Structural aspects of bis(quadridentate)zirconium(IV) complexes. Ligand motion and ligand exchange behavior of bis(n,n'-disalicylidene-1,2-phenylenediamino) zirconium(IV) and the two new complexes bis(n,n'disalcylidene-cis1,2-diaminocyclohexane)-zirconium(IV) and bis(n,n'disalicylidene-trans-1,2-diaminocyclohexane)-zirconium(IV)

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Title: Structural aspects of bis(quadridentate)zirconium(IV) complexes. Ligand motion and ligand exchange behavior of bis(n,n'-disalicylidene-1,2-phenylenediamino) zirconium(IV) and the two new complexes bis(n,n'disalcylidene-cis1,2-diaminocyclohexane)-zirconium(IV) and bis(n,n'disalicylidene-trans-1,2-diaminocyclohexane)-zirconium(IV)
Author: Cleary, Brian P.
Abstract: The synthesis of bis(quadridentate)-zirconium (IV) complexes was completed of which two new complexes, bis(N,N'-disalicylidene-cis-1,2,diamino-cyclohexane( zirconium (IV) and bis(N,N'disalicylidene-trans-1,2-diaminocyclohexane)zirconium(IV), were deemed suitable for physical and chemical comparisons to bis(N,N'-disalicylidene-1,2-phenylenediamino)-zirconium(IV). Using H-NMR spectroscopy at low temperatures, it was determined that the interconversion of the cyclohexane moiety of bis(N,N'disalicylidene-cis-1,2-diaminocyclohexane) zirconium(IV) begins to slow whereas, the motions associated with the backbones of the other two complexes do not. Furthermore, using H-NMR spectroscopy, it was determined that heating solutions of pairs of the complexes for four days at 155 C causes the complex to exchange ligands to form mixed-ligand complexes.
Record URI: http://hdl.handle.net/1850/11434
Date: 1989-08-09

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