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Fast atom bombardment mass spectrometry of the coordination complexes of the ligand 5, 5, 7, 12, 12, 14- hexamenthyl-1, 4, 8, 11-tetraazacycloteradecane

A number of metal complexes containing the ligand 5,5,7,12,12,14-hexamethyl-l,4,8,11-tetra-azatetradecane were synthesized and analyzed using electron impact (EI) and fast atom bombardment (FAB). The FAB mass spectra were obtained in positive and negative ion mode. FAB in the positive ion mode proved to be the most successful technique for the identification of these compounds. In the majority of cases the spectra obtained using positive ion FAB were structurally informative, although not all showed molecular (M+) or quasimolecular ([M+H]+) ions. The fragmentations observed were characteristic of the ligands, and were interpreted based on the chemistry of these compounds.

The News, 5 September 1813 (no. 429) - Newspaper

Volumes of interest were published between 1812 and 1815 with articles about the War of 1812.

The News, 5 December 1813 (no. 439) - Newspaper

Volumes of interest were published between 1812 and 1815 with articles about the War of 1812.

The War, 5 December 1812 (vol. 1, no. 24) - Newspaper

Volumes of interest were published between 1812 and 1815 with articles about the War of 1812.

Receipt from The Big 22, Dry Goods, Millinery and Mantles, St. Catharines

Receipt from The Big 22, Dry Goods, Millinery and Mantles, St. Catharines for payment on account, Jan26, 1887.

Receipt from The Big 22, St. Catharines

Receipt from The Big 22, St. Catharines for payment on account, March 31, 1887.