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Digitale Medien

Revised structure of a natural flavone from Tephrosia candida

Horie, T. ; Kawamura, Y. ; Kobayashi, T. ; [weitere]

Amsterdam : Elsevier

Phytochemistry 37 (1994), S. 1189-1191

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ISSN: 0031-9422

Schlagwort(e): 5,4'-dihydroxy-3,6,7-trimethoxyflavone. ; 5,4'-dihydroxy-3,6,8-trimethoxyflavone ; Leguminosae ; Tephrosia candida ; candirone ; penduletin ; seed

Quelle: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002

Thema: Biologie , Chemie und Pharmazie

Materialart: Digitale Medien

URL: http://linkinghub.elsevier.com/retrieve/pii/S0031-9422(00)89555-2

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Digitale Medien

Thermally induced structural modification in Pt/C X-ray multilayer mirrors fabricated by electron beam evaporation (1996)

Lodha, G. S. ; Pandita, S. ; Gupta, A. ; [weitere]

Springer

Applied physics 62 (1996), S. 29-32

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ISSN: 1432-0630

Schlagwort(e): 68.35.Fx ; 68.60.Dv ; 68.65. + g

Quelle: Springer Online Journal Archives 1860-2000

Thema: Maschinenbau , Physik

Notizen: Abstract Platinum-carbon multilayer mirrors with a bilayer spacing of 50 Å were fabricated in an ultrahigh vacuum electron beam evaporator. The thermal stability of these multilayers was studied under vacuum annealing using X-ray reflectivity and X-ray diffraction. Up to 450°C, the bilayer spacing increases monotonically accompanied by a gradual increase in crystallite size and grain texture. At 500°C multilayer reflection vanishes, platinum crystallites grow abruptly, and there is a strong texture of platinum in the [220] -plane. Possible reasons for thermally induced structural modifications in these multilayers are discussed.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1007/BF01568083

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Digitale Medien

Photoinduced electron transfer catalysis of titania particles modified with a Ru(2,2′-bipyridyl)3 2+-grafted polymer by visible light (2000)

Yoshinaga, K. ; Toyofuku, I. ; Yamashita, K. ; [weitere]

Springer

Colloid & polymer science 278 (2000), S. 481-484

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ISSN: 1435-1536

Schlagwort(e): Key words Hybrid titania ; Photocatalysis ; Visible light ; Ru(2 ; 2′-bipyridyl)3Cl2 ; Polymer modification

Quelle: Springer Online Journal Archives 1860-2000

Thema: Chemie und Pharmazie , Maschinenbau

Notizen: Abstract The preparation and photocatalysis of colloidal titania modified with Ru(2,2′-bipyridyl)3 2+-grafted polyacrylate were investigated. Visible light irradiation of the Ru(2,2′-bipyridyl)3 2+-tethered titania in pH 7.0 buffer solution gave electron transfer to methyl viologen to form the cation radical via electron migration from the Ru(II) complex to the titania surface.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1007/s003960050543

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