FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2022722044> ?p ?o ?g. }

• W2022722044 endingPage "611" @default.
• W2022722044 startingPage "603" @default.
• W2022722044 abstract "A series of chiral ansa zirconocene compounds that feature (i) [Me2Si] and [Me4Si2] bridges and (ii) two tert-butyl substituents on each cyclopentadienyl ring, namely, rac-[Me2Si(CpBut2)2]ZrCl2, rac-[Me2Si(CpBut2)2]Zr(Ph)Cl, rac-[Me2Si(CpBut2)2]ZrMe2, rac-[Me2Si(CpBut2)2]Zr(CO)2, rac-[Me4Si2(CpBut2)2]ZrCl2, and rac-[Me4Si2(CpBut2)2]Zr(CO)2, has been synthesized. In each case, the complex exists as the racemo isomer due to inter-ring steric interactions between the But substituents proximal to the ansa bridge that destabilize the meso isomer. rac-[Me4Si2(CpBut2)2]ZrCl2 is the first structurally characterized ansa zirconocene complex with a [Me4Si2] bridge that adopts a racemo geometry. IR spectroscopic studies on the dicarbonyl complexes (Cp1,3-But2)2Zr(CO)2, rac-[Me2Si(CpBut2)2]Zr(CO)2, and rac-[Me4Si2(CpBut2)2]Zr(CO)2 demonstrate that the [Me2Si] and [Me4Si2] ansa bridges have opposite electronic influences in this system, with the [Me2Si] bridge exerting an electron-withdrawing effect and the [Me4Si2] bridge exerting an electron-donating effect. The [Me2Si] and [Me4Si2] bridges also exert a different influence with respect to olefin polymerization, with {rac-[Me2Si(CpBut2)2]ZrCl2/MAO} being a more active catalyst system for polymerization of ethylene than is either {(Cp1,3-But2)2ZrCl2/MAO} or {rac-[Me4Si2(CpBut2)2]ZrCl2/MAO}." @default.
• W2022722044 created "2016-06-24" @default.
• W2022722044 creator A5024869511 @default.
• W2022722044 creator A5029154722 @default.
• W2022722044 creator A5069634526 @default.
• W2022722044 creator A5072093741 @default.
• W2022722044 creator A5079563365 @default.
• W2022722044 date "2005-01-08" @default.
• W2022722044 modified "2023-10-06" @default.
• W2022722044 title "Chiral <i>Ansa</i> Zirconocene Compounds with [Me₂Si] and [Me₄Si₂] Bridges and with <i>tert</i>-Butyl Ring Substituents: Synthesis and Structural Characterization of the <i>Racemo</i> Complexes <i>r</i><i>ac</i><i>-</i>[Me₂Si(C₅H₂-2,4-Bu^t₂)₂]ZrCl₂ and <i>r</i><i>ac</i><i>-</i>[Me₄Si₂(C₅H₂-2,4-Bu^t₂)₂]ZrCl<sub>2…" @default.
• W2022722044 cites W1500043776 @default.
• W2022722044 cites W1971315173 @default.
• W2022722044 cites W1972310126 @default.
• W2022722044 cites W1987757932 @default.
• W2022722044 cites W1996888732 @default.
• W2022722044 cites W1999158338 @default.
• W2022722044 cites W2010586436 @default.
• W2022722044 cites W2022922721 @default.
• W2022722044 cites W2026022491 @default.
• W2022722044 cites W2028058466 @default.
• W2022722044 cites W2039913904 @default.
• W2022722044 cites W2057309790 @default.
• W2022722044 cites W2061720805 @default.
• W2022722044 cites W2064835541 @default.
• W2022722044 cites W2067898130 @default.
• W2022722044 cites W2068369018 @default.
• W2022722044 cites W2079746546 @default.
• W2022722044 cites W2093265395 @default.
• W2022722044 cites W2095845388 @default.
• W2022722044 cites W2126095237 @default.
• W2022722044 cites W2133269608 @default.
• W2022722044 cites W2151255060 @default.
• W2022722044 cites W2153900045 @default.
• W2022722044 cites W2477440564 @default.
• W2022722044 cites W280063682 @default.
• W2022722044 cites W2951295680 @default.
• W2022722044 cites W34520636 @default.
• W2022722044 cites W390340476 @default.
• W2022722044 doi "https://doi.org/10.1021/om049273j" @default.
• W2022722044 hasPublicationYear "2005" @default.
• W2022722044 type Work @default.
• W2022722044 sameAs 2022722044 @default.
• W2022722044 citedByCount "7" @default.
• W2022722044 countsByYear W20227220442013 @default.
• W2022722044 countsByYear W20227220442015 @default.
• W2022722044 countsByYear W20227220442017 @default.
• W2022722044 countsByYear W20227220442018 @default.
• W2022722044 countsByYear W20227220442020 @default.
• W2022722044 crossrefType "journal-article" @default.
• W2022722044 hasAuthorship W2022722044A5024869511 @default.
• W2022722044 hasAuthorship W2022722044A5029154722 @default.
• W2022722044 hasAuthorship W2022722044A5069634526 @default.
• W2022722044 hasAuthorship W2022722044A5072093741 @default.
• W2022722044 hasAuthorship W2022722044A5079563365 @default.
• W2022722044 hasConcept C100776233 @default.
• W2022722044 hasConcept C126322002 @default.
• W2022722044 hasConcept C155647269 @default.
• W2022722044 hasConcept C161790260 @default.
• W2022722044 hasConcept C178790620 @default.
• W2022722044 hasConcept C181458950 @default.
• W2022722044 hasConcept C185592680 @default.
• W2022722044 hasConcept C188027245 @default.
• W2022722044 hasConcept C201194858 @default.
• W2022722044 hasConcept C2778597550 @default.
• W2022722044 hasConcept C2780378348 @default.
• W2022722044 hasConcept C2994428872 @default.
• W2022722044 hasConcept C35396096 @default.
• W2022722044 hasConcept C44228677 @default.
• W2022722044 hasConcept C51886252 @default.
• W2022722044 hasConcept C521977710 @default.
• W2022722044 hasConcept C534791751 @default.
• W2022722044 hasConcept C71240020 @default.
• W2022722044 hasConcept C71924100 @default.
• W2022722044 hasConcept C8010536 @default.
• W2022722044 hasConceptScore W2022722044C100776233 @default.
• W2022722044 hasConceptScore W2022722044C126322002 @default.
• W2022722044 hasConceptScore W2022722044C155647269 @default.
• W2022722044 hasConceptScore W2022722044C161790260 @default.
• W2022722044 hasConceptScore W2022722044C178790620 @default.
• W2022722044 hasConceptScore W2022722044C181458950 @default.
• W2022722044 hasConceptScore W2022722044C185592680 @default.
• W2022722044 hasConceptScore W2022722044C188027245 @default.
• W2022722044 hasConceptScore W2022722044C201194858 @default.
• W2022722044 hasConceptScore W2022722044C2778597550 @default.
• W2022722044 hasConceptScore W2022722044C2780378348 @default.
• W2022722044 hasConceptScore W2022722044C2994428872 @default.
• W2022722044 hasConceptScore W2022722044C35396096 @default.
• W2022722044 hasConceptScore W2022722044C44228677 @default.
• W2022722044 hasConceptScore W2022722044C51886252 @default.
• W2022722044 hasConceptScore W2022722044C521977710 @default.
• W2022722044 hasConceptScore W2022722044C534791751 @default.
• W2022722044 hasConceptScore W2022722044C71240020 @default.
• W2022722044 hasConceptScore W2022722044C71924100 @default.
• W2022722044 hasConceptScore W2022722044C8010536 @default.
• W2022722044 hasIssue "4" @default.
• W2022722044 hasLocation W20227220441 @default.
• W2022722044 hasOpenAccess W2022722044 @default.
• W2022722044 hasPrimaryLocation W20227220441 @default.

• next