Electron induced dissociation: A mass spectrometry technique for the structural analysis of trinuclear oxo-centred carboxylate-bridged iron complexes |
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Authors: | Malgorzata A Kaczorowska Helen J Cooper |
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Institution: | 1.School of Biosciences, College of Life and Environmental Sciences,University of Birmingham,Birmingham,UK |
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Abstract: | We report electron induced dissociation (EID) Fourier transform ion cyclotron resonance (FT-ICR) mass spectrometry of the
singly-charged cations Fe3O(CH3COO)6]+3 and Fe3O (HCOO)6+H2O]+. Trinuclear oxo-centered carboxylate-bridged iron complexes of this type are of interest due to their electronic and magnetic
properties, and because of their role as synthetic precursors of single molecule magnets. EID of these complexes is particularly
efficient and provides detailed information about the triangular core, and the nature and number of ligands. EID behavior
is in marked contrast to the collision induced dissociation (CID) of these species. Whereas EID allows virtually complete
structural characterization, the structural information provided by CID is very limited. The results suggest that EID is particularly
suitable for the structural analysis of singly-charged polynuclear metal complexes. |
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