Concept explainers
Interpretation:
Whether the two structures in each of the given pairs represent constitutional isomers, different conformations of the same compound, or stereoisomers that cannot be interconverted by rotation about single bonds is to be determined.
Concept introduction:
Different compounds having same molecular formula are called isomers. They can either differ in connectivity or differ in the arrangement of atoms in space.
Different spatial arrangements of a molecule are made by rotation about single bonds. These structures are called as conformations, that is., structures can be made identical by rotation around one or more single bonds.
Stereoisomers have the same constitution but they have different special arrangement of atoms.
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ORGANIC CHEMISTRY-PACKAGE >CUSTOM<
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- There are 17 possible alkene isomers with the formula C6H12. Draw structures of the five isomers in which the longest chain has six carbon atoms, and give the name of each. Are any of these isomers chiral? (There are also eight isomers in which the longest chain has five carbon atoms, and four isomers in which the longest chain has four carbon atoms. How many can you find?)arrow_forwardFollowing are structural formulas for 1,4-dioxane and piperidine. 1,4-Dioxane is a widely used solvent for organic compounds. Piperidine is found in small amounts in black pepper (Piper nigrum). (a) Complete the Lewis structure of each compound by showing all unshared electron pairs. (b) Predict bond angles about each carbon, oxygen, and nitrogen atom. (c) Describe the most stable conformation of each ring and compare these conformations with the chair conformation of cyclohexane.arrow_forwardWhich of the following pairs of cycloalkanes represent structural isomers? a. b. c. d.arrow_forward
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