Abstract

The objective of this research was to prepare a variety of functional group derivatives of the eight-coordinate complex [4-amino-N,N'-bis(2-hydroxybenzidene)-1,2-phenylenediaminato] [N,N'-bis(2-hydroxybenzidene)-1,2-phenylenediaminato]zirconium(IV), Zr(adsp)(dsp), for use as pendent groups on polymers. The synthetic method involved reaction of the free ligands di-2-hydroxybenzylidende-4-nitro-N,N'-phenylenediamine [H2(ndsp)] and a functional group derivative of di-2-hydroxybenzylidene-N,N'-phenylenediamine [H2(Rdsp), R = methyl, 3-methoxy, 5-methoxy, cyano, pyridyl nitrogen, and 3-fluoro substituents] with zirconium tetra-n-butoxide in 1:1:1 mole ratio, followed by column separation on silica gel and hydrogenation of the nitro group to amino group using hydrogen gas over Pd/C catalyst. The order of the latter two steps was chosen to affect the best column separation. Elemental anaylses, physical data, FT-IR, and NMR spectral data for six new Zr(adsp)(Rdsp) complexes are reported. Eleven new Zr(ndsp)(Rdsp) and related homoleptic complexes are also included to corroborate spectral assignments.

Publication Date

2004

Comments

Note: imported from RIT’s Digital Media Library running on DSpace to RIT Scholar Works in February 2014.

Document Type

Article

Department, Program, or Center

School of Chemistry and Materials Science (COS)

Campus

RIT – Main Campus

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