J. Eberhardt, I. Hoare, D. Johnson
Nov 1, 1982
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Influential Citations
7
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Journal name not available for this finding
Abstract
Abstract Bis(1,1,1,5,5,5-hexafluoropentane-2,4-dionato) dioxo uranium (VI) is stable and volatile at ≈120°C, particularly with a ligand such as ammonia or trimethyl phosphate, and susceptible to multiphoton dissociation (mpd) via tle uranyl asymmetric vibration at ≈950 cm −1 . There are two dissociation paths: (i) detachment of the ligand at fluences below 0.2 J cm −2 ; (ii) permanent dissociation Of UO 2 (hfacac) 2 into UO 2 F 2 and a furanone C 5 F 5 O 2 H at fluences above 0.6 J cm −2 . Ligand detachment appears to be a conventional unimolecular mpd reaction describable by master equations in spite of the remarkably low fluence threshold. Permanent dissociation shows much greater chemical complexity.