Synthesis and Characterization of A Polynuclear Yttrium Trifluoroethoxide and Its Activity for Oligomerization of Phenyl Isocyanate
A polynuclear yttrium trifluoroethoxide was synthesized and its activity for the oligomerization of phenyl isocyanate was tested. Reaction of anhydrous YC13 with CF3CH2ONa in a 1 ： 3 molar ratio in THF at room temperature, after workup, gave complex 1 as colorless crystals. The composition of comple...
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| Published in | Journal of rare earths Vol. 24; no. 4; pp. 509 - 512 |
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| Main Author | |
| Format | Journal Article |
| Language | English |
| Published |
Elsevier B.V
01.08.2006
Key Laboratory of Organic Synthesis of Jiangsu Province, Department of Chemistry and Chemical Engineering, Suzhou University, Suzhou 215123, China |
| Subjects | |
| Online Access | Get full text |
| ISSN | 1002-0721 2509-4963 |
| DOI | 10.1016/S1002-0721(06)60153-1 |
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| Abstract | A polynuclear yttrium trifluoroethoxide was synthesized and its activity for the oligomerization of phenyl isocyanate was tested. Reaction of anhydrous YC13 with CF3CH2ONa in a 1 ： 3 molar ratio in THF at room temperature, after workup, gave complex 1 as colorless crystals. The composition of complex 1 is [Y（OCH2CF3）3]6ONa2（THF）12, which was identified by elemental analysis and ^1H NMR. Further X-ray structure determination reveals that complex 1 is a polynuclear ion pair compound, [Y6（μ6-O）（OCH2CF3）18]^2- [Na（THF）6]2＋ （1）. The crystal data of complex 1 are trigonal, P-3 space group, a = 1.78440（14） nm, b = 1.78440（14） nm, c = 1.27395（12） nm, γ= 120°, V=3.5129（5） nm^3, Z = 1, Dc = 1.607 mg·m^-3, μ = 2.591 mm^- 1（Mo Ka）, F（000） = 1710, R = 0.067, wR = 0. 182. Preliminary results demonstrated that complex 1 is a highly effective catalyst for the oligomerization of phenyl isocyanate. |
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| AbstractList | O6; A polynuclear yttrium trifluoroethoxide was synthesized and its activity for the oligomerization of phenyl isocyanate was tested. Reaction of anhydrous YCl3 with CF3CH2ONa in a 1:3 molar ratio in THF at room temperature, after workup, gave complex 1 as colorless crystals. The composition of complex 1 is [Y(OCH2CF3)3]6ONa2(THF)12, which was identified by elemental analysis and 1H NMR. Further X-ray structure determination reveals that complex 1 is a polynuclear ion pair compound, [Y6(μ6-O)(OCH2CF3)18]2-[Na(THF)6]+2 (1). The crystal data of complex 1 are trigonal, P-3 space group, a=1.78440(14) nm, b=1.78440(14) nm, c=1.27395(12) nm, γ=120°, V=3.5129(5) nm3, Z=1, Dc=1.607 mg·m-3, μ=2.591 mm-1 (Mo Kα), F(000)=1710, R=0.067, wR=0.182. Preliminary results demonstrated that complex 1 is a highly effective catalyst for the oligomerization of phenyl isocyanate. A polynuclear yttrium trifluoroethoxide was synthesized and its activity for the oligomerization of phenyl isocyanate was tested. Reaction of anhydrous YCl3 with CF3CH2ONa in a 1:3 molar ratio in THF at room temperature, after workup, gave complex 1 as colorless crystals. The composition of complex 1 is [Y (OCH2CF3)3]6ONa2(THF)12, which was identified by elemental analysis and 1H NMR. Further X-ray structure determination reveals that complex 1 is a poly-nuclear ion pair compound, [Y6(mu6-O) (OCH2CF3)18]2- [Na(THF)6]2+ (1). The crystal data of complex 1 are trigonal, P-3 space group, a = 1.78440(14) nm, b = 1.78440(14) nm, c = 1.27395 (12) nm, gamma = 120 deg , V = 3.5129(5) nm3, Z = 1, Dc = 1.607 mg*m-3, mu = 2.591 mm-1(Mo Kalpha), F(000) = 1710, R = 0.067, wR = 0.182. Preliminary results demonstrated that complex 1 is a highly effective catalyst for the oligomerization of phenyl isocyanate. A polynuclear yttrium trifluoroethoxide was synthesized and its activity for the oligomerization of phenyl isocyanate was tested. Reaction of anhydrous YC13 with CF3CH2ONa in a 1 ： 3 molar ratio in THF at room temperature, after workup, gave complex 1 as colorless crystals. The composition of complex 1 is [Y（OCH2CF3）3]6ONa2（THF）12, which was identified by elemental analysis and ^1H NMR. Further X-ray structure determination reveals that complex 1 is a polynuclear ion pair compound, [Y6（μ6-O）（OCH2CF3）18]^2- [Na（THF）6]2＋ （1）. The crystal data of complex 1 are trigonal, P-3 space group, a = 1.78440（14） nm, b = 1.78440（14） nm, c = 1.27395（12） nm, γ= 120°, V=3.5129（5） nm^3, Z = 1, Dc = 1.607 mg·m^-3, μ = 2.591 mm^- 1（Mo Ka）, F（000） = 1710, R = 0.067, wR = 0. 182. Preliminary results demonstrated that complex 1 is a highly effective catalyst for the oligomerization of phenyl isocyanate. A polynuclear yttrium trifluoroethoxide was synthesized and its activity for the oligomerization of phenyl isocyanate was tested. Reaction of anhydrous YCl 3 with CF 3CH 2ONa in a 1:3 molar ratio in THF at room temperature, after workup, gave complex 1 as colorless crystals. The composition of complex 1 is [Y (OCH 2CF 3) 3] 6ONa 2(THF) 12, which was identified by elemental analysis and 1H NMR. Further X-ray structure determination reveals that complex 1 is a poly-nuclear ion pair compound, [Y 6(μ 6-O) (OCH 2CF 3) 18] 2− [Na(THF) 6] 2 + ( 1). The crystal data of complex 1 are trigonal, P-3 space group, a = 1.78440(14) nm, b = 1.78440(14) nm, c = 1.27395 (12) nm, γ = 120°, V = 3.5129(5) nm 3, Z = 1, D c = 1.607 mg·m −3, μ = 2.591 mm −1(Mo Kα), F(000) = 1710, R = 0.067, wR = 0.182. Preliminary results demonstrated that complex 1 is a highly effective catalyst for the oligomerization of phenyl isocyanate. |
| Author | 彭红梅 姚英明 邓明宇 张勇 沈琪 |
| AuthorAffiliation | Key Laboratory of Organic Synthesis of Jiangsu Province, Department of Chemistry and Chemical Engineering, Suzhou University, Suzhou 215123, China |
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| Cites_doi | 10.1021/cr00006a007 10.1021/om970088y 10.1021/ja9534516 10.1002/marc.1996.030170101 10.1016/S0277-5387(00)80281-8 10.1021/ic00301a021 10.1016/S0277-5387(97)00487-7 |
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| Keywords | lanthanide alkoxo complex inorganic chemistry trifluoroethoxide O631.5 crystal structure O614.33 rare earths |
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| Snippet | A polynuclear yttrium trifluoroethoxide was synthesized and its activity for the oligomerization of phenyl isocyanate was tested. Reaction of anhydrous YC13... A polynuclear yttrium trifluoroethoxide was synthesized and its activity for the oligomerization of phenyl isocyanate was tested. Reaction of anhydrous YCl 3... A polynuclear yttrium trifluoroethoxide was synthesized and its activity for the oligomerization of phenyl isocyanate was tested. Reaction of anhydrous YCl3... O6; A polynuclear yttrium trifluoroethoxide was synthesized and its activity for the oligomerization of phenyl isocyanate was tested. Reaction of anhydrous... |
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| Title | Synthesis and Characterization of A Polynuclear Yttrium Trifluoroethoxide and Its Activity for Oligomerization of Phenyl Isocyanate |
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