| Synthesis and Characterization of {2-Formyl-6-[1-(2,4,6-trimethylphenyl)]-4- chlorophenoxy}_2Ni and Its Ethylene Oligomerization |
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| 作者姓名： | ZHANG Dong-Henga DU Jian-Longb HAN Ling-Qina SUN Wen-Huaa② a |
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| 作者单位： | ZHANG Dong-Henga DU Jian-Longb HAN Ling-Qina SUN Wen-Huaa② a (Key Laboratory of Engineering Plastics，Institute of Chemistry，The Chinese Academy of Sciences，Beijing 100080; State Key Laboratory of Structural Chemistry，Fujian Institute of Research on the Structure of Matter，The Chinese Academy of Sciences，Fuzhou 350002，China) b(College of Chemistry & Environmental Science，Hebei University，Baoding 071002，China) |
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| 基金项目： | This work was supported by the National Natural Science Foundation of China (No. 20272062 and 20473099) and National 863 Project (2002AA333060) |
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| 摘 要： | 1 INTRODUCTION Late-transition metal complexes as catalysts for ethylene oligomerization and polymerization have become an intense research subject1]. Nickel com- plexes are in hot point due to the significant achieve- ments of academic research2, 3] and industrial appli- cations4, 5]. The nickel complexes with bidentate P,O] ligands were industrialized as the SHOP pro- cess for α-olefins4]. It is supposed that late transition metal complexes have a strong propensity of under- goi…
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Synthesis and Characterization of { 2- Formyl- 6- [ 1- (2,4,6- trimethylphenyl) ]-4-chlorophenoxy}2Ni and Its Ethylene Oligomerization |
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| ZHANG Dong-Heng,DU Jian-Long,HAN Ling-Qin,SUN Wen-hua.Synthesis and Characterization of {2-Formyl-6-[1-(2,4,6-trimethylphenyl)]-4- chlorophenoxy}_2Ni and Its Ethylene Oligomerization[J].Chinese Journal of Structural Chemistry,2005,24(8). |
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| Authors: | ZHANG Dong-Heng DU Jian-Long HAN Ling-Qin SUN Wen-hua |
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| Abstract: | The title nickel complex (C34H30Cl2N2NiO4, Mr = 660.21) has been synthesized and its crystal structure was determined by single-crystal X-ray structure analysis.It crystallizes in the monoclinic system, space group P21/n with a = 11.026(8), b = 11.491(8), c = 12.119(9)(。A), β =91.328(13)°, Z= 2, V= 1535.0(19)(。A)3, Dc = 1,428 g/cm3, F(000) = 684 andμ(MoKα) = 0.848 mm～1The structure was refined to R = 0.0544 for 1813 observed reflections with I ＞ 2σ(I) and wR =0.0867 for 3132 unique reflections.The molecule of the complex is high symmetrical.Ni(Ⅱ) atom is located in the symmetric center and coordinated to two phenolic oxygen and two imino nitrogen atoms, forming two six-membered rings.Upon activation with methylaluminoxane (MAO), it is active for ethylene oligomerization. |
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| Keywords: | nickel complex salicylaldimine ethylene oligomerization |
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