Variation of alkylmethylviologen radical cation-water interactions in micelles and vesicles from ESEM spectroscopy: effect of alkyl chain length
The variation in alkylmethylviologen radical cation-water interactions with the alkyl chain length in frozen sodium dodecyl sulfate (SDS) micelles and dihexadecyl phosphate (DHP) vesicles were investigated by electron spin echo modulation spectroscopy. In the DHP vesicle system, the measured deuterium modulation depth associated with deuteriated water indicated a significant decrease in the magnitude of these interactions with an increase in the alkyl chainlength of the viologen. However, a comparable trend was absent in the SDS micelle system. In addition, the strength of the dimethylviologen radical cation-water interactions in SDS micelles was much weaker than those measured for any of the viologen radicals in the vesicle system. These observations were found to be in qualitative agreement with currently proposed models of the binding characteristics of alkylmethylviologens to DHP vesicles and SDS micelles and may also reflect structural differences between these two types of assemblies.
- Research Organization:
- Univ. of Houston, TX
- DOE Contract Number:
- AS05-80ER10745
- OSTI ID:
- 6137807
- Journal Information:
- J. Phys. Chem.; (United States), Journal Name: J. Phys. Chem.; (United States) Vol. 91:15; ISSN JPCHA
- Country of Publication:
- United States
- Language:
- English
Similar Records
Photoionization of alkylmethylviologens in vesicles: Effects to the alkyl chain length in alkylmethylviologen and radical conversion to surfactant radicals
Photoreduction of alkylmethylviologens in dipalmitoylphosphatidylcholine vesicles. Effect of the pendent alkyl chain length and the addition of cholesterol on the net photoyield
Related Subjects
400201* -- Chemical & Physicochemical Properties
400202 -- Isotope Effects
Isotope Exchange
& Isotope Separation
400500 -- Photochemistry
ACOUSTIC ESR
AZINES
BIPYRIDINES
CATIONS
CHARGED PARTICLES
CHEMICAL REACTIONS
DATA
DEUTERIUM COMPOUNDS
ELECTROMAGNETIC RADIATION
ELECTRON SPIN RESONANCE
EXPERIMENTAL DATA
HETEROCYCLIC COMPOUNDS
HYDROGEN COMPOUNDS
INFORMATION
IONS
LOW TEMPERATURE
MAGNETIC RESONANCE
MICELLAR SYSTEMS
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
OXYGEN COMPOUNDS
PYRIDINES
RADIATIONS
RADICALS
RESONANCE
ULTRAVIOLET RADIATION
WATER