| Name | Formula | Dipole moment (debye) |
|---|
| propyne | C3H4 | 0.75 |
| pyrazine | C4H4N2 | 0.00 |
| pyrazole | C3H4N2 | 2.20 |
| pyrazolo[1,5-a]pyridine | C7H6N2 | 2.18 |
| pyridazine | C4H4N2 | 4.14 |
| pyridine | C5H5N | 2.37 |
| pyridine-2,4-dicarboxylic acid | C7H5NO4 | 4.90 |
| pyridine-2-aldoxime | C6H6N2O | 2.47 |
| pyridine-2-carboxylic acid | C6H5NO2 | 4.42 |
| pyridine-3-aldoxime | C6H6N2O | 2.37 |
| pyridine-3-carboxamide | C6H6N2O | 4.20 |
| pyridine-4-aldoxime | C6H6N2O | 2.46 |
| pyridine-4-carboxamide | C6H6N2O | 3.91 |
| pyrido[3,2-g]quinoline | C12H8N2 | 4.02 |
| pyrimidine | C4H4N2 | 2.33 |
| pyrrole | C4H5N | 1.71 |
| pyrrolidine | C4H9N | 1.57 |
| pyrrolidine-1-carbonitrile | C5H8N2 | 4.85 |
| quinhydrone | C12H10O4 | 2.00 |
| quinoline | C9H7N | 2.25 |
| rac-1,2-bis-(p-chlorophenyl)-1,2-diphenylethane | C26H20Cl2 | 3.07 |
| rac-1,2-dichloro-1,2-diphenylethane | C14H12Cl2 | 2.75 |
| rac-3,4-dichloro-2,2,5,5-tetramethylhexane | C10H20Cl2 | 1.90 |
| rubidium bromide | BrRb | 10.90 |
| rubidium chloride | ClRb | 10.51 |