THE METAL-CATALYZED AUTOXIDATION OF TETRALIN: I. INTRODUCTION. THE COBALT-CATALYZED AUTOXIDATION IN ACETIC ACID

1963 ◽  
Vol 41 (8) ◽  
pp. 2020-2033 ◽  
Author(s):  
Y. Kamiya ◽  
S. Beaton ◽  
A. Lafortune ◽  
K. U. Ingold
Keyword(s):  
Acetic Acid ◽  
Catalytic Effect ◽  
Catalyst Concentration ◽  
Cobalt Acetate ◽  
Metal Salts ◽  
Organic Substances ◽  
Transition Metal Salts ◽  
Theoretical Predictions ◽  
Metal Catalyzed ◽  
State Concentration

The catalytic effect of transition metal salts on the rate of autoxidation of organic substances reaches a constant value at some critical catalyst concentration. Three possible explanations of this phenomena are critically examined. The cobalt acetate catalyzed autoxidation of tetralin in acetic acid has been reinvestigated and the limiting rate of oxidation at high cobalt concentrations has been shown to be due to the production of a steady-state concentration of hydroperoxide. The present results are in fair agreement with the experimental work of Woodward and Mesrobian (J. Am. Chem. Soc. 75, 6189 (1953)) and are in excellent agreement with theoretical predictions.

CATALYSIS OF THE CIS-TRANS ISOMERIZATION OF AZOBENZENE BY ACIDS AND CUPRIC SALTS

1959 ◽  
Vol 37 (11) ◽  
pp. 1903-1910 ◽  
Author(s):  
Stefania Ciccone ◽  
J. Halpern
Keyword(s):  
Acetic Acid ◽  
Hydrochloric Acid ◽  
Catalytic Effect ◽  
Catalytic Mechanism ◽  
Aqueous Ethanol ◽  
Metal Salts ◽  
Trans Isomerization ◽  
Conjugate Acid ◽  
Azo Group ◽  
Catalytic Effects

The catalytic effects of various acids and metal salts on the cis-trans isomerization of azobenzene in aqueous ethanol were examined kinetically. The effect of perchloric acid is apparently due to H+ ions and is interpreted in terms of a catalytic mechanism involving the conjugate acid of azobenzene. The much greater catalytic effect found for hydrochloric acid is attributed to an additional path involving catalysis by the undissociated acid. Acetic acid was found to be inactive. Of the metal salts examined only those of Cu++ showed pronounced activity which was attributed to co-ordination with the azo group. Kinetic evidence was obtained for a catalytic path involving Cu++ and H+ simultaneously.

scholarly journals Synthesis of New Derivatives of BEDT-TTF: Installation of Alkyl, Ethynyl, and Metal-Binding Side Chains and Formation of Tris(BEDT-TTF) Systems

2021 ◽  
Vol 7 (8) ◽  
pp. 110
Author(s):  
Songjie Yang ◽  
Matteo Zecchini ◽  
Andrew Brooks ◽  
Sara Krivickas ◽  
Desiree Dalligos ◽  
...  
Keyword(s):  
Metal Binding ◽  
Tricarboxylic Acid ◽  
Metal Salts ◽  
Side Chain ◽  
Side Chains ◽  
Ethynyl Group ◽  
X Ray ◽  
Transition Metal Salts ◽  
Alkyl Side Chains ◽  
Derivatives Of

The syntheses of new BEDT-TTF derivatives are described. These comprise BEDT-TTF with one ethynyl group (HC≡C-), with two (n-heptyl) or four (n-butyl) alkyl side chains, with two trans acetal (-CH(OMe)2) groups, with two trans aminomethyl (-CH2NH2) groups, and with an iminodiacetate (-CH2N(CH2CO2−)2 side chain. Three transition metal salts have been prepared from the latter donor, and their magnetic properties are reported. Three tris-donor systems are reported bearing three BEDT-TTF derivatives with ester links to a core derived from benzene-1,3,5-tricarboxylic acid. The stereochemistry and molecular structure of the donors are discussed. X-ray crystal structures of two BEDT-TTF donors are reported: one with two CH(OMe)2 groups and with one a -CH2N(CH2CO2Me)2 side chain.

Doping of Polyaniline by Transition-Metal Salts

2004 ◽  
Vol 37 (9) ◽  
pp. 3388-3395 ◽  
Author(s):  
O. P. Dimitriev
Keyword(s):  
Transition Metal ◽  
Metal Salts ◽  
Transition Metal Salts
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