Zobrazeno 1 - 10
of 110
pro vyhledávání: '"C. Tanielian"'
Publikováno v:
Quantum Electronics. 30:445-448
Absorption and fluorescence spectra and quantum yields of fluorescence and singlet oxygen generation were studied in air-saturated solutions of a newly synthesised dye, tetra(1,1,4,4-tetramethyl-6,7-tetralino)porphyrazine (TMTP), in benzene. Photophy
Publikováno v:
Free Radical Research. 20:345-363
The objective of this work is to reexamine the competitive degradation of deoxyribose by hydroxyl radicals (.OH) produced by the reaction between H2O2 and Fe(2+)-EDTA. The .OH radicals produced attack deoxyribose (D, rate constant kD) and eventually
Publikováno v:
Journal of the Less Common Metals. 72:291-305
Resume L'effet du cobalt et du molybdene sur la reduction par l'hydrogene de la forme initiale de l'autre metal dans le cas des catalyseurs dhydrodesulfuration MoCoAl 2 O 3 a ete mis en evidence grâce a l'utilisation de masses ayant des rappor
Autor:
C. Tanielian, J. Chaineaux
Publikováno v:
Journal of Polymer Science: Polymer Chemistry Edition. 17:715-729
We have studied the rose bengal-sensitized photooxygenation of cis- and trans-polyisoprene model compounds that contain one unit in methanolic solution, characterized the resulting monohydroperoxides, and determined their yield. We have also demonstr
Autor:
C. Tanielian, J. Chaineaux
Publikováno v:
Journal of Photochemistry. 9:19-32
We have studied the rose bengal sensitized photo-oxygenation of cis-polyisoprene and trans-polyisoprene model compounds containing two units in methanolic solutions. The following reactions have been observed: bu a dihydroperoxy-endoperoxide has neve
Sensitized photo-oxidation of polyisoprene: effect of the presence of hydroxy and hydroperoxy groups
Autor:
J. Chaineaux, C. Tanielian
Publikováno v:
European Polymer Journal. 16:619-622
The effect of a hydroxy group on the reaction of singlet oxygen with an unsaturated group has been studied for linalol and geraniol, model molecules for hydroxylated polyisoprene. Only some of all the possible reactions actually occur. A hydroxy grou
Autor:
R. Bartsch, C. Tanielian
Publikováno v:
Journal of Catalysis. 50:35-42
Hydrodesulfurization of benzothiophene (BT) and dibenzothiophene (DBT) dissolved in n-dodecane has been studied over several prereduced Fe2O3Al2O3 catalysts. Compared to CoOMoO3Al2O3, iron catalysts appear less active in BT hydrogenolysis, b
Publikováno v:
Tetrahedron Letters. 18:797-800
Autor:
R. Mechin, C. Tanielian
Publikováno v:
Tetrahedron. 41:2139-2146
Results from the study of singlet oxygen reaction with cis-1,4-polyisoprene and with various models are compared. The nature of the products and their reactivity are discussed for two kinds of models, namely oligodienes and trisubstituted mono-olefin
Autor:
A. Bouassida, C. Tanielian
Publikováno v:
Journal of the Less Common Metals. 81:207-220
Resume L'effet du cobalt sur l'activite de catalyseurs d'hydrodesulfuration Mo-Co-Al 2 O 3 a ete etudie, sur des masses soumises a une reduction par l'hydrogene et a une reduction-sulfuration par H 2 -H 2 S ou H 2 -benzothiophene-dodecane, en faisant