Solution Properties of Some Iron and Copper Macrocycles.

Solution studies were conducted on iron(ll) phthalocyanine (FePc) and three copper macrocycle complexes. Concentrations of saturated solutions of FePc in pyridine, 2-methylpyridine, 3-methy1 - pyridine, and 4-methyl pyridine were determined from visible spectral data, and in dimethyl sulfoxide (DMSO) were obtained from atomic absorption analysis. Kinetic data for the dissociation of FePc in pyridine is reported. Magnetic susceptibilities of FePc in pyridine, 2-methylpyridine, 3-methylpyridine, and 4-methylpyridine indicate the formation of a d5 low-spin radical. In DMSO, FePc is diamagnetic. However, a paramagnetism plausibly explained by a d5 high-spin radical occurs with heating in the presence of methylene chloride.The macrocycle compounds studied were copper complexes of 1,A,7,10-tetraazadecane, 1,5,8,12-tetraazadodecane, and 1,4,8,11-tetraazacyclotetradecane. Visible spectral data for the complexes in DMSO are reported. Line-broadening and contact shift data for the complexes in DMSO indicate fast exchange and small hyperfine coupling constants. Solution magnetic susceptibilities of the complexes in DMSO indicate the absence of dimers.

Level thesis:degree_level

Thesis

Year

1977

Author dc:creator

• Miles, Danny Gene, Jr

• Magnetic susceptibilities
• Copper complexes
• Dimethyl sulfoxide
• Methylene chloride

Repository record dc:identifier

https://digitalcommons.library.uab.edu/etd-collection/7067

OAI identifier oai:identifier

oai:digitalcommons.library.uab.edu:etd-collection-8059