| SYNTHESIS OF cis-1, 4-POLYBUTADIENE WITH NICKEL CATALYST INVESTIGATIONS ON INTERACTIONS BETWEEN THE CATALYTIC COMPONENTS BY USING UV-VIS SPECTRUM |
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| 作者姓名： | 陈滇宝 许光 唐学明 |
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| 作者单位： | Qingdao College of Chemical Technology，Qingdao，Qingdao College of Chemical Technology，Qingdao，Qingdao College of Chemical Technology，Qingdao |
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| 摘 要： | Ni(Ⅱ) naphthenate in hydrogenated gasoline or toluene will appear light green, which is the result of absorption in the red and blue bands of the spectrum. The three peaks caused by the spin-allowed d-d transitions are 403, 680, and 1170nm respectively, and are similar to those of Ni(H_2O)_6~(+2). The configuration of Ni(Ⅱ) complex is octabedral.In a two-component system of Ni(naph)_2-Al(i-Bu)_3, the naphthenate ligand attached to Ni(Ⅱ) can be exchanged for the alkyl group on tri-isobutylaluminium, if Al(i-Bu)_3/Ni(naph)_2 in a system. containing metalalkyl and naphthenate does not exceed the value of 0.53. At a higher ratio, Al(i-Bu)_3/Ni(naph)_2>0.53, Ni(Ⅱ) is reduced to Ni(Ⅰ) and Ni(O).In a two-component system Ni(naph)_2-BF_3·OEt_2, a part of the naphthenate can be exchanged for halogen. A new Ni(Ⅱ) complex is formed, which consists of three new d-d bands in the region 360-1660 nm.
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| 收稿时间： | 1986-01-04 |
SYNTHESIS OF cis-1, 4-POLYBUTADIENE WITH NICKEL CATALYST INVESTIGATIONS ON INTERACTIONS BETWEEN THE CATALYTIC COMPONENTS BY USING UV-VIS SPECTRUM |
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| CHEN Dianbao,XU Guang,TANG Xueming.SYNTHESIS OF cis-1, 4-POLYBUTADIENE WITH NICKEL CATALYST INVESTIGATIONS ON INTERACTIONS BETWEEN THE CATALYTIC COMPONENTS BY USING UV-VIS SPECTRUM[J].Chinese Journal of Polymer Science,1987,0(1):45-52. |
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| Authors: | CHEN Dianbao XU Guang TANG Xueming |
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| Institution: | Qingdao College of Chemical Technology; Qingdao |
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| Abstract: | Ni(Ⅱ) naphthenate in hydrogenated gasoline or toluene will appear light green, which is the result of absorption in the red and blue bands of the spectrum. The three peaks caused by the spin-allowed d-d transitions are 403, 680, and 1170nm respectively, and are similar to those of Ni(H2O)6+2. The configuration of Ni(Ⅱ) complex is octabedral.In a two-component system of Ni(naph)2-Al(i-Bu)3, the naphthenate ligand attached to Ni(Ⅱ) can be exchanged for the alkyl group on tri-isobutylaluminium, if Al(i-Bu)3/Ni(naph)2 in a system containing metalalkyl and naphthenate does not exceed the value of 0.53.At a higher ratio,Al(i-Bu)3/Ni(naph)2>0.53,Ni(Ⅱ) is reduced to Ni(I) and Ni(O).In a two-component system Ni(naph)2-BF3·OEt2,a part of the naphthenate can be exchanged for halogen.A new Ni(Ⅱ)complex is formed,which consists of three new d-d bands in the region 360-1660nm. |
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| Keywords: | cis-1 4-polybutadiene Nickel catalyst Ziegler-Natta catalyst UV-VIS spectrum |
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