Event Title

Dinuclear Copper (KK) Complexes of Imidazole-4/5-Dicarboxylate

Faculty Mentor

Faculty Mentors: August A. Gallo, Salah S. Massoud, Franz A. Mautner (Technische Universität Graz)

Location

Orchestra Room, Angelle Hall

Start Date

12-4-2014 10:45 AM

End Date

12-4-2014 11:45 AM

Description

Imidazole-4,5-dicarboxylic acid (H3Imdc) and its derivatives can bind metal ions in a variety of coordination bonding modes, depending on the successive deprotonation of H3Imdc. Reactions of a methanolic solution containing the tridentate amines N,N-Bis(2-pyridylmethyl)-methylamine (MeDPA) or 2,6-[bis(pyrazol-1H-yl)methyl)]pyridine (bpzpy) with an aqueous mixture containing equimolar amounts of Cu(ClO4)2·6H2O and imidazole-4,5-dicarboxylic acid disodium salt (Na2HImdc) afforded the dinuclear complexes [Cu2(MeDPA)2(μ4-HImdc)(H2O)(ClO4)]ClO4·3H2O (1) and [Cu2(bpzpy)2(μ4-HImdc)(H2O)2](ClO4)2·2½H2O (2), respectively. The isolated complexes were characterized by elemental microanalyses, IR and UV-Vis spectroscopy, single crystal X-ray crystallography and by magnetic susceptibility measurements over the temperature range 2–295 K.

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Apr 12th, 10:45 AM Apr 12th, 11:45 AM

Dinuclear Copper (KK) Complexes of Imidazole-4/5-Dicarboxylate

Orchestra Room, Angelle Hall

Imidazole-4,5-dicarboxylic acid (H3Imdc) and its derivatives can bind metal ions in a variety of coordination bonding modes, depending on the successive deprotonation of H3Imdc. Reactions of a methanolic solution containing the tridentate amines N,N-Bis(2-pyridylmethyl)-methylamine (MeDPA) or 2,6-[bis(pyrazol-1H-yl)methyl)]pyridine (bpzpy) with an aqueous mixture containing equimolar amounts of Cu(ClO4)2·6H2O and imidazole-4,5-dicarboxylic acid disodium salt (Na2HImdc) afforded the dinuclear complexes [Cu2(MeDPA)2(μ4-HImdc)(H2O)(ClO4)]ClO4·3H2O (1) and [Cu2(bpzpy)2(μ4-HImdc)(H2O)2](ClO4)2·2½H2O (2), respectively. The isolated complexes were characterized by elemental microanalyses, IR and UV-Vis spectroscopy, single crystal X-ray crystallography and by magnetic susceptibility measurements over the temperature range 2–295 K.