| # | Species | Formula |
| 6601 | Praseodymium complex, CCDC: CUMCOC (Geo) | C16H28O18Pr2 | |
| 6602 | Praseodymium complex, CCDC: HEDBOH (Geo) | C30H42N8O18Pr2 | |
| 6603 | Praseodymium complex, CCDC: XIZRAZ (Geo) | C20H32N8O20Pr2 | |
| 6604 | Praseodymium complex, CCDC: PAJJIT (Geo) | C24H30N4O6F36Pr2 | |
| 6605 | Praseodymium complex, CCDC: BABZOT (Geo) | C42H34O20Cl12Pr2 | |
| 6606 | Neodymium complex, CCDC: QEBJIQ (Geo) | C25H37Nd | |
| 6607 | Neodymium complex, CCDC: FIMFEM (Geo) | C20H20NNd | |
| 6608 | Neodymium complex, CCDC: BILSIY (Geo) | C14H39N9Nd | |
| 6609 | Neodymium complex, CCDC: XONYII (Geo) | C45H33N9Nd | |
| 6610 | Neodymium complex, CCDC: LUDQIK (Geo) | C30H42N11Nd | |
| 6611 | Neodymium complex, CCDC: NAVCIW (Geo) | C34H50B2N14Nd | |
| 6612 | Neodymium complex, CCDC: MEDMIR (Geo) | C20H27O2Nd | |
| 6613 | Neodymium complex, CCDC: WEFPUS (Geo) | C38H61O2Nd | |
| 6614 | Neodymium complex, CCDC: VIVBOR (Geo) | C36H39O3Nd | |
| 6615 | Neodymium complex, CCDC: MIPTIO (Geo) | C27H27N4O3Nd | |
| 6616 | Neodymium complex, CCDC: WEFVUY (Geo) | C57H57N6O3Nd | |
| 6617 | Neodymium complex, CCDC: QAYWOC (Geo) | C49H77O4Nd | |
| 6618 | Neodymium complex, CCDC: ROMXIA (Geo) | C72H52O4Nd | |
| 6619 | Neodymium complex, CCDC: RIJSEI (Geo) | C58H49O5Nd | |
| 6620 | Neodymium complex, CCDC: CANBOI (Geo) | C39H48N9O6Nd | |
| 6621 | Neodymium complex, CCDC: BAFYUD (Geo) | C20H18N5O8Nd | |