JP6589112B2 - シクロペンタジエニルニッケル錯体化合物 - Google Patents
シクロペンタジエニルニッケル錯体化合物 Download PDFInfo
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- JP6589112B2 JP6589112B2 JP2017202842A JP2017202842A JP6589112B2 JP 6589112 B2 JP6589112 B2 JP 6589112B2 JP 2017202842 A JP2017202842 A JP 2017202842A JP 2017202842 A JP2017202842 A JP 2017202842A JP 6589112 B2 JP6589112 B2 JP 6589112B2
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- nickel
- cyclopentadienyl
- complex compound
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- film
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- 150000001875 compounds Chemical class 0.000 title claims description 40
- TWKFYCJMKMVFCV-UHFFFAOYSA-N cyclopenta-1,3-diene;nickel Chemical compound [Ni].C=1C=C[CH-]C=1 TWKFYCJMKMVFCV-UHFFFAOYSA-N 0.000 title claims description 24
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 76
- 238000000034 method Methods 0.000 claims description 26
- 229910052759 nickel Inorganic materials 0.000 claims description 26
- 230000015572 biosynthetic process Effects 0.000 claims description 13
- 125000000058 cyclopentadienyl group Chemical group C1(=CC=CC1)* 0.000 claims description 12
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 11
- 229910000480 nickel oxide Inorganic materials 0.000 claims description 9
- GNRSAWUEBMWBQH-UHFFFAOYSA-N oxonickel Chemical compound [Ni]=O GNRSAWUEBMWBQH-UHFFFAOYSA-N 0.000 claims description 9
- 239000000758 substrate Substances 0.000 claims description 9
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 claims description 8
- 238000000231 atomic layer deposition Methods 0.000 claims description 7
- 239000001257 hydrogen Substances 0.000 claims description 6
- 229910052739 hydrogen Inorganic materials 0.000 claims description 6
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 5
- SIPUZPBQZHNSDW-UHFFFAOYSA-N bis(2-methylpropyl)aluminum Chemical compound CC(C)C[Al]CC(C)C SIPUZPBQZHNSDW-UHFFFAOYSA-N 0.000 claims description 4
- HJXBDPDUCXORKZ-UHFFFAOYSA-N diethylalumane Chemical compound CC[AlH]CC HJXBDPDUCXORKZ-UHFFFAOYSA-N 0.000 claims description 4
- TUTOKIOKAWTABR-UHFFFAOYSA-N dimethylalumane Chemical compound C[AlH]C TUTOKIOKAWTABR-UHFFFAOYSA-N 0.000 claims description 4
- 239000003638 chemical reducing agent Substances 0.000 claims description 2
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 claims description 2
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 2
- ZSWFCLXCOIISFI-UHFFFAOYSA-N endo-cyclopentadiene Natural products C1C=CC=C1 ZSWFCLXCOIISFI-UHFFFAOYSA-N 0.000 claims 1
- 125000000217 alkyl group Chemical group 0.000 description 12
- 125000004432 carbon atom Chemical group C* 0.000 description 12
- 229910052782 aluminium Inorganic materials 0.000 description 7
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 7
- -1 Bis (1,3-dimethylcyclopentadienyl) nickel bis (1,3-diethylcyclopentadienyl) nickel bis (1,3-diisopropylcyclopentadienyl) nickel Chemical compound 0.000 description 6
- AUCOAHFOLAGBBH-UHFFFAOYSA-N C(C)(C)C1(C=C(C=C1)C(C)C)[Ni]C1(C=C(C=C1)C(C)C)C(C)C Chemical compound C(C)(C)C1(C=C(C=C1)C(C)C)[Ni]C1(C=C(C=C1)C(C)C)C(C)C AUCOAHFOLAGBBH-UHFFFAOYSA-N 0.000 description 4
- STFOXRDEKSMBFN-UHFFFAOYSA-N CC=1C(C=C(C=1)C)[Ni]C1C(=CC(=C1)C)C Chemical compound CC=1C(C=C(C=1)C)[Ni]C1C(=CC(=C1)C)C STFOXRDEKSMBFN-UHFFFAOYSA-N 0.000 description 4
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 4
- 238000004458 analytical method Methods 0.000 description 4
- 238000003786 synthesis reaction Methods 0.000 description 4
- ZXZMQWZQMZHFOR-UHFFFAOYSA-L azane;dichloronickel Chemical compound N.N.N.N.N.N.Cl[Ni]Cl ZXZMQWZQMZHFOR-UHFFFAOYSA-L 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 125000001424 substituent group Chemical group 0.000 description 3
- WHVLMAWVZINUFX-UHFFFAOYSA-N C[Si](C)(C)C1(C=CC=C1)[Ni]C1(C=CC=C1)[Si](C)(C)C Chemical compound C[Si](C)(C)C1(C=CC=C1)[Ni]C1(C=CC=C1)[Si](C)(C)C WHVLMAWVZINUFX-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 2
- 238000002441 X-ray diffraction Methods 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000004821 distillation Methods 0.000 description 2
- 238000000921 elemental analysis Methods 0.000 description 2
- 235000019253 formic acid Nutrition 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 229910052700 potassium Inorganic materials 0.000 description 2
- 239000011591 potassium Substances 0.000 description 2
- 239000012495 reaction gas Substances 0.000 description 2
- 238000010992 reflux Methods 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 2
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 description 1
- GOMWVPKCTJXRKN-UHFFFAOYSA-N C(C)C1(C=C(C=C1)CC)[Ni]C1(C=C(C=C1)CC)CC Chemical compound C(C)C1(C=C(C=C1)CC)[Ni]C1(C=C(C=C1)CC)CC GOMWVPKCTJXRKN-UHFFFAOYSA-N 0.000 description 1
- XVNLBXDNYYMRQL-UHFFFAOYSA-N CC1(C(=CC(=C1)C)C)[Ni]C1(C(=CC(=C1)C)C)C Chemical compound CC1(C(=CC(=C1)C)C)[Ni]C1(C(=CC(=C1)C)C)C XVNLBXDNYYMRQL-UHFFFAOYSA-N 0.000 description 1
- 229910001111 Fine metal Inorganic materials 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000005229 chemical vapour deposition Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 150000002815 nickel Chemical class 0.000 description 1
- WTNNDNBKPMUIQG-UHFFFAOYSA-N nickel(2+);5-propan-2-ylcyclopenta-1,3-diene Chemical group [Ni+2].CC(C)[C-]1C=CC=C1.CC(C)[C-]1C=CC=C1 WTNNDNBKPMUIQG-UHFFFAOYSA-N 0.000 description 1
- 238000005240 physical vapour deposition Methods 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- IZWIPIIVPHXLTN-UHFFFAOYSA-N potassium;cyclopenta-1,3-diene Chemical compound [K+].C1C=CC=[C-]1 IZWIPIIVPHXLTN-UHFFFAOYSA-N 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000001771 vacuum deposition Methods 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
Classifications
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- 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
- C07F15/00—Compounds containing elements of Groups 8, 9, 10 or 18 of the Periodic Table
- C07F15/04—Nickel compounds
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/44—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating
- C23C16/455—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating characterised by the method used for introducing gases into reaction chamber or for modifying gas flows in reaction chamber
- C23C16/45523—Pulsed gas flow or change of composition over time
- C23C16/45525—Atomic layer deposition [ALD]
- C23C16/45553—Atomic layer deposition [ALD] characterized by the use of precursors specially adapted for ALD
-
- 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
- C07F17/00—Metallocenes
- C07F17/02—Metallocenes of metals of Groups 8, 9 or 10 of the Periodic Table
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- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/06—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the deposition of metallic material
- C23C16/18—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the deposition of metallic material from metallo-organic compounds
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/22—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the deposition of inorganic material, other than metallic material
- C23C16/30—Deposition of compounds, mixtures or solid solutions, e.g. borides, carbides, nitrides
- C23C16/40—Oxides
- C23C16/405—Oxides of refractory metals or yttrium
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- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/44—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating
- C23C16/455—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating characterised by the method used for introducing gases into reaction chamber or for modifying gas flows in reaction chamber
- C23C16/45523—Pulsed gas flow or change of composition over time
- C23C16/45525—Atomic layer deposition [ALD]
- C23C16/45527—Atomic layer deposition [ALD] characterized by the ALD cycle, e.g. different flows or temperatures during half-reactions, unusual pulsing sequence, use of precursor mixtures or auxiliary reactants or activations
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- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/56—After-treatment
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- 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
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
- H01L21/28—Manufacture of electrodes on semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/268
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- 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
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
- H01L21/28—Manufacture of electrodes on semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/268
- H01L21/283—Deposition of conductive or insulating materials for electrodes conducting electric current
- H01L21/285—Deposition of conductive or insulating materials for electrodes conducting electric current from a gas or vapour, e.g. condensation
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Description
Ni(R1 nC5H5−n)2 (I)
[式中:
R1は、各出現においてそれぞれ独立して、炭素数1〜4のアルキル基であり;
nは、2、3または4である。]
で表されるシクロペンタジエニルニッケル錯体化合物が提供される。
Ni(R1 nC5H5−n)2 (I)
で表される。
Ni(Me2C5H3)2
Ni(Et2C5H3)2
Ni(iPr2C5H3)2
Ni(MeEtC5H3)2
Ni(MeiPrC5H3)2
Ni(EtiPrC5H3)2、および
Ni(Me3C5H2)2
から選択される。
ビス(1,3−ジメチルシクロペンタジエニル)ニッケル
ビス(1,3−ジエチルシクロペンタジエニル)ニッケル
ビス(1,3−ジイソプロピルシクロペンタジエニル)ニッケル
ビス(1−メチル−3−エチルシクロペンタジエニル)ニッケル
ビス(1−メチル−3−イソプロピルシクロペンタジエニル)ニッケル
ビス(1−エチル−3−イソプロピルシクロペンタジエニル)ニッケル、および
ビス(1,2,4−トリメチルシクロペンタジエニル)ニッケル
から選択される。
ビス(1,3−ジメチルシクロペンタジエニル)ニッケル
ビス(1,3−ジエチルシクロペンタジエニル)ニッケル
ビス(1,3−ジイソプロピルシクロペンタジエニル)ニッケル
から選択され、特に
ビス(1,3−ジメチルシクロペンタジエニル)ニッケル
が好ましい。
窒素置換した2Lの三口フラスコに、塩化ヘキサアンミンニッケル(II)(55g、237mmol)、1,3−ジメチルシクロペンタジエニルカリウム(64g、484mmol)、および乾燥テトラヒドロフラン(500ml)を加え、6時間加熱還流した。溶媒留去後、減圧蒸留により沸点80℃/0.1Torrの緑色液体を41g得た。
元素分析によると炭素分析値は68.2w%(理論値68.6w%)、水素分析値は7.3w%(理論値7.4w%)であった。また、蛍光X線分析法によりNiの存在を確認した。これにより、ビス(1,3−ジメチルシクロペンタジエニル)ニッケルが得られたことを確認した。得られたビス(1,3−ジメチルシクロペンタジエニル)ニッケル41gは167mmolに相当し、収率は70.5%であった。
窒素置換した2Lの三口フラスコに、塩化ヘキサアンミンニッケル(II)(40g、173mmol)、1,3−ジイソプロピルシクロペンタジエニルカリウム(69g、366mmol)、および乾燥テトラヒドロフラン(500ml)を加え、6時間加熱還流した。溶媒留去後、減圧蒸留により沸点50℃/0.1Torrの緑色液体を47g得た。
元素分析によると炭素分析値は73.5w%(理論値74.0w%)、水素分析値は9.5w%(理論値9.6w%)であった。また、蛍光X線分析法によりNiの存在を確認した。これにより、ビス(1,3−ジイソプロピルシクロペンタジエニル)ニッケルが得られたことを確認した。得られたビス(1,3−ジイソプロピルシクロペンタジエニル)ニッケル47gは132mmolに相当し、収率は76.3%であった。
実施例1および2と同様の方法で、標記化合物を調製した。
実施例1および2と同様の方法で、標記化合物を調製した。
上記実施例1〜4で合成した化合物を用いて、Si基板上に、原子層堆積法(ALD法)を用いて、200サイクル成膜し、ニッケル膜を形成した。使用した化合物と成膜条件を下記表に示す。尚、比較例の化合物は、ビス(イソプロピルシクロペンタジエニル)ニッケルである。成膜の可否は、Ni膜中のO比率が30%未満であり、シート抵抗が500μΩcm未満であるものを「可」と判定した。上記を満たさないものを「不可」と判定した。結果を下記表に示す。
上記実施例1〜4で合成した化合物を3ヶ月保管した後、成膜を行い、Ni膜を成膜した。一方、比較例1の化合物を1ヶ月保管した後、成膜を行ったが、Ni膜を成膜することができなかった。
Claims (6)
- 下記化合物群:
Ni(Me2C5H3)2
Ni(Et2C5H3)2
Ni(iPr2C5H3)2
Ni(MeEtC5H3)2
Ni(MeiPrC5H3)2
Ni(EtiPrC5H3)2、および
Ni(Me3C5H2)2
[式中、
Meは、メチル基であり、
Etは、エチル基であり、
iPrは、イソプロピル基である。]
から選択される、シクロペンタジエニルニッケル錯体化合物。 - 各シクロペンタジエニルに結合するMe、EtおよびiPrの合計が2であり、該Me、EtおよびiPrの位置が、シクロペンタジエニル基の1位および3位である、請求項1に記載のシクロペンタジエニルニッケル錯体化合物。
- 基材上にニッケル層を形成する成膜方法であって、請求項1または2に記載のシクロペンタジエニルニッケル錯体化合物を用いることを特徴とする、成膜方法。
- 原子層堆積法により成膜を行う、請求項3に記載の成膜方法。
- 還元剤として水素またはNH3を用い、基材上で請求項1または2に記載のシクロペンタジエニルニッケル錯体化合物を還元して、ニッケル層を形成する、請求項3または4に記載の成膜方法。
- 請求項1または2に記載のシクロペンタジエニルニッケル錯体化合物を用いて酸化ニッケル層を形成し、次いで、ジエチルアルミニウムハイドライド、ジイソブチルアルミニウムハイドライド、またはジメチルアルミニウムハイドライドを用いて成膜を行い、この成膜処理により、上記酸化ニッケル層を還元してニッケル層とし、同時に該ニッケル層上に酸化アルミニウム層を形成する、請求項3〜5のいずれか1項に記載の成膜方法。
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