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constitutional isomerism
Also known as: structural isomerism
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alkanes
- In hydrocarbon: Alkanes
…and are referred to as constitutional isomers. (An older name is structural isomers.) The compounds n-butane and isobutane are constitutional isomers and are the only ones possible for the formula C4H10. Because isomers are different compounds, they can have different physical and chemical properties. For example, n-butane has a higher…
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isomerism
- In isomerism
Constitutional isomers are molecules of different connectivity—analogous to simple bracelets in which the order of red and green beads is different. The second type is stereoisomers. In stereoisomers the connectivity is the same, but the parts are oriented differently in space.
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