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significant reactions » significant reductions (Expand Search), significant reduction (Expand Search), significant interactions (Expand Search)
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significant reactions » significant reductions (Expand Search), significant reduction (Expand Search), significant interactions (Expand Search)
changes decrease » larger decrease (Expand Search), change increases (Expand Search), largest decrease (Expand Search)
reactions play » reactions a (Expand Search), interactions play (Expand Search)
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Solution XAS Analysis for Exploring Active Species in Syndiospecific Styrene Polymerization and 1‑Hexene Polymerization Using Half-Titanocene–MAO Catalysts: Significant Changes in...
Published 2019“…Mechanistic studies through Ti K-edge XANES and EXAFS spectra of the catalyst solution for 1-hexene polymerization using Cp*TiX<sub>2</sub>(O-2,6-<i><sup>i</sup></i>Pr<sub>2</sub>C<sub>6</sub>H<sub>3</sub>) [X = Cl (<b>1</b>), Me (<b>2</b>)]–MAO catalysts and for syndiospecific styrene polymerization using (<i><sup>t</sup></i>BuC<sub>5</sub>H<sub>4</sub>)TiCl<sub>2</sub>(O-2,6-<i><sup>i</sup></i>Pr<sub>2</sub>C<sub>6</sub>H<sub>3</sub>) (<b>3</b>)–MAO catalyst have been explored. Significant changes in the XANES spectrum (low energy shift in the edge peak, in addition to decrease in intensities of two pre-edge peaks) were observed when styrene (200 equiv) was added into a toluene solution containing <b>3</b> and MAO, strongly suggesting that the complex <b>3</b> [Ti(IV)] was reduced to Ti(III) by addition of styrene under these conditions. …”
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Top 20 genes with significantly decreased abundance in Aco<sup>R</sup> cells.
Published 2021Subjects: -
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