✦ LIBER ✦

Kinetics and mechanism of Rh(III) catalyzed oxidation of styrene, stilbene and phenylacetylene by acid periodate

✍ Scribed by P. S. Radhakrishnamurti; S. A. Misra

Publisher: John Wiley and Sons
Year: 1982
Tongue: English
Weight: 361 KB
Volume: 14
Category: Article
ISSN: 0538-8066
DOI: 10.1002/kin.550140605

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

The kinetics of Rh(III) catalyzed oxidative cleavage of styrene, stilbene, and phenylacetylene by periodate have been investigated in the presence of HClO~4~ in aqueous acetic acid medium. The kinetic orders are completely dependent on the nature of unsaturation. In the cases of styrene and stilbene the reactions are first order in the oxidant and Rh(III), zero order with respect to the substrate, and independent of [H^+^], whereas in the case of phenyl acetylene the reaction is zero order with respect to the oxidant and first order with respect to the substrate and Rh(III). The reaction is independent of [H^+^] in the range of 0.01−0.05__M__ studied. A mechanism involving higher Rh(V) species has been postulated in the case of styrene as well as stilbene, and metal ion catalyzed hydration has been postulated in case of phenylacetylene. The influence of the solvent has been investigated, and a comparative analysis of the kinetic orders of styrene and stilbene is made with those of phenylacetylene.

📜 SIMILAR VOLUMES

Kinetics and mechanism of oxidation of n

Kinetics and mechanism of oxidation of nitrilotriacetic acid by diperiodatoargentate(III)

✍ Anil Kumar; Paresh Kumar 📂 Article 📅 1999 🏛 John Wiley and Sons 🌐 English ⚖ 80 KB 👁 2 views

Diperiodatoargentate(III) oxidizes nitrilotriacetic acid in a mildly basic medium to produce formaldehyde and ammonia. This reaction follows a complex kinetic behaviour. The axial binding of NTA to silver(III) complex takes place on the millisecond time-scale with a second-order rate constant of (4.

Kinetics and mechanism of the oxidation

Kinetics and mechanism of the oxidation of halotoluenes by acidic hexacyanoferrate(III)

✍ A. K. Bhattacharjee; M. K. Mahanti 📂 Article 📅 1982 🏛 John Wiley and Sons 🌐 English ⚖ 444 KB 👁 1 views

## Abstract The oxidation of halotoluenes by hexacyanoferrate(III) in aqueous acetic acid containing perchloric acid (0.5__M__) at 50°C gave the corresponding aldehyde as the major product, and a small amount of polymeric material. The order with respect to each of the reactants—substrate, oxidant,

Study on kinetics and mechanism of coppe

Study on kinetics and mechanism of copper-catalyzed oxidation of hydrazine by iron (III) in acid solution

✍ Cheng De-Ping; Xia Shi-Jun 📂 Article 📅 2010 🏛 John Wiley and Sons 🌐 English ⚖ 338 KB 👁 2 views

The copper-catalyzed oxidation of hydrazine by iron(II1) in acid solution follows the rate law -d[Fe(III)]/dt = ~K~[CU(II)]~/(K~ + [H+]), where Kh is the hydrolysis constant of Cu2+, k was found t o be 8.8f0.8, 13.2f1.4 and 17.5f1.3 min-' at 35, 40, and 45OC respectively and p= 0.2 mol/L. The compos

Kinetics and mechanism of the oxidation

Kinetics and mechanism of the oxidation of glycolaldehyde by tetrachloroaurate(III)

✍ Pratik K. Sen; A. B. Bilkis; Kalyan K. Sen Gupta 📂 Article 📅 1998 🏛 John Wiley and Sons 🌐 English ⚖ 157 KB 👁 2 views

The kinetics of the reaction between glycolaldehyde (GA) and tetrachloroaurate(III) in acetic acid-sodium acetate buffer has been studied. The reaction is first-order with respect to as well as [GA]. Both and ions retard the rate of reaction. III ϩ Ϫ Ϫ [Au ] H Cl AuCl , 4 and are the reactive specie

Kinetics and mechanism of ruthenium (III

Kinetics and mechanism of ruthenium (III) catalyzed oxidation of ethanol by cerium (IV) in aqueous sulfuric acid media

✍ Asim K. Das; Mahua Das 📂 Article 📅 1995 🏛 John Wiley and Sons 🌐 English ⚖ 478 KB 👁 1 views

The kinetics of oxidation of ethanol by cerium(1V) in presence of ruthenium(II1) (in the order of mol dm-3) in aqueous sulfuric acid media have been followed at different temperatures (25-40°C). The rate of disappearance of cerium(1V) in the title reaction increases sharply with increasing [CzH50H]

Kinetics and mechanism of autocatalytic

Kinetics and mechanism of autocatalytic oxidation of formaldehyde by nitric acid

✍ Monika Horváth; István Lengyel; György Bazsa 📂 Article 📅 1988 🏛 John Wiley and Sons 🌐 English ⚖ 449 KB

The kinetics of the reaction between nitric acid and formaldehyde have been studied by spectrophotometry. The reaction is autocatalytic. A two-step mechanism is proposed, which accounts for this behavior and describes the effect of reactant concentrations on the characteristics of the kinetic curves