Double =, and triple # bonds: C=O (carbonyl), C#N (nitrile)
But-2-ene C4H8 (Figure 1).
Code:
butene = Chem.MolFromSmiles("CC=CC")
butene
Figure 1: Structure of But-2-ene.
2. Hexene C6H12 (Figure 2).
Code:
hexene = Chem.MolFromSmiles("C=CCCCC")
hexene
Figure 2: Structure of Hexene.
3. But-2-yne C4H6 (Figure 3).
Code:
butyne = Chem.MolFromSmiles("CC#CC")
butyne
Figure 3: Structure of But-2-yne.
4. Hex-3-yne C6H10 (Figure 2).
Code:
hexyne = Chem.MolFromSmiles("CCC#CCC")
hexyne
Figure 4: Structure of Hex-3-yne.