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A Kinetic and Mechanistic Study of the Reaction between Bis-p-ethoxyphenyl Ditelluride and Molecular Iodine in Solution

DOI: 10.1039/DT9830001071

Source and publish data:

Journal of the Chemical Society, Dalton Transactions p. 1071 - 1074 (1983)

Update date:2022-08-03

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Authors:

Mahdi, Rahim T.Mahdi, Rahim T.

Miller, J. DavidMiller, J. David

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Article abstract of DOI:10.1039/DT9830001071

The title reaction in toluene has been examined spectrophotometrically.The data are consistent with equations (1)-(3) (R = p-EtOC6H4). (1), (2), (3).The rate constants k1 and k3 are 56 +/- 2 dm3 mol-1 s-1 at 7 deg C and 6.2 * 10-4 s-1 at 25 deg C respectively.The equilibrium constant K2 is 1570 dm3 mol-1 at 25 deg C, and ΔH2 = -22 +/- 4 kJ mol-1.The activation parameters for the final step are ΔH<*> = 44 +/- 5 kJ mol-1 and ΔS<*> = -160 +/- 15 J K-1 mol-1.

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