isomers


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isomers

Different (usually organic) compounds having the same molecular formula and relative molecular mass but some different properties, as they have different three-dimensional structures.
References in periodicals archive ?
Fatchiyah, "Patchouli alcohol isomers pogostemon herba predicted virtually," Journal of Biological Researches, vol.
Therefore, one can conclude that dye molecules in our case undergo analogous transformations between two isomers under the light influence.
The team tested types of polylactic acid (PLA) with different proportions of isomers L and D/L, a biodegradable material allowing neural cell adhesion and growth, as materials for nerve regeneration.
Open merocyanine isomers are usually characterized by low thermodynamic stability and consecutive low lifetimes due to possibility to undergo the ring closure back-reaction without additional photo activation [2, 8].
Easy separation of the isomers was achieved by chromatography over silica gel (Scheme 1).
Indeed the first-order biomass-normalized rate coefficient ([k.sub.b]) of DMNs varies within one order of magnitude, the [beta],[beta]-disubstituted isomers showing the maximum [k.sub.b] values along the series [12].
The achievement was made by studying the voltammetry of dihydroxybenzene isomers on the surface of glass carbon electrode modified with carbon nanoparticle - chitosan composite film with high surface area.
Isomers of these compounds are distinguished by the number and arrangement of methyl substituents attached to the chromanol ring.
It is important to understand that vitamin E exists naturally as eight different mirror isomers known as tocotrienols and tocopherols.
H-point standard addition method (HPSAM) has been applied to the simultaneous determination of o-aminophenol (oA) and p-aminophenol (pA) isomers in binary mixtures.
The general concept of a gamma-ray laser based on the de-excitation of nuclear isomers has been around for some 50 years and no practical demonstration has proved possible.
In color photos of museum pieces throughout the Southwest, isomeric design strategies such as liminal-space isomers, tessellated isomers, figure-ground spatial reversals, and optical illusions are identified.