| 高占先,熊德琪,周科衍,孟庆伟.1-丁烯齐聚反应——Ⅵ.羧酸镍/乙基氯化铝催化体系活性物种的测定[J].分子催化,1992,(4): |
| 1-丁烯齐聚反应——Ⅵ.羧酸镍/乙基氯化铝催化体系活性物种的测定 |
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| DOI： |
| 中文关键词: 丁烯齐聚,羧酸镍/有机氯化铝催化剂,氢化镍活性物种 |
| 英文关键词:Butene oligomerization, Nickel carboxylate/organo aluminium chloride catalysts, Nickel hydride active species. |
| 基金项目: |
| 高占先 熊德琪 周科衍 孟庆伟 |
| 大连理工大学化工学院化学系，大连理工大学化工学院化学系，大连理工大学化工学院化学系，化工部光明化工研究所 大连 116012，大连 116012，大连 116012 |
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| 中文摘要: |
| 本文利用羧酸镍/乙基氯化铝催化体系催化1-丁烯齐聚反应,用核磁共振和红外光谱技术测定了该体系的催化活性物种。对2-乙基已酸镍/倍半乙基氯化铝体系,在~1H—NMR谱上,于—30.2——33.5 ppm处出现一组信号。对2-乙基己酸镍/乙基二氯化铝体系,在~1H—NMR谱上,分别于-30.2和-34.4ppm处出现信号,在IR谱上,在1955.7cm~(-1)处出现吸收峰。确证具有催化活性的物种为镍氢配合物。 |
| 英文摘要: |
| In this paper 1- butene oligomerization catalyzed by nickel carboxylate and ethyl aluminum chloride was studied, and the catalytically active species is determined under strictly air-free conditions with NMR spectroscopy and IR absorption spectroscopy. The signals at -32. 0--33. 5 ppm in 1H-NMR spectrum for (CH3(CH2)3(CH2CH3)CHCOO)2 Ni/Et3Al2Cl3/l-butene oligomerization system are observed. Two signals at -30. 2 and -34. 4 ppm respectively in the 1H-NMR spectrum, and an absorption peak at 1955. 7 cm-1in the IR absorption spectrum for (CH3(CH2)3(CH2CH3)CHCOO)2 Ni/EtAlCl2/1-butene oligomerization system are observed also. These signals are attributed to the Ni -H bond of the catalytically active species, nickel hydride complexes. |
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