SYNTHESIS AND REACTIVITY STUDIES OF METAL CARBONYL COMPLEXES WITH PYRIDINE/THIONE MIXED-DONOR LIGANDS

1 online resource (118 pages) : PDF

2015

University of North Carolina at Charlotte

A new synthetic route to o (mercaptoimidazolyl)pyridine ligands (R = Me, Bun) through a neutral intermediate o (imidazolyl)pyridine (o-impy) has been developed. The n-butyl-substituted ligand shows improved solubility in organic solvents. The alkyl substituent used does not have a major effect on the amount of electron donation to and from the metal center. The addition of a methylene spacer between pyridine and the imidazole increases the N-M-S bite angle for metal complexes. The coordination chemistry of o (mercaptoimidazolyl)picolines o mpicR (R = Me, Bun) to prepare LMo(CO)4 and LM(CO)3X (M = Mn, X = Br; M = Re, X = Cl, Br) was explored. The group 6 complexes showed low degradation points, which would make them ideal candidates for decomposition to MS2 (M = Mo, W). LRe(CO)5X (X = Cl, Br) complexes were tested for the electrolytic reduction of carbon dioxide by cyclic voltammetry and were able to reduce CO2 to CO.

masters theses

Chemistry

M.S.

Cabonyl
Carbon Dioxide
Rhenium

Chemistry

Rabinovich, Daniel

Jew, Richard
Pando, Miguel
Schmedake, Thomas

Thesis (M.S.)--University of North Carolina at Charlotte, 2015.

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Oian_uncc_0694N_10883

http://hdl.handle.net/20.500.13093/etd:1486