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Reactions of Group 3 Metal Alkyls in the Gas Phase*: Part 8.—Homogeneous Thermal Unimolecular Elimination of Ethylene from Triethylaluminium

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dc.contributor.author Cocks, Alan T.
dc.contributor.author Egger, Kurt W.
dc.date.accessioned 2025-02-04T14:35:20Z
dc.date.available 2025-02-04T14:35:20Z
dc.date.issued 1972
dc.identifier.uri http://dspace.bits-pilani.ac.in:8080/jspui/handle/123456789/17169
dc.description.abstract The kinetics of the homogeneous gas-phase elimination of ethylene from triethylaluminium have been studied in the presence of excess propene in the temperature range 426-488 K. The observed first-order rate constants based on the loss of ethyl groups fit the Arrhenius relationship, log k'o/s"1 10.93 ±0.13-(30.05 ±0.27)/0, where 0 = 4.58 x 10-3 Tin units of kcal mol"1t [= 10.93 ± 0.13 —(125.7 ±1.1)/19.15 x 10-3 T in units of kJ mol-1]- These activation parameters arc compatible with the 4-centrc polar transition state proposed for olefin eliminations from other Group 3 metal alkyls, and the ctTect of ^-substitution on the rate of elimination is additive. The activation energy for the back-addition of ethylene to dialkylaluminium hydride is estimated to be 4.9 kcal mol-1. en_US
dc.language.iso en en_US
dc.publisher Journal of the Chemical Society : Faraday Transaction - I. The Chemical Society, London. 1972, 68 (3) en_US
dc.subject Chemistry en_US
dc.subject Metal Alkyls en_US
dc.subject Triethylaluminium en_US
dc.subject Journal of the Chemical Society : Faraday Transaction - I en_US
dc.title Reactions of Group 3 Metal Alkyls in the Gas Phase*: Part 8.—Homogeneous Thermal Unimolecular Elimination of Ethylene from Triethylaluminium en_US
dc.type Article en_US


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