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.

Miller, 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.

Full text of DOI:10.1039/DT9830001071

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