Chemistry: electrical and wave energy – Processes and products – Processes of treating materials by wave energy
Reexamination Certificate
2005-06-23
2010-02-02
Wong, Edna (Department: 1795)
Chemistry: electrical and wave energy
Processes and products
Processes of treating materials by wave energy
Reexamination Certificate
active
07655115
ABSTRACT:
An apparatus and method provide a solute-solvent solution that allows the solute to become photo-protonated by the solvent on absorption of ultraviolet light. The solute is 1,2,3,4,5,6,7,8-octamethylanthracene (OMA). The solvent is 1,1,1,3,3,3-hexafluoro-2-propanol (HFIP). The protonated form of the solute absorbs visible light to change the coloration of the solution from a substantially clear state to a colored state.
REFERENCES:
Eberson et al., “Generation and Reactions of Radical Cations from the Photolysis of Aromatic Compounds with Tetranitromethane in 1,1,1,3,3,3-Hexafluoropropan-2-ol”, Research on Chemical Intermediates, vol. 22, No. 9, no month, 1996, pp. 799-820.
Bouas-Laurent, Henri & Hienz-Durr, 2001. “Organic Photo-chronism,” Pure Appl. Chem., vol. 73, pp. 639-665, no month.
Ireland, J. F. & P. A. H. Wyatt, 1976. “Acid-Base Properties of Electronically Excited States of Organic Molecules,” Advances in Physical Organic Chemistry, vol. 12, pp. 132-221, no month.
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Vander Donckt, E. D. Lietaer, & J. Nasielski, 1970.Proprieties Acido-Basiques de Derives Aromatiques non Substitues dans les Etats Electroniques Exites Singulet et Triplet, Bulletin de Societes Chemiques Belges, vol. 79, pp. 283-290, no month.
Steenken, S. And R. A. McClelland, 1990. “248-mm Laser Flash Photoprotonation of Mesitylene, Hexameththylbenzene, and 1,3,5-Triethoxytenzene in 1,1,1,3,3,3-Hexafluorosiso-propyl Alchohol, Formation and Electrophylic Reactivities of the Cyclohexadienyl Cations,” J. Am. Chem. Soc., vol. 112, pp. 9648-9649, no month.
Becker Carol A.
Glad Wayne E.
Eppele Kyle
Lipovsky Peter A.
The United States of America as represented by the Secretary of
Wong Edna
LandOfFree
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