| # | Species | Formula |
| 6538 | Cerium complex, CCDC: NOJTEL (Geo) | C32H40O8F12Ce | |
| 6539 | Cerium complex, CCDC: PUTQAW (Geo) | C24H24O12F12Ce | |
| 6540 | Cerium complex, CCDC: TADKEP (Geo) | C36H63N6Si3Ce | |
| 6541 | Cerium complex, CCDC: KEGVEX (Geo) | C66H69O6Si3Ce | |
| 6542 | Cerium complex, CCDC: AFURUO (Geo) | C12H44O8P4Ce | |
| 6543 | Cerium complex, CCDC: UKAPEB (Geo) | C50H44N3O13P4Ce | |
| 6544 | Cerium complex, CCDC: HIDLUB (Geo) | C29H38N5O4S3Ce | |
| 6545 | Cerium complex, CCDC: PIDBAF (Geo) | C11H20N3O6S3Ce | |
| 6546 | Cerium complex, CCDC: GAPFIM (Geo) | H6O13S4Ce | |
| 6547 | Cerium complex, CCDC: FUHFEZ (Geo) | C48H40N3O13S4Ce | |
| 6548 | Cerium complex, CCDC: VACMUI (Geo) | C50H74B4N20O2Ce2 | |
| 6549 | Cerium complex, CCDC: KIPLEA (Geo) | C54H114O6Ce2 | |
| 6550 | Cerium complex, CCDC: SOZLUO (Geo) | C60H126O6Ce2 | |
| 6551 | Cerium complex, CCDC: XEXCUY (Geo) | C56H48N6O14Ce2 | |
| 6552 | Cerium complex, CCDC: CUMCIW (Geo) | C16H28O18Ce2 | |
| 6553 | Cerium complex, CCDC: BABZIN (Geo) | C42H34O20Cl12Ce2 | |
| 6554 | Praseodymium complex, CCDC: GIWWEO (Geo) | C18H27N9Pr | |
| 6555 | Praseodymium complex, CCDC: NPYPRP10 (Geo) | C48H36N12Pr | |
| 6556 | Praseodymium complex, CCDC: KOBRUO (Geo) | C64H32N16Pr | |
| 6557 | Praseodymium complex, CCDC: RUGNOW (Geo) | C27H30B3N18Pr | |
| 6558 | Praseodymium complex, CCDC: MIPTEK (Geo) | C27H27N4O3Pr | |