Concept explainers
(a)
Interpretation:
The specific relationship between the given pair of molecules is to be identified.
Concept introduction:
If two cyclic molecules have different molecular formula, they are unrelated molecules. If they have the same molecular formula, same connectivity, and can be interconverted by a chair flip, they are conformers. Configurational isomers are the isomers having the same connectivity of atoms but differ in spatial arrangement at chiral centers. If configurational isomers have different configuration at each chiral center, they are enantiomers. If they differ in configuration at some but not all chiral centers, they are diastereomers.
(b)
Interpretation:
The specific relationship between the given pair of molecules is to be identified.
Concept introduction:
If two cyclic molecules have different molecular formula, they are unrelated molecules. If they have the same molecular formula, same connectivity, and can be interconverted by a chair flip, they are conformers. Configurational isomers are the isomers having the same connectivity of atoms but differ in spatial arrangement at chiral centers. If configurational isomers have different configuration at each chiral center, they are enantiomers. If they differ in configuration at some but not all chiral centers, they are diastereomers.
(c)
Interpretation:
The specific relationship between the given pair of molecules is to be identified.
Concept introduction:
If two cyclic molecules have different molecular formula, they are unrelated molecules. If they have the same molecular formula, same connectivity, and can be interconverted by a chair flip, they are conformers. Configurational isomers are the isomers having the same connectivity of atoms but differ in spatial arrangement at chiral centers. If configurational isomers have different configuration at each chiral center, they are enantiomers. If they differ in configuration at some but not all chiral centers, they are diastereomers.
(d)
Interpretation:
The specific relationship between the given pair of molecules is to be identified.
Concept introduction:
If two cyclic molecules have different molecular formula, they are unrelated molecules. If they have the same molecular formula, same connectivity, and can be interconverted by a chair flip, they are conformers. Configurational isomers are the isomers having the same connectivity of atoms but differ in spatial arrangement at chiral centers. If configurational isomers have different configuration at each chiral center, they are enantiomers. If they differ in configuration at some but not all chiral centers, they are diastereomers.
(e)
Interpretation:
The specific relationship between the given pair of molecules is to be identified.
Concept introduction:
If two cyclic molecules have different molecular formula, they are unrelated molecules. If they have the same molecular formula, same connectivity, and can be interconverted by a chair flip, they are conformers. Configurational isomers are the isomers having the same connectivity of atoms but differ in spatial arrangement at chiral centers. If configurational isomers have different configuration at each chiral center, they are enantiomers. If they differ in configuration at some but not all chiral centers, they are diastereomers.
(f)
Interpretation:
The specific relationship between the given pair of molecules is to be identified.
Concept introduction:
If two cyclic molecules have different molecular formula, they are unrelated molecules. If they have the same molecular formula, same connectivity, and can be interconverted by a chair flip, they are conformers. Configurational isomers are the isomers having the same connectivity of atoms but differ in spatial arrangement at chiral centers. If configurational isomers have different configuration at each chiral center, they are enantiomers. If they differ in configuration at some but not all chiral centers, they are diastereomers.
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Organic Chemistry: Principles and Mechanisms (Second Edition)
- Identity if they are , constitutional isomers, stereoisomers, enantiomers, diastereomers, or conformers.arrow_forwardWhat are all 4 the isomer conformations chairs?arrow_forwardDetermine the # of chiral centers. Determine the most stable chair conformation then indicate which are equatorial and which are axial.arrow_forward
- For each of the following pairs of compounds, determine which compound is more stable (may be more helpful to draw out the chair conformations)arrow_forwardDraw both chair conformers of ethylcyclohexane. Identify which is lower in energy.arrow_forwardRank these conformational isomers in order of decreasing potential energy. Rank from hightest to lowest potential energy. To rank items as equivalent, overlap them.arrow_forward
- Label the following pairs as A) distereoisomers, B) enantiomers, C) conformers, or D) the same. b1 c1 d1 e1 a2 b2 c2 The structures above are labeled a1, a2, b1, b2 ...etc. Using these labels, indicate which compounds above would have an optical rotation ofarrow_forwardwhich of the following conformation is highest in energyarrow_forwardDraw the first compund in Fischer structure and 3D perspective structure( as if it was a molecular model) Draw the second compund in Chair conformation structure and Inverted chair conformation structurearrow_forward
- For the following two pairs of molecules, (1) Draw out the chair conformation for each molecule, flip the ring if it is possible. (2) Compare both molecules to circle out which one is more stable. (3) Identify their relationship as: constitutional isomer, conformational isomer, stereoisomer or identical. (4) Find all the chiral center on each molecule and label them. VS. ****arrow_forwardWhat is the relationship for the following pairs of compounds. The options include constitutional isomers, not isomers, enantiomers, conformers, identical, resonance structures.arrow_forwardIndicate whether the pair of structures shown represent stereoisomers, constitutional isomers, different conformations of the same compound, or the same conformation of a compound viewed from a different perspective.arrow_forward
- Organic Chemistry: A Guided InquiryChemistryISBN:9780618974122Author:Andrei StraumanisPublisher:Cengage Learning