Kinetics and mechanism of the reaction of octacarbonyl dicobalt with ethyl diazoacetate

Robert Tuba, Eszter Fördös, F. Ungváry

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Kinetics of the reaction of octacarbonyl dicobalt with ethyl diazoacetate leading to [μ2-{ethoxycarbonyl(methylene)}-μ2- (carbonyl)-bis(tricarbonyl-cobalt)] (Co-Co) (1), dinitrogen, and carbon monoxide were investigated at 10°C in heptane solution. The initial rate of the reaction was measured by following both the gas evolution and the decrease of the octacarbonyl dicobalt concentration. The rate is first order with respect to octacarbonyl dicobalt and a complex order with respect to ethyl diazoacetate and carbon monoxide depending on the ratio of their concentrations. This is in accord with the formation of a heptacarbonyl dicobalt reactive intermediate (k1 (10°C) = (1.22 ± 0.06) × 10-3 s -1) for which carbon monoxide and ethyl diazoacetate compete (k -1/k2 (10°C) = 1.34 ± 0.07).

Original languageEnglish
Pages (from-to)4081-4085
Number of pages5
JournalInorganica Chimica Acta
Volume358
Issue number13
DOIs
Publication statusPublished - Sep 1 2005

Fingerprint

Carbon Monoxide
Carbon monoxide
carbon monoxide
Kinetics
kinetics
gas evolution
Heptanes
Heptane
heptanes
Cobalt
methylene
cobalt
Gases
diazoacetic ester
dicobalt octacarbonyl

Keywords

  • Ethyl diazoacetate
  • Kinetics
  • Octacarbonyl dicobalt

ASJC Scopus subject areas

  • Biochemistry
  • Inorganic Chemistry
  • Physical and Theoretical Chemistry
  • Materials Chemistry

Cite this

Kinetics and mechanism of the reaction of octacarbonyl dicobalt with ethyl diazoacetate. / Tuba, Robert; Fördös, Eszter; Ungváry, F.

In: Inorganica Chimica Acta, Vol. 358, No. 13, 01.09.2005, p. 4081-4085.

Research output: Contribution to journalArticle

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