Author: "Richard J. Lavallee" / Topic: ion - Searchworks@Jio Institute Digital Library Search Results

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Start Over Author "Richard J. Lavallee" Topic ion

Author: Bentley J. Palmer, Guillermo Ferraudi, Richard J. Lavallee, Charles Kutal, Horst Hennig, and Roland Billing
Subjects: Inorganic Chemistry, chemistry.chemical_compound, chemistry, Transition metal, Metal K-edge, Acetylacetone, Ultraviolet irradiation, Physical and Theoretical Chemistry, Photochemistry, Ion
Abstract: Ultraviolet irradiation of Pt(acac)2 (acac- is the anion of acetylacetone) in nonaqueous solvents results in competing photochemical processes whose relative importance depends upon the solution en...
Published: 1997
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Author: Richard J. Lavallee and Matthew B. Zimmt
Subjects: chemistry.chemical_classification, Inorganic chemistry, General Engineering, Salt (chemistry), Electrolyte, Chloride, Ion, chemistry.chemical_compound, chemistry, Tetrabutylammonium hexafluorophosphate, medicine, Emission spectrum, Physical and Theoretical Chemistry, Absorption (chemistry), Methylene, medicine.drug
Abstract: The effects of tetraalkylammonium salts on intramolecular charge-transfer absorption and emission spectra in solution are measured. Addition of tetrabutylammonium hexafluorophosphate (TBAPF 6 ) to methylene chloride solutions of the donor-spacer-acceptor compound 2 reduces the intensity of the charge-transfer emission band and red shifts the emission maximum. The band maximum (cm -1 ) and width of the lowest-energy, charge-transfer absorption transition in 1 increase upon addition of salts. The observed shift and broadening are strongly dependent on the structure of the salt cation, being larger for tributylmethylammonium (TBMPF 6 ) than for tetrabutylammonium (TBAPF 6 ) salts, but are independent of the salt anion
Published: 1994
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