New answers tagged stereochemistry
0
votes
Is this formula for number of optical isomers correct?
Try to use these formulas for finding number of stereoisomers for a given compound:
Geometrical Isomers:
If n is odd: $2^{n-1}+2^{\frac {n+1}{2}-1}$
If n is even: $2^{n-1}+2^{\frac {n}{2}-1}$
...
3
votes
Accepted
Stereochemical relationship of molecules including double bond configuration and absolute configuration
Diastereomers, by definition, are stereoisomers that are not enantiomers, so you're right they can't be both.
I think you might be confused because you are trying to apply a simplified heuristic (...
4
votes
Accepted
If the substituents are distinguishable, is it possible to prioritize them using the CIP rules?
Blue Various: Per your request, I offer the following examples. Consider the D-pentoses ribose 1, xylose 4 and arabinose 5. Each one has stereodescriptors in uppercase letters (R/S) at $\ce{C2, C3 and ...
6
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Does a chiral allene have stereogenic centres?
Chirality is a hypernym for the observation that an object can not be superimposed to its mirror image.
Most frequently, examples of chirality in organic chemistry are caused by the spatial ...
7
votes
Accepted
Does a chiral allene have stereogenic centres?
The definition of "stereogenic centre" is unhelpful and can be confusing
The large majority of chiral molecules are chiral because a carbon in them has 4 different things attached to it (...
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Related Tags
stereochemistry × 826organic-chemistry × 524
chirality × 134
isomers × 129
cis-trans-isomerism × 62
reaction-mechanism × 60
nomenclature × 60
optical-properties × 35
conformers × 35
coordination-compounds × 30
molecular-structure × 27
inorganic-chemistry × 22
cyclohexane × 22
biochemistry × 20
symmetry × 15
carbohydrates × 15
carbonyl-compounds × 14
nmr-spectroscopy × 14
stereoselectivity × 13
bond × 12
synthesis × 11
molecules × 11
terminology × 10
notation × 9
stability × 8