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Thermochemical Studies of NiII and ZnII Ternary Complexes Using Ion Mobility-Mass Spectrometry
Published on: June 8, 2022
2.2K
Dinuclear zinc(II) acetate complexes derived from N,N',S-tridentate Schiff bases: synthesis, structural study and
Odalys Anaya-Avila1, Oscar Muñoz-Granados1, Noemí Andrade-López1
1Área Académica de Química, Universidad Autónoma del Estado de Hidalgo, Ciudad Universitaria, Carretera Pachuca-Tulancingo, km 4.5 Colonia Carboneras, Mineral de la Reforma, Hidalgo 42184, Mexico.
Acta Crystallographica. Section C, Structural Chemistry
|October 4, 2024
Summary
Three new dinuclear zinc(II) acetate complexes were synthesized using Schiff base ligands. Structural analysis revealed distinct coordination modes and geometries, highlighting the role of bridging acetate ligands and noncovalent interactions in crystal packing.
Area of Science:
- Coordination Chemistry
- Organometallic Chemistry
- Materials Science
Background:
- Schiff base ligands are versatile in coordinating with metal ions.
- Zinc(II) complexes exhibit diverse structural motifs and applications.
- Understanding metal-ligand interactions is crucial for designing novel materials.
Purpose of the Study:
- To synthesize and characterize novel dinuclear zinc(II) acetate complexes.
- To investigate the coordination behavior of anionic Schiff base ligands with zinc(II).
- To elucidate the structural features and intermolecular interactions within the crystalline complexes.
Main Methods:
- Synthesis of dinuclear zinc(II) acetate complexes from 2-R-(pyridin-2-yl)benzothiazoline precursors and zinc acetate dihydrate.
- Crystallization and X-ray diffraction studies to determine molecular structures.
- Hirshfeld surface analysis to investigate intermolecular interactions.
Main Results:
- Three dinuclear zinc(II) acetate complexes, [Zn{L^n}(AcO)]2 (n=1-3), were successfully synthesized.
- Complexes feature tridentate Schiff base ligands and varying acetate bridging modes.
- X-ray diffraction revealed pentacoordinated zinc(II) ions with trigonal bipyramidal or distorted square pyramidal geometries.
- Hirshfeld analysis indicated significant H...H interactions, alongside C-H...C, C-H...O, and C-H...S interactions.
Conclusions:
- The study successfully synthesized and characterized three novel dinuclear zinc(II) acetate complexes.
- The coordination modes and structural diversity of these complexes were elucidated.
- Intermolecular interactions play a significant role in the crystal lattice cohesion of these zinc(II) complexes.
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