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UV laser desorption/ionisation mass spectrometry of the triruthenium clusters Ru3(CO)12−n(PPh3)n (n=1, 2 and 3) |
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| Authors: | Paul J Dyson Andrew K Hearley Brian F G Johnson J Scott McIndoe Patrick R R Langridge-Smith |
| Affiliation: | a Department of Chemistry, University of York, Heslington, York, YO10 5DD, UK;b Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, UK;c Department of Chemistry, University of Edinburgh, West Mains Road, Edinburgh, EH9 3JJ, UK |
| Abstract: | The negative ion ultraviolet laser desorption mass spectra of Ru3(CO)12 and its triphenylphosphine derivatives Ru3(CO)12−n(PPh3)n (n=1–3) have been recorded using laser desorption/ionisation time-of-flight mass spectrometry (LDI-TOF-MS). The spectra contain peaks in the parent region together with peaks at higher masses due to extensive gas phase reactions. Substitution of one to three carbonyls by the bulky triphenylphosphine ligand has a number of interesting effects on the spectra, most notably, increasing the degree of coordinative unsaturation of the gas phase clusters in the molecular ion region and increasing the intensity of the subsequent high mass reaction products. |
| Keywords: | Laser desorption/ionisation Mass spectrometry Ruthenium complexes Carbonyl complexes Phosphine complexes Cluster complexes |
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