat treatment Methods 0.000 description 14
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 10
- 230000015572 biosynthetic process Effects 0.000 description 7
- 239000002904 solvent Substances 0.000 description 7
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 6
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 6
- 239000000047 product Substances 0.000 description 6
- 238000003786 synthesis reaction Methods 0.000 description 6
- 125000004432 carbon atom Chemical group C* 0.000 description 5
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 5
- 238000004009 13C{1H}-NMR spectroscopy Methods 0.000 description 4
- 238000002441 X-ray diffraction Methods 0.000 description 4
- 125000004108 n-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 4
- 239000003960 organic solvent Substances 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 4
- 239000004215 Carbon black (E152) Substances 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- IMNFDUFMRHMDMM-UHFFFAOYSA-N N-Heptane Chemical compound CCCCCCC IMNFDUFMRHMDMM-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- LEVVHYCKPQWKOP-UHFFFAOYSA-N [Si].[Ge] Chemical class [Si].[Ge] LEVVHYCKPQWKOP-UHFFFAOYSA-N 0.000 description 3
- 230000008021 deposition Effects 0.000 description 3
- 229930195733 hydrocarbon Natural products 0.000 description 3
- 150000002430 hydrocarbons Chemical class 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 150000002739 metals Chemical class 0.000 description 3
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 3
- 229920006395 saturated elastomer Polymers 0.000 description 3
- 238000005160 1H NMR spectroscopy Methods 0.000 description 2
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 2
- OFBQJSOFQDEBGM-UHFFFAOYSA-N Pentane Chemical group CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 2
- 125000002252 acyl group Chemical group 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 2
- 125000001972 isopentyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])C([H])([H])* 0.000 description 2
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 2
- 239000011777 magnesium Substances 0.000 description 2
- NXPHGHWWQRMDIA-UHFFFAOYSA-M magnesium;carbanide;bromide Chemical compound [CH3-].[Mg+2].[Br-] NXPHGHWWQRMDIA-UHFFFAOYSA-M 0.000 description 2
- 125000001624 naphthyl group Chemical group 0.000 description 2
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 2
- NHGXDBSUJJNIRV-UHFFFAOYSA-M tetrabutylammonium chloride Chemical compound [Cl-].CCCC[N+](CCCC)(CCCC)CCCC NHGXDBSUJJNIRV-UHFFFAOYSA-M 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- YBYIRNPNPLQARY-UHFFFAOYSA-N 1H-indene Natural products C1=CC=C2CC=CC2=C1 YBYIRNPNPLQARY-UHFFFAOYSA-N 0.000 description 1
- 125000003229 2-methylhexyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])(C([H])([H])[H])C([H])([H])* 0.000 description 1
- 125000000094 2-phenylethyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000003542 3-methylbutan-2-yl group Chemical group [H]C([H])([H])C([H])(*)C([H])(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- WYHZYPSDNWYMJW-UHFFFAOYSA-N C1(=CC=CC=C1)[Ge]([SiH3])(C1=CC=CC=C1)C1=CC=CC=C1 Chemical compound C1(=CC=CC=C1)[Ge]([SiH3])(C1=CC=CC=C1)C1=CC=CC=C1 WYHZYPSDNWYMJW-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- BZLVMXJERCGZMT-UHFFFAOYSA-N Methyl tert-butyl ether Chemical compound COC(C)(C)C BZLVMXJERCGZMT-UHFFFAOYSA-N 0.000 description 1
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 1
- 229910000577 Silicon-germanium Inorganic materials 0.000 description 1
- 150000001266 acyl halides Chemical class 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 150000003863 ammonium salts Chemical class 0.000 description 1
- 125000005428 anthryl group Chemical group [H]C1=C([H])C([H])=C2C([H])=C3C(*)=C([H])C([H])=C([H])C3=C([H])C2=C1[H] 0.000 description 1
- 125000004429 atom Chemical group 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 125000003828 azulenyl group Chemical group 0.000 description 1
- 125000001246 bromo group Chemical group Br* 0.000 description 1
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 125000001309 chloro group Chemical group Cl* 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000012043 crude product Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 150000004292 cyclic ethers Chemical class 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 125000000058 cyclopentadienyl group Chemical group C1(=CC=CC1)* 0.000 description 1
- 150000001983 dialkylethers Chemical class 0.000 description 1
- ZSWFCLXCOIISFI-UHFFFAOYSA-N endo-cyclopentadiene Natural products C1C=CC=C1 ZSWFCLXCOIISFI-UHFFFAOYSA-N 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 125000003983 fluorenyl group Chemical group C1(=CC=CC=2C3=CC=CC=C3CC12)* 0.000 description 1
- 125000001153 fluoro group Chemical group F* 0.000 description 1
- 229910000078 germane Inorganic materials 0.000 description 1
- 125000005843 halogen group Chemical group 0.000 description 1
- 238000005984 hydrogenation reaction Methods 0.000 description 1
- 125000003454 indenyl group Chemical group C1(C=CC2=CC=CC=C12)* 0.000 description 1
- 229910000765 intermetallic Inorganic materials 0.000 description 1
- 125000002346 iodo group Chemical group I* 0.000 description 1
- 125000000959 isobutyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])* 0.000 description 1
- 125000004491 isohexyl group Chemical group C(CCC(C)C)* 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 125000003136 n-heptyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000000740 n-pentyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 239000002086 nanomaterial Substances 0.000 description 1
- 125000001971 neopentyl group Chemical group [H]C([*])([H])C(C([H])([H])[H])(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 125000005561 phenanthryl group Chemical group 0.000 description 1
- 125000005496 phosphonium group Chemical group 0.000 description 1
- 239000003495 polar organic solvent Substances 0.000 description 1
- 229920000548 poly(silane) polymer Polymers 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 125000003548 sec-pentyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 229910000077 silane Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- 238000001149 thermolysis Methods 0.000 description 1
- LXEXBJXDGVGRAR-UHFFFAOYSA-N trichloro(trichlorosilyl)silane Chemical compound Cl[Si](Cl)(Cl)[Si](Cl)(Cl)Cl LXEXBJXDGVGRAR-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F7/00—Compounds containing elements of Groups 4 or 14 of the Periodic Table
- C07F7/30—Germanium compounds
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/02104—Forming layers
- H01L21/02365—Forming inorganic semiconducting materials on a substrate
- H01L21/02518—Deposited layers
- H01L21/02521—Materials
- H01L21/02524—Group 14 semiconducting materials
- H01L21/02532—Silicon, silicon germanium, germanium
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/02104—Forming layers
- H01L21/02365—Forming inorganic semiconducting materials on a substrate
- H01L21/02612—Formation types
- H01L21/02617—Deposition types
- H01L21/0262—Reduction or decomposition of gaseous compounds, e.g. CVD
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07B—GENERAL METHODS OF ORGANIC CHEMISTRY; APPARATUS THEREFOR
- C07B2200/00—Indexing scheme relating to specific properties of organic compounds
- C07B2200/13—Crystalline forms, e.g. polymorphs
Definitions
- the present invention relates to polycyclic silicon-germanium compounds, a method for producing the same and the use of the same for producing a solid body containing Si and Ge.
- Halosilanes, polyhalosilanes, halogermanes, polyhalogermanes, silane, polysilanes, germane, polygermanes and corresponding mixed compounds have been known for a long time, cf. in addition to the conventional textbooks on inorganic chemistry, also WO 2004/036631 A2 or C.J. Ritter et al., J. Am. Chem. Soc., 2005, 127, 9855-9864.
- Triphenylgermylsilan and its preparation is described in EP 3409645 Ai.
- the object of the present invention is to overcome the disadvantages of the prior art, in particular to produce storable, tailor-made silicon-germanium compounds that are suitable for the production of Si/Ge solids.
- E 1 to E 6 are independently Si or Ge;
- X 1 through X 4 are independently selected from the group consisting of H, SiH 3 , halogen and Si(Y) 3 ;
- Y is independently selected from C 1 to C 20 alkyl and halogen;
- R 1 to R 12 are independently selected from the group consisting of C 1 to C 20 alkyl, C 2 to C 20 alkenyl, C 2 to C 20 alkynyl, C 3 to C 20 cycloalkyl, C 6 to C 20 aryl, C C7 to C20 alkylalkyl , C7 to C20 alkylaryl and Z are selected; and
- Z is independently selected from the group consisting of H, halogen and C 1 to C 20 alkyl.
- E 1 to E 6 can be arranged that at least three of E 1 to E 6 are Ge and the rest of E 1 to E 6 are Si. It can be arranged that four, five or six of E 1 to E 6 are Ge and the remainder of E 1 to E 6 are Si. It can be arranged that four or five of E 1 to E 6 are Ge and the remainder of E 1 to E 6 are Si.
- R 1 to R 12 can be independently selected from the group consisting of C 1 to C 12 alkyl, C 2 to C 12 alkenyl, C 2 to C 12 alkynyl, C 3 to C 12 cycloalkyl, C 6 , to C 12 aryl, C 7 to C 13 arylalkyl, C 7 to C 13 alkylaryl, and halogen.
- R 1 to R 12 are independently selected from the group consisting of C 1 to C 12 alkyl, C 6 to C 12 aryl, C 7 to C 13 alkylalkyl, C 7 to C 13 alkylaryl, and halogen, are selected.
- R 1 to R 12 are independently selected from the group consisting of C 1 to C 20 alkyl, C 6 to C 20 aryl and halogen.
- R 1 to R 12 are independently selected from the group consisting of C 1 to C 12 alkyl and halogen.
- R 1 to R 12 are independently CI or methyl. It may be envisaged that two R n directly connected to the same E m (that is, the two R in the pairs R 1 and R 2 , R 3 and R 4 , R 5 and R 6 , R 7 and R 8 , R 9 and R 10 , and R 11 and R 12 ) are the same.
- the two R n directly linked to the E m are C 1 to C 20 alkyl . It can be envisaged that when the E m (ie one of E 1 to E 6 ) is Ge, the two R n directly connected to the E m are C 1 to C i2 alkyl . It can be envisaged that in the case where the E m (that is, one of E 1 to E 6 ) is Ge, the two R n directly linked to the E m are C 1 to C s alkyl.
- the E m that is, one of E 1 to E 6
- the two R n directly linked to the E m are C 1 to C 4 alkyl
- the E m ie one of E 1 to E 6
- the two R n directly connected to the E m are methyl.
- the E m that is, one of E 1 to E 6
- the two R n directly connected to the E m are halogen. It can be envisaged that if the E m (ie one of E 1 to E 6 ) is Si, the two R n directly connected to the E m are CI.
- X 1 to X 4 are independently selected from the group consisting of H, SiH 3 , Si(C 1 to C 20 alkyl) 3 , Cl and SiCl 3 . Provision can be made for X 1 to X 4 to be selected independently from the group consisting of H, SiH 3 , Si(C 1 to C i2 alkyl) 3 , Cl and SiCl 3 . It can be provided that X 1 to X 4 are independently selected from the group consisting of H, SiH 3 , Si(C 1 to Cs alkyl) 3 , Cl and SiCl 3 .
- the compound of the formula (I) is selected from one of the following compounds C1 to C4.
- the molar ratio of compound (II) to compound (III) can be from 10:1 to 1:40; 5:1 to 1:2; 2:1 to 1:20; 1.5:1 to 1:10; 1.2:1 to 1:8; 1:3 to 1:5, approximately 1:4.
- the reaction of the compound of formula (II) with the compound of formula (III) takes place in the presence of a catalyst.
- the catalyst is used in amounts of 0.001 to 1 eq., preferably 0.01 to 0.1 eq. to use.
- the catalyst is a base.
- the catalyst is a phosphorus- or nitrogen-containing base.
- the catalyst is a nitrogen-containing base.
- the catalyst is a phosphonium or ammonium salt.
- the catalyst is selected from [(R 3 ) 4 P]C1 or [(R 3 ) 4 N]C1, where the radicals R 3 are independently C 1 to C 12 alkyl, C 6 to C 12 aryl, C 7 to C 13 arylalkyl and C 7 to C 13 alkylaryl. It can be envisaged that the catalyst is [(R 3 ) 4 N]C1, where R 3 is selected from methyl, ethyl, iso-propyl, n-butyl and phenyl. It may be envisaged that the catalyst is [(R 3 ) 4 N]Cl where R 3 is selected to be n-butyl.
- the reaction of the compound of formula (II) with the compound of formula (III) takes place in a solvent.
- a solvent At least 5 moles of solvent per mole of compound (III), alternatively from 10 moles to 100 moles of solvent per mole of compound (III), can be used in the process.
- the solvent is an organic solvent.
- the solvent both in the reaction step and in the hydrogenation step is a non-polar organic solvent.
- the solvent is selected from n-pentane, n-hexane, n-heptane, cyclohexane, toluene, diethyl ether, dichloromethane, chloroform, tert-butyl methyl ether, acetone and tetrahydrofuran. It can be provided that the solvent is dichloromethane.
- the reaction of the compound of formula (II) with the compound of formula (III) may be envisaged for 5 minutes to 24 hours, 30 minutes to 12 hours, or 1 hour to 4 hours.
- the method further comprises reacting the product obtained after crystallization with a Grignard reagent.
- R acyl (such as aryl or alkyl)
- Hal halogen (such as Cl or Br).
- Such a compound can be prepared by reacting an acyl halide with magnesium in a suitable organic solvent.
- Suitable organic solvents are those that can form a coordinate bond to the Mg in the R-Mg-Hal through a free pair of electrons.
- An ether preferably a dialkyl ether such as diethyl ether or a cyclic ether such as tetrahydrofuran (THF)
- THF tetrahydrofuran
- the object is also achieved by using a compound described above to produce a solid body containing Si and Ge.
- intermetallic phase also intermetallic compound
- the intermetallic phase shows lattice structures that differ from those of the constituent metals.
- the lattice bond of the different types of atoms is a mixed form of a predominantly metallic bond and smaller proportions of other types of bonds (covalent bond, ionic bond), which means that these phases have special physical and mechanical properties.
- preparing the Si and Ge containing solid comprises heating the compound to a temperature of 300°C or more. It can be envisaged that preparing the Si and Ge containing solid comprises heating the compound to a temperature of 400°C or more. It can be envisaged that preparing the Si and Ge containing solid comprises heating the compound to a temperature of 450°C or more. It can be provided that preparing the Si and Ge-containing solid comprises heating the compound to a temperature of 500°C or more. It can be envisaged that preparing the Si and Ge containing solid comprises heating the compound to a temperature of 550°C or more. It can be envisaged that preparing the Si and Ge containing solid comprises heating the compound to a temperature of 600°C or more.
- the production of the solid body containing Si and Ge includes heating the connection to a temperature of 400.degree. C. to 1000.degree. It can be envisaged that the production of the Si- and Ge-containing solid comprises heating the connection to a temperature of 400°C to 800°C. It can be envisaged that preparing the Si and Ge containing solid comprises heating the compound to a temperature of 450°C to 750°C. It can be envisaged that preparing the Si and Ge containing solid comprises heating the compound to a temperature of 500°C to 700°C. It can be envisaged that preparing the Si and Ge containing solid comprises heating the compound to a temperature of 550°C to 050°C. It can be envisaged that the preparation of the Si and Ge containing solid comprises heating the compound to a temperature of about 600°C.
- the production of the solid body containing Si and Ge includes the deposition of SiGe. It can be provided that the production of the solid body containing Si and Ge includes the simultaneous deposition of Si and Ge. It can be provided that the stoichiometric ratio of Si to Ge in the solid body containing Si and Ge corresponds to the stoichiometric ratio of Si to Ge in the compound of the formula (I). It can be provided that the stoichiometric ratio of Si to Ge in the solid body containing Si and Ge corresponds to the stoichiometric ratio of Si to Ge in the compound of the formula (I) with a deviation of ⁇ 10%.
- the solid body containing Si and Ge may be intended to contain other elements in an amount of 10% by weight or less based on the total weight of the solid body containing Si and Ge.
- the solid body containing Si and Ge may be intended to contain other elements in an amount of 5% by weight or less based on the total weight of the solid body containing Si and Ge.
- the Si and Ge-containing solid may be designed to contain other elements in an amount of 3% by weight or less based on the total weight of the Si and Ge-containing solid.
- the solid body containing Si and Ge may be intended to contain other elements in an amount of 2% by weight or less based on the total weight of the solid body containing Si and Ge.
- the solid body containing Si and Ge may be intended to contain other elements in an amount of 1% by weight or less based on the total weight of the solid body containing Si and Ge.
- the solid body containing Si and Ge may contain other elements in an amount of 0.5% by weight or less based on the total weight of the solid body containing Si and Ge.
- the Si and Ge-containing solid may be designed to contain other elements in an amount of 0.1% by weight or less based on the total weight of the Si and Ge-containing solid.
- the solid body containing Si and Ge may be intended to contain other elements in an amount of 0.01% by weight or less based on the total weight of the solid body containing Si and Ge. It can be provided that the Si and Ge-containing solid contains other elements in an amount of 0.001% by weight or less based on the total weight of the Si and Ge-containing solid.
- the heating of the compound of formula (I) is accompanied by the formation of R'-H and R 2 -H during the preparation of the Si- and Ge-containing solid.
- alkyl refers to the monoradical of a saturated chain or branched hydrocarbon.
- the alkyl group comprises 1 to 12 (about 1 to 10) carbon atoms; H. 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 or 12 carbon atoms, preferably 1 to 8 carbon atoms, alternatively 1 to 6 or 1 to 4 carbon atoms.
- alkyl groups are methyl, ethyl, propyl, iso-propyl, butyl, iso-butyl, tert-butyl, n-pentyl, isopentyl, sec-pentyl, neo-pentyl, 1,2-dimethylpropyl, iso-amyl, n -hexyl, iso-hexyl, sec-hexyl, n-heptyl, iso-heptyl, n-octyl, 2-ethylhexyl, n-nonyl, n-decyl, n-undecyl or n-dodecyl.
- alkenyl refers to the monoradical of a saturated chain or branched hydrocarbon having at least one double bond.
- alkynyl refers to the monoradical of a saturated chain or branched hydrocarbon having at least one triple bond.
- aryl refers to the monoradical of an aromatic cyclic hydrocarbon.
- exemplary aryl groups include cyclopentadienyl, phenyl, indenyl, naphthyl, azulenyl, fluorenyl, anthryl, and phenanthryl.
- cycloalkyl refers to the cyclic, non-aromatic form of an alkyl.
- arylalkyl refers to an aryl group substituted with at least one alkyl, for example toluolyl.
- alkylaryl refers to an alkyl group substituted with at least one aryl, for example 2-phenylethyl.
- halo refers to fluoro, chloro, bromo or iodo.
- the present invention relates to the novel polycyclic silicon-germanium compounds of the formula (I) Corresponding compounds are accessible via a novel synthesis, for example starting from diorganyldichlorogermane and hexachlorodisilane.
- the target compounds (I) can be prepared, for example, by adding tetrabutylammonium chloride and optionally subsequent reaction with a Grignard reagent.
- These polycyclic silicon-germanium compounds are distinguished by their thermolysis behavior, for example during the deposition of pure Si and Ge, with the residue obtained in this way consisting of pure Si and Ge in a stoichiometric ratio.
- Ci (12 mg, 0.009 mmol, 1 eq.) and 0.5 mL Et 2 0 were placed in an NMR tube and an Et 2 0 solution of MeMgBr (3 M, 0.1 mL, 0.30 mmol, 30 eq.) admitted.
- the NMR tube was sealed under vacuum. After about two weeks at room temperature, complete conversion could be observed by NMR spectroscopy.
- the NMR tube was then opened, the contents transferred to a Schlenk flask together with 3 mL Et 2 O and then 0.05 mL while cooling with ice MeOH added. After stirring for 10 minutes, all volatile components were removed and the residue extracted with a total of 7 mL n-hexane.
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PCT/DE2021/100913 WO2022111758A1 (de) | 2020-11-27 | 2021-11-18 | Polycyclische silicium-germanium-verbindungen, verfahren zur herstellung derselben sowie die verwendung derselben zum herstellen eines si- und ge-enthaltenden festkörpers |
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US (1) | US20240025926A1 (de) |
EP (1) | EP4251631A1 (de) |
JP (1) | JP2024503188A (de) |
KR (1) | KR20230112619A (de) |
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US7540920B2 (en) | 2002-10-18 | 2009-06-02 | Applied Materials, Inc. | Silicon-containing layer deposition with silicon compounds |
EP3409645B1 (de) | 2017-06-01 | 2019-10-02 | Evonik Degussa GmbH | Triphenylgermylsilan und trichlorsilyl-trichlorgerman für die erzeugung von germanium-silizium-schichten sowie verfahren zu deren herstellung aus trichlorsilyl-triphenylgerman |
EP3410466B1 (de) | 2017-06-01 | 2020-02-26 | Evonik Operations GmbH | Neue chlorsilylarylgermane, verfahren zu deren herstellung und deren verwendung |
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