Copper acetylides may be the intermediate of some carbon-carbon coupling reactions. Metal acetylides were studied extensively due to their variable coordination modes. In order to mimic the structure of the intermediate, we synthesized different thioaminophosphine copper(I) complexes and tested their reactivity toward alkynes in this thesis. We introduced steric effect by controlling the carbon-chain length between second and third donor atoms of ligands and electronic effect by altering substituent groups of pheneylacetylenes. Results showed that alkynylcopper complexes were dimmeric in which the two copper(I) centers were brideged by two £g2-£b1-acetylides. Since sulfur atom of thioaminophosphine ligand was not coordinated to copper center, there was no steric effect observed in alkynylcopper complexes. No significant structural difference among alkynylcopper complexes due to electronic effect was seen either. Finally we tested reactions of thioiminophosphine copper(I) complexes toward thiophenolate. The product was a dinuclear copper(I) complex brideged by a £g2-£b1-thiophenolate ligand. Both copper(I) centers were coordinated with phosphorus, nitrogen and sulfur atoms of thioiminophosphine ligand extremely distorted tetrahedron geometry.

A series of nickel(II) and Pt(II) complexes supported by the bis(2-diphenylphosphinophenyl)amide ligand, [PNP]¢w have been prepared. In Nickel(II) chemistry, the halide complexes are both air and water stable. The nickel(II) alkyl and aryl derivatives were presented including those in which the alkyl contains

Includes bibliographical references (p. 62).

Thesis (doctoral)--Universität Jena, 1915. / Vita. Includes bibliographical references.

Thesis (Ph. D.)--University of Hong Kong. / Typewritten.

published_or_final_version / Chemistry / Doctoral / Doctor of Philosophy

published_or_final_version / Chemistry / Doctoral / Doctor of Philosophy

Studies with stratified cluster designs, called complex surveys, have increased in popularity in medical research recently. With the passing of the Affordable Care Act, more information about effectiveness of treatment, cost of treatment, and patient satisfaction may be gleaned from these large complex surveys. We introduce three separate methodological approaches that are useful in complex surveys.

No description available.

No description available.