Electron spin echo modulation studies of silver atom solvation and desolvation in ice matrices. [X days]
Electron spin echo modulation patterns have been obtained at 4.2 K and analyzed for desolvated silver atoms produced at 4.2 K by radiolysis of deuterated ice matrices containing AgF and for solvated silver atoms produced by brief warming to 77 K. The analysis shows that desolvated Ag/sup 0/ is surrounded by eight equivalent deuterons at 3.1 +- 0.1 A which suggests a tetrahedral model of four waters with their dipoles pointed away from Ag/sup 0/ (i.e., a solvated Ag/sup +/ geometry). Solvated Ag/sup 0/ appears to be formed by rotation of one or two waters around one of their OD bonds to put one or two deuterons at approx. 1.8 A from Ag/sup 0/. These close deuterons do not contribute to the echo modulation pattern because the nuclear splitting is larger than the microwave magnetic field, and the remaining six or seven deuterons at 3.1 A produce the modulation pattern.
- Research Organization:
- Department of Chemistry, Wayne State University, Detroit, Michigan 48202
- OSTI ID:
- 5183131
- Journal Information:
- J. Chem. Phys.; (United States), Journal Name: J. Chem. Phys.; (United States) Vol. 68:2; ISSN JCPSA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
400600* -- Radiation Chemistry
CHEMICAL RADIATION EFFECTS
CHEMICAL REACTIONS
CHEMISTRY
DECOMPOSITION
DISPERSIONS
ELECTROMAGNETIC RADIATION
ELECTRON SPIN RESONANCE
ELEMENTS
FLUORIDES
FLUORINE COMPOUNDS
HALIDES
HALOGEN COMPOUNDS
HEAVY WATER
HYDROGEN COMPOUNDS
ICE
IONIZING RADIATIONS
MAGNETIC RESONANCE
METALS
MIXTURES
OXYGEN COMPOUNDS
RADIATION CHEMISTRY
RADIATION EFFECTS
RADIATIONS
RADIOLYSIS
RESONANCE
SILVER
SILVER COMPOUNDS
SILVER FLUORIDES
SOLUTIONS
SOLVATION
SPIN ECHO
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
ULTRALOW TEMPERATURE
WATER
X RADIATION