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Dissertation
Thioether-oxime complexes of nickel(II) and copper(II)
Doctor of Philosophy (Ph.D.), Drexel University
Jul 2001
DOI:
https://doi.org/10.17918/etd-144
Abstract
Nickel(II) and Copper(II) complexes of tetra-and pentadentatethioether-oxime ligands have been synthesized. An extraordinary range ofproperties are exhibited by the complexes. The tetradentate thioether-oximecomplexes of copper(II) form axial/equatorial dimeric complexes in the solidstate. These complexes exhibit weak ferromagnetic coupling betweenadjacent copper(II) ions. ESR spectra reveal that the dimer is broken insolution, and indeed the ESR spectra reveal tetragonal symmetry about thecopper(II) ions in the tetradentate thioether-oximes. The electrochemistry of these complexes supports the fact that oxime-containing ligands stabilizecopper(II). Nickel(II) forms a wide range of structures with the tetradentate ligands; the geometries vary from low-spin square planar to high-spin trinuclear complexes. The nickel(II) ions in trimeric complexes are disposed at the corners of an isosceles triangle and couple to each other through weak antiferromagnetic interactions. The electrochemistry of the trimeric nickel(II) complexes reveals that Ni(III) is attainable, due to the presence of anionic donors. Nickel(II) and Copper(II) form octahedral and square-pyramidal complexes with the pentadentate thioether-oxime ligands. The electrochemistry of the Ni(II) complexes reveals that most of the pentadentate ligands can stabilize both Ni(I) and Ni(III)
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Details
- Title
- Thioether-oxime complexes of nickel(II) and copper(II)
- Creators
- Michael J. Prushan - DU
- Contributors
- Anthony William Addison (Advisor) - Drexel University (1970-)
- Awarding Institution
- Drexel University
- Degree Awarded
- Doctor of Philosophy (Ph.D.)
- Publisher
- Drexel University; Philadelphia, Pennsylvania
- Resource Type
- Dissertation
- Language
- English
- Academic Unit
- College of Arts and Sciences; Chemistry; Drexel University
- Other Identifier
- 144; 991014632307004721