Výzkum komplexů mědi pomocí hmotnostní spektrometrie

• Main Author: Yassaghi, Ghazaleh
• Other Authors: Roithová, Jana
• Format: Doctoral Thesis
• Language: English
• Published: 2018
• Online Access: http://www.nusl.cz/ntk/nusl-373054

This dissertation thesis reports the study of several copper complexes and their reactivity in the gas phase. The complexes were analyzed using different methods, namely, electrospray ionization-mass spectrometry (ESI-MS), infrared multiphoton dissociation (IRMPD) spectroscopy and theoretical calculations. In the first part, the complexes of redox-active ligands (catechol, maltol, and phenanthraquinone) with copper were studied under electrospray ionization conditions. [Cu(PQ)2]+ (PQ = 9,10-phenanthraquinone), [Cu(maltol)(maltol-H)]+ and [Cu(maltol)(maltol-H2)]+ were produced by electrospray ionization. The copper complexes were compared with complexes of other metals (Zn, Ag, and Na), and the structures were studied by collision induced dissociation (CID) and IRMPD spectroscopy. The redox process of copper complexes was studied using the C-O stretching mode as a redox marker and using fragmentation experiments. Both the phenanthraquinone and maltol ligands showed redox activity of the studied copper complexes in the gas phase. In the second part, negatively charged complexes of copper with pincer ligand L (L = N,N'-bis[2,6-diisopropylphenyl]-2,6-pyridinedicarboxamide) were investigated to show the effects of different counter-ions. The results showed that electrospray ionization of copper chlorate...