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Referred to as asymmetric depletion, a negative non-linear effect is present when the ee product is lower than predicted by an ideal linear situation. [3] In contrast to a (+)-NLE, a (−)-NLE results in a faster overall reaction rate and a decrease in enantioselectivity.
Fick's first law relates the diffusive flux to the gradient of the concentration. It postulates that the flux goes from regions of high concentration to regions of low concentration, with a magnitude that is proportional to the concentration gradient (spatial derivative), or in simplistic terms the concept that a solute will move from a region of high concentration to a region of low ...
In chemistry, primarily organic and computational chemistry, a stereoelectronic effect [1] is an effect on molecular geometry, reactivity, or physical properties due to spatial relationships in the molecules' electronic structure, in particular the interaction between atomic and/or molecular orbitals. [2]
This was critiqued by K. Aleklett and M. Höök, but their critique has itself been accused of bias towards non-representative depletion rates, with the result that their figures are ill-founded. [62] Subsequent research clarified more on depletion rates and different ways to define them, but still showed that it rests on solid scientific ...
As recombination proceeds and more ions are created, an increasing electric field develops through the depletion zone that acts to slow and then finally stop recombination. At this point, there is a "built-in" potential across the depletion zone. A p–n junction diode in low forward bias mode. The depletion width decreases as voltage increases.
Enantioselective synthesis, also called asymmetric synthesis, [1] is a form of chemical synthesis. It is defined by IUPAC as "a chemical reaction (or reaction sequence) in which one or more new elements of chirality are formed in a substrate molecule and which produces the stereoisomeric ( enantiomeric or diastereomeric ) products in unequal ...
As we head further into a new year, gold is experiencing renewed interest and a strong price, with its performance being driven, in part, by investors wary of persistent inflation. In December ...
A depletion force is an effective attractive force that arises between large colloidal particles that are suspended in a dilute solution of depletants, ...