✦ LIBER ✦

The kinetics of the anation reaction of aquopentaamminecobalt(III) by malonate in acidic aqueous solution

✍ Scribed by P. R. Joubert; R. Van Eldik

Publisher: John Wiley and Sons
Year: 1976
Tongue: English
Weight: 470 KB
Volume: 8
Category: Article
ISSN: 0538-8066
DOI: 10.1002/kin.550080308

No coin nor oath required. For personal study only.

✦ Synopsis

The Co(NH3) 50Hz3+ ion reacts with malonate to form Co(NH3) 50~CCH2C02H2+ or Co(NH3) 50ZCCHzCOz+, depending on the pH of the reaction solution. The kinetics of this anation reaction have been studied as a function of [H+] for the acidity range 1.5 5 pH 5 6.0 in the temperature range of 60 to 8OoC, the [total malonate] 5 0.5 M , and the ionic strength 1 .OM. The anation by malonic acid follows second-order kinetics, the rate constant being 8.0 X 10-5 A4-l.sec-l at 70°C, and the anations by bimalonate ( a l , k,) and malonate ion (Qz, kz) are consistent with an I d mechanism. Typical values at 70°C for the ion pair formation constants are Q1 = 1.3, QZ = 5.4M-'; and for the interchange rate constants kl = 5.3 X The activation parameters for the various rate constants are reported and the results discussed with reference to previously reported data for similar systems. kz = 7.3 X 10-4 sec-'.

📜 SIMILAR VOLUMES

Kinetics of the disproportionation react

Kinetics of the disproportionation reaction of HIO2 in acidic aqueous solutions

✍ Smiljana Marković; Biljana Petrović 📂 Article 📅 2010 🏛 John Wiley and Sons 🌐 English ⚖ 91 KB 👁 1 views

We review and discuss kinetic studies of the disproportionation reaction of iodous acid (HIO 2 ) in the presence of excess of Hg 2+ -ions. The reactions are followed at different temperatures in water solution with strongly defined acidity. The rate constants of disproportionation are determined bet

Kinetics and mechanisms of the reactions

Kinetics and mechanisms of the reactions of aluminium(III) with β-diketones in aqueous solution

✍ Claire T. Tomany; Michael J. Hynes; Thomas Schmid 📂 Article 📅 1998 🏛 John Wiley and Sons 🌐 English ⚖ 162 KB 👁 1 views

The kinetics and mechanisms of the reactions of aluminium(III) with pentane-2,4dione (Hpd), 1,1,1-trifluoro pentane-2,4-dione (Htfpd) and heptane-3,5-dione (Hhptd) have been investigated in aqueous solution at and ionic strength sodium per-Ϫ3 25ЊC 0.5 mol dm chlorate. The kinetic data are consistent

Kinetic Study of the Aggregation of Meth

Kinetic Study of the Aggregation of Methyl Orange in Aqueous Acidic Solution

✍ Michel De Vijlder 📂 Article 📅 2010 🏛 Wiley (John Wiley & Sons) ⚖ 75 KB 👁 2 views

Kinetic and mechanistic studies on the c

Kinetic and mechanistic studies on the complexation and anation of dioxotetracyanomolybdate (IV) with 2,2′-bipyridyl in aqueous solution

✍ S. I. Ali; Zakir Murtaza; Zaheer Khan 📂 Article 📅 1996 🏛 John Wiley and Sons 🌐 English ⚖ 392 KB 👁 2 views

Dioxotetracyanomolybdate( IV) has been found to form a 1 2 complex with 2,2'-bipyridyl The kinetics of the reaction has been studied over the pH range 5 3-8.7 by visible spectrophotometry under pseudo conditions The effect of the 2,2'-bipyridyl and dioxotetracyanomolyb-date1 IV). temperature, ionic

Kinetics and mechanism of the reaction o

Kinetics and mechanism of the reaction of cysteine and hydrogen peroxide in aqueous solution

✍ Dayong Luo; Scott W. Smith; Bradley D. Anderson 📂 Article 📅 2005 🏛 John Wiley and Sons 🌐 English ⚖ 270 KB 👁 2 views

The oxidation of thiol-containing small molecules, peptides, and proteins in the presence of peroxides is of increasing biological and pharmaceutical interest. Although such reactions have been widely studied there does not appear to be a consensus in the literature as to the reaction products forme

On the kinetics and mechanism of the rea

On the kinetics and mechanism of the reaction of cysteine and hydrogen peroxide in aqueous solution

✍ Michael T. Ashby; Péter Nagy 📂 Article 📅 2006 🏛 John Wiley and Sons 🌐 English ⚖ 76 KB 👁 2 views