All ETDs from UAB

Document Type

Thesis

Date of Award

1977

Abstract

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.

Comments

MS - Master of Science/Master of Surgery; ProQuest publication number 31751987

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