Crystal structures of two isotypic lanthanide(III) complexes: triaqua[2,6-diacetylpyridine bis(benzoylhydrazone)]methanollanthanide(III) trichloride methanol disolvates (LnIII = Tb and Dy)
| Autor: | Chihiro Kachi-Terajima, Norihisa Kimura |
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| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: | |
| Zdroj: | Acta Crystallographica Section E: Crystallographic Communications, Vol 74, Iss 4, Pp 535-538 (2018) |
| Druh dokumentu: | article |
| ISSN: | 2056-9890 20569890 47413395 |
| DOI: | 10.1107/S2056989018004103 |
| Popis: | The title lanthanide complexes, [Ln(DAPBH2)(CH3OH)(H2O)3]Cl3·2CH3OH [LnIII = Tb and Dy; DAPBH2 = 2,6-diacetylpyridine bis(benzoylhydrazone), C23H21N5O2], are isotypic. The central lanthanide ions are nine-coordinate, being ligated by three N and two O atoms from the pentadentate DAPBH2 ligand, and four O atoms from the coordinated methanol molecule and three coordinated water molecules. The coordination geometry of the lanthanide ion is a distorted capped square antiprism. In the crystals, the various components are linked by O—H...Cl, N—H...Cl and O—H...O hydrogen bonds, forming three-dimensional supramolecular frameworks. Within the frameworks, there are C—H...Cl and C—H...O hydrogen bonds and offset π–π interactions (intercentroid distance ca 3.81 Å). |
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