Synthesis, molecular structures, and norbornene addition polymerization activity of the neutral nickel catalysts supported by beta-diketiminato [N, N], ketiminato [N, O], and Schiff-Base [N, O] ligands
文献类型:期刊论文
作者 | Zhang D ; Jin GX ; Weng LH ; Wang FS |
刊名 | organometallics
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出版日期 | 2004 |
卷号 | 23期号:13页码:3270-3275 |
关键词 | VINYL-TYPE POLYMERIZATION ETHYLENE POLYMERIZATION OLEFIN POLYMERIZATION METAL-CATALYSTS NICKEL(II)-BASED CATALYSTS ALPHA-OLEFINS COMPLEXES COPOLYMERIZATION STEREOCHEMISTRY PRECURSORS |
ISSN号 | 0276-7333 |
通讯作者 | jin gx |
中文摘要 | a series of neutral nickel complexes [ni(ph)(pph3)(n, o)] with schiff-base ligands (n, o) [n, o = 5-me-3-tert-bu-(ar-n=ch)c6h2o (1, ar = 2,6-me2c6h3; 2, ar = 2,6-i-pr2c6h3)], [ni(ph)(pph3)(n,o)1, with beta-ketiminato ligands (n, o) [n, o = ch3cochc=(ch3)n-ar (3, ar = 2,6-me2c6h3; 4, ar = 2,6-i-pr2c6h3)] and [ni(n, n)(pph3)], and with beta-diketiminato ligands (n, n) [5, n, n = [2,6-i-pr-2(c6h3)n=c(ch3)](2)ch] have been synthesized and characterized. the molecular structures of complexes 1, 4, and 5 have been confirmed by x-ray single-crystal analyses. although their ligands have similar structures, complex 4 possesses a structure similar to that of four-coordination nickel with complex 1, while complex 5 reveals a rare three-coordination nickel geometry. these compounds show high catalytic activities of up to 3.16 x 10(7) g pnb mol(-1) ni h(-1) for the addition polymerization of norbornene in the presence of modified methylaluminoxane (mmao) as cocatalyst. catalytic activities, polymer yield, molecular weights, and molecular weight distributions of polyborbornene have been investigated under various reaction conditions. |
收录类别 | SCI |
语种 | 英语 |
WOS记录号 | WOS:000222093700029 |
公开日期 | 2010-08-17 |
源URL | [http://202.98.16.49/handle/322003/15747] ![]() |
专题 | 长春应用化学研究所_长春应用化学研究所知识产出_期刊论文 |
推荐引用方式 GB/T 7714 | Zhang D,Jin GX,Weng LH,et al. Synthesis, molecular structures, and norbornene addition polymerization activity of the neutral nickel catalysts supported by beta-diketiminato [N, N], ketiminato [N, O], and Schiff-Base [N, O] ligands[J]. organometallics,2004,23(13):3270-3275. |
APA | Zhang D,Jin GX,Weng LH,&Wang FS.(2004).Synthesis, molecular structures, and norbornene addition polymerization activity of the neutral nickel catalysts supported by beta-diketiminato [N, N], ketiminato [N, O], and Schiff-Base [N, O] ligands.organometallics,23(13),3270-3275. |
MLA | Zhang D,et al."Synthesis, molecular structures, and norbornene addition polymerization activity of the neutral nickel catalysts supported by beta-diketiminato [N, N], ketiminato [N, O], and Schiff-Base [N, O] ligands".organometallics 23.13(2004):3270-3275. |
入库方式: OAI收割
来源:长春应用化学研究所
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