0
What is difference between a racemic mixture and a meso compound?
Wiki User
∙ 11y ago
Both are optically inactive, but for different reasons. A racemic mixture contains chiral molecules that, individually, are optically active. But the mixture contains optically active enantiomers, which essentially cancel out each other's optical activity (one enantiomer rotates light one way, the other rotates it back).
A meso compound, however, is optically inactive on its own. It can have chiral centers within its structure, but due to symmetry it will still be optically inactive.
Wiki User
∙ 11y ago
Add your answer:
Earn +20 pts
Is there a structure for racemic mixture of tartaric acid?
its there. for the answer consult akash at akash.jonas@yahoo.com
When achiral starting materials yield a product that contains a chiral center the product will be?
racemic mixture
What is a recemate?
In chemistry, a racemic mixture is one that has equal amounts of left- and right-handed enantiomers of a chiral molecule. The first known racemic mixture, or racemate, was 'racemic acid', which Pasteur found to be a mixture of the two enantiomeric isomers of tartaric acid. A racemate is optically inactive: because the two isomers rotate plane-polarized light in opposite directions they cancel out, therefore a racemic mixture does not rotate plane-polarized light. In contrast to the two separate enantiomers, which generally have identical physical properties, a racemate often has different properties compared to either one of the pure enantiomers. Different melting points and solubilities are very common, but different boiling points are also possible.
What is asymmetric synthesis?
When a compound containing an asymmetric carbon atom is synthesised by ordinary laboratory methods from a symmetric compound ,the product is a racemic mixture.if ,however ,such a synthesis is carried under the asymmetric influence of a suitable optically active reagent ,only one of the optically active isomers ( or-)is formed.This process in which an asymmetric compound is synthesised from a symmetric compound to yield the ( ) isomer or (-)isomer directly is termed asymmetric synthesis.
What does D-Glucose and L- Glucose mean?
in D-GLUCOSE 'D' does not mean dextrose (for dextro we use small 'd') it is a series of monosaccharides in which a 'OH' group attached to C-5 is shown at right side of vertical carbon chain.
What is the difference between racemic mixture and mesocompounds?
1:1 molar solution of two enantiomers is recemic mixture and it may be resolved into two parts by chemical means while mesoform is a pure substance and can not be resolved, but both these are optically inactive.
What are racemic mixtures?
Mixtures containing equal amounts of levo- and dextro- forms of a compound and thus do not rotate the plane of polarized light passing through the mixture.
What is A mixture of equal amounts of two enantiomers?
its called a racemic mixture and is optically inactive
Is there a structure for racemic mixture of tartaric acid?
its there. for the answer consult akash at akash.jonas@yahoo.com
How can you separate racemic mixture?
Lets have fun .never ask the hell like question.
When achiral starting materials yield a product that contains a chiral center the product will be?
racemic mixture
What is raceme?
racemization is defined as if we add cis and anti form it give rise to racemic mixture
What is benzoyl DL-arginine p-nitroaniline hydrochloride?
It is substrate used to measure proteas activity. Trypsin is one of the enzymes it is used for. The compound you mentioned is a racemic mixture and I believe it is only the L form that is an active substrate. Thomas Henriksson, Ph.D.
What is a recemate?
In chemistry, a racemic mixture is one that has equal amounts of left- and right-handed enantiomers of a chiral molecule. The first known racemic mixture, or racemate, was 'racemic acid', which Pasteur found to be a mixture of the two enantiomeric isomers of tartaric acid. A racemate is optically inactive: because the two isomers rotate plane-polarized light in opposite directions they cancel out, therefore a racemic mixture does not rotate plane-polarized light. In contrast to the two separate enantiomers, which generally have identical physical properties, a racemate often has different properties compared to either one of the pure enantiomers. Different melting points and solubilities are very common, but different boiling points are also possible.
Different between atropine and hyoscyamine?
There is not much difference between them. Atropine and Hysocyamine are isomers of each other. Atropine is (+/-) Hyoscyamine, the tropic acid ester of tropine. The naturally occurring alkaloid is (-) Hyocyamine. Thus it can be said that Hyoscyamine is a racemic form of Atropine. In other words, Atropine is a racemic variety of tropine tropate, hysocyamine being the levorotatory enantiomorph of tropine tropate.
What is the difference between d-amphetamine and ic-amphetamine?
ic amphetamine salts are generic for Adderall IR, which contains 4 different types of amphetamine salts, racemic amphetamine aspartate monohydrate, racemic amphetamine sulfate, dextroamphetamine saccharide, and dextroamphetamine sulfate. All of these are amphetamine salts. ic amphetamine salts contain dextroamphetamine as well racemic amphetamine mixtures, which contain equal parts levo- and dextro- amphetamine. So the difference is that ic amphetamine salts (Adderall IR) contains ~75% dextoamphetamine and ~25% levoamphetamine.
Why do cells produce only one form of a chiral compound rather than a racemic mixture?
A racemic mixture is one of two optical isomers. By way of analogy, your right hand is the mirror image of the left, there are chemical compounds that this also occurs in. In the body most chemical reactions are mediated by proteins called enzymes. Enzymes are not simple compounds and are very selective in how they bind reactants. That being the case, they only work with one optical isomer and the end products are always of one optical isomer. see http://www.answers.com/optical+isomer
