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Electrocatalysis by foreign metal monolayers: Oxidation of formic acid on platinum
(Elsevier, 1975)
It was demonstrated that some foreign metal monolayers formed by underpotential deposition have pronounced catalytic effects on the oxidation of formic acid on platinum. The explanation of these effects was sought within ...
Quercetagetin 6,7,3',4'-tetramethyl ether: a new flavonol from Artemisia annua
(Elsevier, 1975)
Plant: Artemisia annua L. Source: South of Belgrade. A CHCl, extract of the whole plant yielded after chromatography a new polar flavonol, yellow crystals, mp 171-172 degrees, M+ m/e 374, C19H18O8. characterized by UV/VIS, ...
An analysis of elementary processes of water desorption from zeolites of type aPart. I. Zeolites with monovalent counterions: undefined
(Elsevier, 1976)
Complex DSC curves of water desorption from LiA, NaA and KA zeolites were resolved into the most probable elementary curves. The activation energies and transition temperatures of corresponding elementary processes were ...
A novel procedure for the aromatization of ring a in 19-nortestosterone
(Elsevier, 1977)
A convenient, 40% overall yield synthesis of 2,3,17β-triacetoxy-1,3,5(10)-estratriene is described, which involves epoxidation of 19-nortestosterone and subsequent acetylation, lead tetra-acetate acetoxylation of the ...
Investigation of the anodic processes on platinum in perchlorate and chlorate solutions by linear sweep voltammetry using the rotating double-ring electrodes
(Elsevier, 1976)
There have been several attempts to elucidate events occurring on platinum immersed into pure perchloric acid solutions, when submitted to high anodic polarisation. The polarisation curve was shown to exhibit two levels, ...
An analysis of elementary processes of water desorption from zeolites of type a Part II. Zeolites with bivalent counterions
(Elsevier, 1976)
DSC and EGA were used to follow the process of water desorption from synthetic MgA, ZnA and CdA zeolites. Applying a semi-empirical algorithm the complex experimental curves were resolved into elementary ones. It turned ...
Multiphoton resonance absorption characteristics
(IOP Publishing, 1977)
It is shown that the Dyson equation gives finite values for multiphoton resonance absorption rates when an appropriate diagram summation technique is applied. A simple recurrence formula connects the n-photon absorption ...
On the kinetics and mechanism of the Cd(II)/Cd(Hg) system in acid media
(Elsevier, 1977)
The kinetics and mechanism have been investigated in the Cd(II)/Cd(Hg) system in 2 M NaClO4 + 1 M HClO4, at 25 ± 0.5°C. The galvanostatic single-pulse method has been used. The value of double-layer capacity, exchange ...
Inhibitory effects of manganeous, cadmium and zinc ions on hydrogen evolution reaction and corrosion of iron in sulphuric acid solutions
(Pergamon Press, 1978)
The presence of metal ions (Cd2+, Mn2+, Zn2+), more electronegative than the cathodic potential for the hydrogen evolution reaction on iron in a 0.25M H2SO4 solution, inhibits the hydrogen evolution reaction and corrosion ...
Control of intramolecular γ-alkylation vs. α-alkylation of an αβ-unsaturated ketone: An unusual solvent effect
(Royal Society of Chemistry, 1979)
Most base-solvent combinations convert (2) into (3); γ-alkylation to yield (5) is effected by sodium hydroxide in dimethyl sulphoxide-water mixtures in which the water content is critical.