FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2024281144> ?p ?o ?g. }

• W2024281144 endingPage "93" @default.
• W2024281144 startingPage "81" @default.
• W2024281144 abstract "A series of ethylene-bridged C1-symmetric ansa-(3-R-indenyl)(fluorenyl) zirconocene complexes 3a–i (R = 2-[2-(4-methylphenyl)propyl], 3a; R = 2-[2-(3,5-dimethylphenyl)propyl], 3b; R = 2-(2-benzylpropyl), 3c; R = 2-methylbenzyl, 3d; R = 2-(2-cyclohexylpropyl), 3e; R = 2-[2-(1-cyclohexenyl)propyl], 3f; R = 2-(2-n-butylpropyl), 3g; R = cyclohexyl, 3h; R = iPr, 3i) were synthesized by a salt metathesis method and characterized by NMR spectroscopy, elemental analysis (or HRMS) and X-ray diffraction (3e and 3h). Upon activation with methylaluminoxane, most of these zirconocene complexes exhibited sufficient catalytic activities up to 2.5 × 105 g C6/(mol-Zr·h) and high selectivities up to 99% toward propylene dimerization, affording 2-methyl-1-pentene as the major isomer which was confirmed by gas chromatography. Remarkably, the selectivity and activity of complexes 3a–i were significantly influenced by the structural features of the substituent on the 3-position of indenyl ring: a pendant aryl or alkyl group linked by a quaternary carbon bridge provided the complex with high selectivities in the range of 89.9–99.0% for 2-methyl-1-pentene and low to moderate catalytic activities; the lack of a quaternary carbon bridge within the substituent would lead to mainly polypropylenes of low molecular weight. The steric hindrance around the active metal center induced by the pendant group might be responsible for the catalytic dimerization behavior, and the presumed mechanism was discussed. In addition, for complexes 3h and 3i, the selectivity for propylene dimerization could also be enhanced with the increase of reaction temperature. Noticeably, most of these ansa-zirconocene complexes exhibit excellent thermal stability at 100 °C, which is important with regard to industrial application." @default.
• W2024281144 created "2016-06-24" @default.
• W2024281144 creator A5045383017 @default.
• W2024281144 creator A5046560483 @default.
• W2024281144 creator A5067956367 @default.
• W2024281144 creator A5074734882 @default.
• W2024281144 date "2014-07-01" @default.
• W2024281144 modified "2023-10-13" @default.
• W2024281144 title "Ethylene-bridged C1-symmetric ansa-(3-R-indenyl)(fluorenyl) zirconocene complexes for propylene dimerization or polymerization: The effect of R group" @default.
• W2024281144 cites W1971241185 @default.
• W2024281144 cites W1974221494 @default.
• W2024281144 cites W1974681653 @default.
• W2024281144 cites W1976210887 @default.
• W2024281144 cites W1983682338 @default.
• W2024281144 cites W1993670119 @default.
• W2024281144 cites W2008430165 @default.
• W2024281144 cites W2011841261 @default.
• W2024281144 cites W2016593827 @default.
• W2024281144 cites W2016700810 @default.
• W2024281144 cites W2019832128 @default.
• W2024281144 cites W2025163751 @default.
• W2024281144 cites W2027514558 @default.
• W2024281144 cites W2028813282 @default.
• W2024281144 cites W2030762026 @default.
• W2024281144 cites W2036077965 @default.
• W2024281144 cites W2036148494 @default.
• W2024281144 cites W2044955865 @default.
• W2024281144 cites W2048260303 @default.
• W2024281144 cites W2059020082 @default.
• W2024281144 cites W2059424789 @default.
• W2024281144 cites W2060205647 @default.
• W2024281144 cites W2062629942 @default.
• W2024281144 cites W2063299583 @default.
• W2024281144 cites W2071314905 @default.
• W2024281144 cites W2078237389 @default.
• W2024281144 cites W2081314151 @default.
• W2024281144 cites W2087637186 @default.
• W2024281144 cites W2088299351 @default.
• W2024281144 cites W2090474375 @default.
• W2024281144 cites W2115715490 @default.
• W2024281144 cites W2139974755 @default.
• W2024281144 cites W2158584214 @default.
• W2024281144 cites W2321520136 @default.
• W2024281144 cites W2331263187 @default.
• W2024281144 cites W2951861141 @default.
• W2024281144 doi "https://doi.org/10.1016/j.poly.2014.03.019" @default.
• W2024281144 hasPublicationYear "2014" @default.
• W2024281144 type Work @default.
• W2024281144 sameAs 2024281144 @default.
• W2024281144 citedByCount "6" @default.
• W2024281144 countsByYear W20242811442015 @default.
• W2024281144 countsByYear W20242811442018 @default.
• W2024281144 countsByYear W20242811442019 @default.
• W2024281144 countsByYear W20242811442021 @default.
• W2024281144 crossrefType "journal-article" @default.
• W2024281144 hasAuthorship W2024281144A5045383017 @default.
• W2024281144 hasAuthorship W2024281144A5046560483 @default.
• W2024281144 hasAuthorship W2024281144A5067956367 @default.
• W2024281144 hasAuthorship W2024281144A5074734882 @default.
• W2024281144 hasConcept C118792377 @default.
• W2024281144 hasConcept C155647269 @default.
• W2024281144 hasConcept C161790260 @default.
• W2024281144 hasConcept C178790620 @default.
• W2024281144 hasConcept C185592680 @default.
• W2024281144 hasConcept C188027245 @default.
• W2024281144 hasConcept C201194858 @default.
• W2024281144 hasConcept C2777174529 @default.
• W2024281144 hasConcept C2778597550 @default.
• W2024281144 hasConcept C2778689049 @default.
• W2024281144 hasConcept C2780263894 @default.
• W2024281144 hasConcept C2780299520 @default.
• W2024281144 hasConcept C2780446808 @default.
• W2024281144 hasConcept C2781076698 @default.
• W2024281144 hasConcept C44228677 @default.
• W2024281144 hasConcept C46062151 @default.
• W2024281144 hasConcept C521977710 @default.
• W2024281144 hasConcept C71240020 @default.
• W2024281144 hasConceptScore W2024281144C118792377 @default.
• W2024281144 hasConceptScore W2024281144C155647269 @default.
• W2024281144 hasConceptScore W2024281144C161790260 @default.
• W2024281144 hasConceptScore W2024281144C178790620 @default.
• W2024281144 hasConceptScore W2024281144C185592680 @default.
• W2024281144 hasConceptScore W2024281144C188027245 @default.
• W2024281144 hasConceptScore W2024281144C201194858 @default.
• W2024281144 hasConceptScore W2024281144C2777174529 @default.
• W2024281144 hasConceptScore W2024281144C2778597550 @default.
• W2024281144 hasConceptScore W2024281144C2778689049 @default.
• W2024281144 hasConceptScore W2024281144C2780263894 @default.
• W2024281144 hasConceptScore W2024281144C2780299520 @default.
• W2024281144 hasConceptScore W2024281144C2780446808 @default.
• W2024281144 hasConceptScore W2024281144C2781076698 @default.
• W2024281144 hasConceptScore W2024281144C44228677 @default.
• W2024281144 hasConceptScore W2024281144C46062151 @default.
• W2024281144 hasConceptScore W2024281144C521977710 @default.
• W2024281144 hasConceptScore W2024281144C71240020 @default.
• W2024281144 hasFunder F4320321001 @default.
• W2024281144 hasFunder F4320321106 @default.
• W2024281144 hasFunder F4320335787 @default.

• next