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Crystal structures of two isotypic lanthanide(III) complexes: tri-aqua-[2,6-di-acetyl-pyridine bis-(benzoyl-hydrazone)]methano-llanthanide(III) trichloride methanol disolvates (LnIII = Tb and Dy).

ABSTRACT: The title lanthanide complexes, [Ln(DAPBH2)(CH3OH)(H2O)3]Cl3·2CH3OH [LnIII = Tb and Dy; DAPBH2 = 2,6-di-acetyl-pyridine bis-(benzoyl-hydrazone), C23H21N5O2], are isotypic. The central lanthanide ions are nine-coordinate, being ligated by three N and two O atoms from the penta-dentate DAPBH2 ligand, and four O atoms from the coordinated methanol mol-ecule and three coordinated water mol-ecules. The coordination geometry of the lanthanide ion is a distorted capped square anti-prism. In the crystals, the various components are linked by O-H⋯Cl, N-H⋯Cl and O-H⋯O hydrogen bonds, forming three-dimensional supra-molecular frameworks. Within the frameworks, there are C-H⋯Cl and C-H⋯O hydrogen bonds and offset π-π inter-actions (inter-centroid distance ca 3.81 Å).

SUBMITTER: Kachi-Terajima C 

PROVIDER: S-EPMC5946983 | biostudies-literature | 2018 Apr

REPOSITORIES: biostudies-literature

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Crystal structures of two isotypic lanthanide(III) complexes: tri-aqua-[2,6-di-acetyl-pyridine bis-(benzoyl-hydrazone)]methano-llanthanide(III) trichloride methanol disolvates (<i>Ln</i><sup>III</sup> = Tb and Dy).

Kachi-Terajima Chihiro C   Kimura Norihisa N  

Acta crystallographica. Section E, Crystallographic communications 20180316 Pt 4

The title lanthanide complexes, [<i>Ln</i>(DAPBH<sub>2</sub>)(CH<sub>3</sub>OH)(H<sub>2</sub>O)<sub>3</sub>]Cl<sub>3</sub>·2CH<sub>3</sub>OH [<i>Ln</i><sup>III</sup> = Tb and Dy; DAPBH<sub>2</sub> = 2,6-di-acetyl-pyridine bis-(benzoyl-hydrazone), C<sub>23</sub>H<sub>21</sub>N<sub>5</sub>O<sub>2</sub>], are isotypic. The central lanthanide ions are nine-coordinate, being ligated by three N and two O atoms from the penta-dentate DAPBH<sub>2</sub> ligand, and four O atoms from the coordinated metha  ...[more]

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