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|Title:||Oxidative homolysis of organochromium(III) macrocyclic complexes||Authors:||Shi, S.||Issue Date:||Jun-1994||Citation:||Shi, S. (1994-06). Oxidative homolysis of organochromium(III) macrocyclic complexes. Transition Metal Chemistry 19 (3) : 299-301. ScholarBank@NUS Repository. https://doi.org/10.1007/BF00139097||Abstract:||Organochromium complexes, [CrRL(H2O)]2+] (L = 1,4,8,12-tetraazacyclopentadecane; R = 1°- or 2°-alkyl, or para-substituted benzyl), are oxidized to [CrRL(H2O)]3+, which rapidly decomposes (k3 > 102 s-1) by homolysis of the Cr-C bond. Rate constants of the oxidation of these complexes by [IrCl6]2- range from 2.20 × 10-1 (R = Me) to 4.60 × 105 (R = 4-MeC6H4CH2)dm3 mol-1 s-1. A very negative reaction constant (-4.3) is found for the oxidation of para-substituted benzlchromium(III) complexes which, in conjunction with the results of product analysis, indicates a [CrIII/R.] type transition state. © 1994 Chapman & Hall.||Source Title:||Transition Metal Chemistry||URI:||http://scholarbank.nus.edu.sg/handle/10635/91618||ISSN:||03404285||DOI:||10.1007/BF00139097|
|Appears in Collections:||Staff Publications|
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