| Name | Formula | Dipole moment (debye) |
|---|---|---|
| aluminium tribromide | AlBr3 | 0.55 |
| aluminium tris(ethyl acetoacetate) | C18H27AlO9 | 1.85 |
| aluminum 2,4-pentanedionate | C15H21AlO6 | 0.00 |
| aminoacetonitrile | C2H4N2 | 2.64 |
| aminodiborane | H7B2N | 2.67 |
| aminodimethylborane | C2H8BN | 1.47 |
| ammonia | H3N | 1.47 |
| aniline | C6H7N | 1.51 |
| anthracene | C14H10 | 0.00 |
| anthracene-1-carbonitrile | C15H9N | 4.14 |
| anthracene-9-carbonitrile | C15H9N | 4.13 |
| anthrone | C14H10O | 3.65 |
| antimony tribromide | Br3Sb | 2.47 |
| antimony trichloride | Cl3Sb | 3.60 |
| antimony triiodide | I3Sb | 0.40 |
| antipyrine | C11H12N2O | 5.47 |
| arachno-tetraborane(10) | H10B4 | 0.49 |
| argon | Ar | 0.00 |
| arsenic tribromide | AsBr3 | 1.66 |
| arsenic trichloride | AsCl3 | 1.59 |
| arsenic trifluoride | AsF3 | 2.59 |
| arsenic triiodide | AsI3 | 0.96 |
| arsenic trioxide | As2O3 | 0.14 |
| arsenobenzene | C12H10As2 | 0.00 |
| arsine | H3As | 0.20 |