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The Effect Of Tungsten(0)Pentacarbonyl On Coordinated Ligands, Janice Imada Byington
The Effect Of Tungsten(0)Pentacarbonyl On Coordinated Ligands, Janice Imada Byington
University of the Pacific Theses and Dissertations
A series of monosubstituted tungsten(0)pentacarbonyl complexes, W(CO)5L (L = water, hydrogen sulfide, pyrazine, pyrimidine, 4,4'-bipyridine, 4-cyanopyridine, isonicotinamide, and methanol) were synthesized and characterized. The purpose of this project was to determine the effect of the W(CO)5 moiety on the coordinated ligand, L.
The visible spectra of the synthesized W(CO)5L complexes typically exhibited a maximum around 400 nm ((epsilon) (TURN) 4000). The infrared spectra of these complexes exhibited the characteristic three band pattern (2A1 + E) in the carbonyl region ((TURN)2070 cm-1, (TURN)1930 cm-1, (TURN)1900 cm-1. The pKa's of …