| # | Species | Formula |
| 3530 | Ni(CO)4 | C4O4Ni | |
| 3531 | Ni(CO)4 (Geo) | C4O4Ni | |
| 3532 | Ni(CO)3NO | C3NO4Ni | |
| 3533 | Ni(CO)3NO (Geo) | C3NO4Ni | |
| 3534 | Ni(II)C4N (VAXSUI) (Geo) | C13H17NO4Ni | |
| 3535 | Ni(II)C4N (VAXSUI) | C13H17NO4Ni | |
| 3536 | Ni(II)(DMG) (NIMGLO10) (Geo) | C8H14N4O4Ni | |
| 3537 | Ni(II)(DMG) (NIMGLO10) | C8H14N4O4Ni | |
| 3538 | Ni(II)(H2O)6 | H12O6Ni | |
| 3539 | Ni(II)(H2O)6 (Geo) | H12O6Ni | |
| 3540 | Ni(II)O6(2+) (JERNID) (Geo) | H12O6Ni | |
| 3541 | Ni(II)O6(2+) (JERNID) | H12O6Ni | |
| 3542 | Ni(II)O6 (AQACNI) (Geo) | C10H18O6Ni | |
| 3543 | Nickel EDTA | C10H12N2O8Ni | |
| 3544 | Nickel(I) fluoride | FNi | |
| 3545 | Nickel(I) fluoride (Geo) | FNi | |
| 3546 | Methyl nickel(II) fluoride | CH3FNi | |
| 3547 | Methyl nickel(II) fluoride (Geo) | CH3FNi | |
| 3548 | Nickel(IV) oxide difluoride | OF2Ni | |
| 3549 | Nickel(IV) oxide difluoride (Geo) | OF2Ni | |
| 3550 | cis-Ni(II)F2.(H2O)2 | H4O2F2Ni | |