| # | Species | Formula |
| 5106 | Ru2(CO)8 dianion (Geo) | C8O8Ru2 | |
| 5107 | Ru2(CO)8 dianion | C8O8Ru2 | |
| 5108 | Rhodium, cation | Rh | |
| 5109 | Rhodium, atom | Rh | |
| 5110 | Rhodium(III) hexacyanide (Geo) | C6N6Rh | |
| 5111 | Rhodium(III) hexacyanide | C6N6Rh | |
| 5112 | Rh(III)N6(3+) (CRHENC) (Geo) | C6H24N6Rh | |
| 5113 | Rh(III)N6(3+) (CRHENC) | C6H24N6Rh | |
| 5114 | Rh(III)N6(3+) (VENYAO) (Geo) | C12H18N6Rh | |
| 5115 | Rh(III)N6(3+) (VENYAO) | C12H18N6Rh | |
| 5116 | Rh(III)N6(3+) (HOHKEU) (Geo) | C12H30N6Rh | |
| 5117 | Rh(III)N6(3+) (HOHKEU) | C12H30N6Rh | |
| 5118 | Rhodium(II) oxide | ORh | |
| 5119 | Rhodium(II) oxide (Geo) | ORh | |
| 5120 | Rh(III)N6(3+) (LEJCUY) (Geo) | C18H39N7O2Rh | |
| 5121 | Rhodium tetracarbonyl, anion (Geo) | C4O4Rh | |
| 5122 | Rhodium tetracarbonyl, anion | C4O4Rh | |
| 5123 | Rh(III)N6 (GOYRER) (Geo) | C24H16N6O4Rh | |
| 5124 | Rhodium pentacarbonyl, cation (Geo) | C5O5Rh | |
| 5125 | Rhodium pentacarbonyl, cation | C5O5Rh | |
| 5126 | Rhodium(III) hexaquo (Geo) | H12O6Rh | |