A variety of highly hydrated ions were generated and studied using electrospray ionization mass spectrometry (ESI-MS) including proton, a series of triply charged lanthanide ions, the doubly charged lead ion and various methylated guanidinium ions. In each case large hydrated water clusters were mass selected and fragmented through collision induced dissociation (CID) to investigate their properties. The fragmentation of protonated water clusters highlighted the stability of the “magic” water cluster [H(H2O)21]+. Typically unstable triply charge lanthanide water clusters and the previously unobserved doubly charged lead water clusters were generated. Fragmentation studies indicated that both the charge density and the geometry of the clusters affect their stability. The charge reduction of triply charged lanthanide clusters led to the direct observation of ion evaporation. Finally, the dehydration of various methylated guanidinium ions indicated a structural basis for differences in their ability to hydrogen bond.
| Identifer | oai:union.ndltd.org:uvic.ca/oai:dspace.library.uvic.ca:1828/1380 |
| Date | 28 April 2009 |
| Creators | McQuinn, Keri Jean |
| Contributors | McIndoe, J. Scott, Hof, Fraser |
| Source Sets | University of Victoria |
| Language | English, English |
| Detected Language | English |
| Type | Thesis |
| Rights | Available to the World Wide Web |
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