Pulse radiolysis study on electrons trapped in aqueous solid clathrates
Early concepts on the nature of the 620-nm trapped electron have now been supported by results obtained on clathrates other than tetrabutylammonium (TBA) hydroxide (TBAOH.29H/sub 2/O). In aqueous solid clathrates of trimethylamine, diethylamine, and tert-butylamine, similar e/sub t//sup -//sub (aq)/ transient spectra have been observed. These amines are protonated and OH/sup -/ ions are present in solution which produces a clathrate. In the process of clathrate crystallization from the melt or solution, typical anionic vacancies are created in which some OH/sup -/ ions are missing. Since that ion is a part of the water lattice its absence is equivalent to a vacancy of one water molecule in an aqueous surrounding. This unusual vacancy becomes an aqueous trap for electrons. The same applies to a vacancy of F/sup -/ in tetrabutylammonium fluoride clathrate (TBAF.32H/sub 2/O) which shows identical e/sub t//sup -//sub (aq)/ spectra. Aqueous solid clathrates of acetone and tetrabutylammonium oxalate (neutral pH of liquefied clathrate) do not show the typical high yield, comparatively long-lived e/sub t//sup -//sub (aq)/ spectrum, because there are no traps equivalent to those mentioned above. 25 references, 9 figures.
- Research Organization:
- Univ. of Notre Dame, IN
- OSTI ID:
- 5890207
- Journal Information:
- J. Phys. Chem.; (United States), Journal Name: J. Phys. Chem.; (United States) Vol. 90:5; ISSN JPCHA
- Country of Publication:
- United States
- Language:
- English
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Pulse radiolysis study on electrons trapped in semiclathrates and non-clathrate hydrates
Related Subjects
400301* -- Organic Chemistry-- Chemical & Physicochemical Properties-- (-1987)
ACETONE
AMINES
AMMONIUM COMPOUNDS
BEAMS
CARBOXYLIC ACID SALTS
CHEMICAL RADIATION EFFECTS
CHEMICAL REACTIONS
CHEMISTRY
CLATHRATES
CRYSTAL DEFECTS
CRYSTAL STRUCTURE
DATA
DECOMPOSITION
ELECTRON BEAMS
ELECTRONS
ELEMENTARY PARTICLES
ENERGY RANGE
EXPERIMENTAL DATA
FERMIONS
HYDRATES
INFORMATION
KETONES
LEPTON BEAMS
LEPTONS
MEV RANGE
MEV RANGE 01-10
NUMERICAL DATA
ORGANIC COMPOUNDS
OXALATES
PARTICLE BEAMS
POINT DEFECTS
PULSE TECHNIQUES
RADIATION CHEMISTRY
RADIATION EFFECTS
RADIOLYSIS
SOLVATED ELECTRONS
TRAPS
VACANCIES