η-Ricci Soliton on 3-Dimensional f-Kenmotsu Manifolds

The object of the present paper is to carry out η-Ricci soliton on 3-dimensional regularf-Kenmotsu manifold and we turn up some geometrical results. Furthermore we bring out the curvature conditions for which η-Ricci soliton on such manifolds are shrinking, steady or expanding. We wind up by considering examples of existence of shrinking and expanding η-Ricci soliton on 3-dimensional regularf-Kenmotsu manifolds

Quinolinium Dichromate Oxidation of Aliphatic Aldehydes: A Kinetic Study

Kinetic data on the rates of quinolinium dichromate oxidation of a series of aliphatic aldehydes have been determined and discussed with reference to aldehyde hydration equilibria. Kinetic results support a pathway proceeding via a rate-determining oxidative decomposition of a chromate ester of an aldehyde hydrate. A cyclic transition state is suggested; being a Hückel-type system (4n + 2), this would be an allowed process. The deuterium isotope effect for the oxidation of acetaldehyde (kH / kD = 6.4) indicated a carbon-hydrogen cleavage rather than a carbon-carbon cleavage

Kinetics of Oxidation of Heterocyclic Compounds by Quinolinium Dichromate

Quinolinium dichromate in sulfuric acid oxidized heterocyclic aldehydes (to the corresponding acids) and heterocyclic carboxylic acids (to the corresponding hydroxy-substituted acids) in acetic acidwater medium (vol. ratio, v(water)/v(acetic acid) = 50:50). The kinetic results supported a mechanistic pathway proceeding via a rate-determining decomposition of the chromate ester

Kinetics of Oxidation of Heterocyclic Compounds by Quinolinium Dichromate

Quinolinium dichromate in sulfuric acid oxidized heterocyclic aldehydes (to the corresponding acids) and heterocyclic carboxylic acids (to the corresponding hydroxy-substituted acids) in acetic acidwater medium (vol. ratio, v(water)/v(acetic acid) = 50:50). The kinetic results supported a mechanistic pathway proceeding via a rate-determining decomposition of the chromate ester