H H H Definitions Conjugated double bonds are separated by one single bond. EXample: 1, 3-pentadiene Isolated double bonds are separated by two or more single bonds. 1, 4-pentadiene Cumulated double bonds are on adjacent carbons. EXample: 1, 2-pentadiene > Chaper 15Chaper 15 2 Definitions • Conjugated double bonds are separated by one single bond. Example: 1,3-pentadiene. • Isolated double bonds are separated by two or more single bonds. 1,4-pentadiene. • Cumulated double bonds are on adjacent carbons. Example: 1,2-pentadiene. =>