You need JavaScript to view this

Silver atom solvation and desolvation in ice matrices: study of solvation shell geometry by electron spin resonance and electron spin echo methods

Journal Article:

Abstract

Results of studies of the solvation shell structure of silver atoms in ice matrix at 4/sup 0/K by electron spin resonance (ESR) and electron spin echo spectrometry are reported. Drastic change in the hyperfine coupling constant of the silver atom was noted when the silver atom initially produced at 4/sup 0/K was warmed to 77/sup 0/K and reexamined by ESR at 4/sup 0/K. This suggested a very drastic rearrangement of the water molecules surrounding the silver atom. The geometric arrangement of water molecules around the silver atom produced at 4/sup 0/K was what would be expected for a solvated silver ion, indicating that no rearrangement had occurred after the silver atom formed. The addition of a little thermal excitation (heating to 77/sup 0/K) results in the geometry changes than can be explained by assuming either that a water molecule rotates around one of its OH bands or by the development of a hydrogen bond between the silver atom and one of the first solvation shell water molecules. Optical excitation in the absorption band of the silver atom in the ice matrix at 400nm resulted in desolvation of the silver ion or a reversion to the structure originally obtained by reaction  More>>
Publication Date:
Jan 01, 1978
Product Type:
Journal Article
Reference Number:
ERA-05-029412; EDB-80-084965
Resource Relation:
Journal Name: Ciencia (Mexico); (Mexico); Journal Volume: 6:1
Subject:
38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY; ATOMS; SOLVATION; SILVER COMPOUNDS; CHEMICAL RADIATION EFFECTS; ELECTRONS; ICE; LOW TEMPERATURE; ULTRALOW TEMPERATURE; CHEMISTRY; ELEMENTARY PARTICLES; FERMIONS; LEPTONS; RADIATION CHEMISTRY; RADIATION EFFECTS; TRANSITION ELEMENT COMPOUNDS; 400600* - Radiation Chemistry
OSTI ID:
5269374
Research Organizations:
Wayne State Univ., Detroit, MI
Country of Origin:
Mexico
Language:
English
Other Identifying Numbers:
Journal ID: CODEN: CIENA
Submitting Site:
TIC
Size:
Pages: 10
Announcement Date:

Journal Article:

Citation Formats

Kevan, L, and Narayana, P A. Silver atom solvation and desolvation in ice matrices: study of solvation shell geometry by electron spin resonance and electron spin echo methods. Mexico: N. p., 1978. Web.
Kevan, L, & Narayana, P A. Silver atom solvation and desolvation in ice matrices: study of solvation shell geometry by electron spin resonance and electron spin echo methods. Mexico.
Kevan, L, and Narayana, P A. 1978. "Silver atom solvation and desolvation in ice matrices: study of solvation shell geometry by electron spin resonance and electron spin echo methods." Mexico.
@misc{etde_5269374,
title = {Silver atom solvation and desolvation in ice matrices: study of solvation shell geometry by electron spin resonance and electron spin echo methods}
author = {Kevan, L, and Narayana, P A}
abstractNote = {Results of studies of the solvation shell structure of silver atoms in ice matrix at 4/sup 0/K by electron spin resonance (ESR) and electron spin echo spectrometry are reported. Drastic change in the hyperfine coupling constant of the silver atom was noted when the silver atom initially produced at 4/sup 0/K was warmed to 77/sup 0/K and reexamined by ESR at 4/sup 0/K. This suggested a very drastic rearrangement of the water molecules surrounding the silver atom. The geometric arrangement of water molecules around the silver atom produced at 4/sup 0/K was what would be expected for a solvated silver ion, indicating that no rearrangement had occurred after the silver atom formed. The addition of a little thermal excitation (heating to 77/sup 0/K) results in the geometry changes than can be explained by assuming either that a water molecule rotates around one of its OH bands or by the development of a hydrogen bond between the silver atom and one of the first solvation shell water molecules. Optical excitation in the absorption band of the silver atom in the ice matrix at 400nm resulted in desolvation of the silver ion or a reversion to the structure originally obtained by reaction of solver salts in ic matrix with radiation produced electrons. This was best explained by a charge transfer mechanism. (BLM)}
journal = {Ciencia (Mexico); (Mexico)}
volume = {6:1}
journal type = {AC}
place = {Mexico}
year = {1978}
month = {Jan}
}