1983
DOI: 10.1002/chin.198308085
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ChemInform Abstract: HYDROGENATION OF OLEFINS AND POLYMERIZATION OF ETHENE OVER CHROMIUM OXIDE/SILICA CATALYSTS. III. HYDROGENATION OF OLEFINS AND HYDROGEN/DEUTERIUM EXCHANGE

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“…This study shows that heterolytic C-H activation of ethylene is likely a key step in ethylene polymerization, a mechanism that conserves the Cr-oxidation state during catalysis. Heterolytic C-H activation is common on supported metal species, and is probably a key step in alkane dehydrogenation using Cr(III)/Al 2 O 3 catalysts [31], C-H activation on alumina surfaces [32][33][34], hydrogenation reactions involving supported chromium species [35], and in ethylene polymerization on well-defined Cr(III)-silicates [15]. In addition, the presence of Cr(III) sites according to EPR and the striking similarity of the IR Fig.…”
Section: Discussionmentioning
confidence: 99%
“…This study shows that heterolytic C-H activation of ethylene is likely a key step in ethylene polymerization, a mechanism that conserves the Cr-oxidation state during catalysis. Heterolytic C-H activation is common on supported metal species, and is probably a key step in alkane dehydrogenation using Cr(III)/Al 2 O 3 catalysts [31], C-H activation on alumina surfaces [32][33][34], hydrogenation reactions involving supported chromium species [35], and in ethylene polymerization on well-defined Cr(III)-silicates [15]. In addition, the presence of Cr(III) sites according to EPR and the striking similarity of the IR Fig.…”
Section: Discussionmentioning
confidence: 99%