Photoionization of alkylphenothiazinesulfonates in reversed micelles: Effects of cosurfactants and location of chromophore

Journal Article · Thu Jun 28 04:00:00 EDT 1990 · Journal of Physical Chemistry; (USA)

DOI:https://doi.org/10.1021/j100376a034· OSTI ID:6378529

Hu, Ming; Kevan, L ^[1]

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1. Univ. of Houston, TX (USA)

The photoionization of alkylphenothiazinesulfonates which are designed to localize the phenothiazine chromophore at different positions in reversed micelles was observed by electron spin resonance (ESR). The compounds used were 10-methylphenothiazine (MP), sodium 10-methylphenothiazinesulfonate (C{sub 1}PS), sodium 10-dodecylphenothiazinesulfonate (C{sub 12}PS), sodium 3-(10{prime}-phenothiazinyl)propanesulfonate (PC{sub 3}S), sodium 6-(10{prime}-phenothiazinyl)hexane-1-sulfonate (PC{sub 6}S), and sodium 12-(10{prime}-phenothiazinyl)dodecane-1-sulfonate (PC{sub 12}S). The reversed micelles are composed of cetyltrimethylammonium bromide (CTAB), water, and a mixture of n-octane and 1-alcohol (1-butanol, 1-hexanol, or 1-octanol) as cosurfactant. Also sodium bis(2-ethyl-1-hexyl) sulfosuccinate (AOT) reverse micelles that contain AOT, water, and isooctane were studied. The relative photoionization yields at 77 K were measured by ESR.

• OSTI ID: 6378529
• Journal Information: Journal of Physical Chemistry; (USA), Journal Name: Journal of Physical Chemistry; (USA) Vol. 94:13; ISSN JPCHA; ISSN 0022-3654
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400500* -- Photochemistry
DATA
DATA ANALYSIS
ENERGY
ENERGY SOURCES
EXPERIMENTAL DATA
INFORMATION
IONIZATION
MATERIALS
MEASURING INSTRUMENTS
MEASURING METHODS
MICELLAR SYSTEMS
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC SULFUR COMPOUNDS
PHOTOCHROMIC MATERIALS
PHOTOIONIZATION
RENEWABLE ENERGY SOURCES
SOLAR ENERGY
SULFONATES
SURFACTANTS