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1995 (1)
1991 (1)
1Author    Hans Friedewold, Wolfgang BrocknerRequires cookie*
 Abstract    a r ti c u la r V ib r a tio n S p e c tr u m o f A n tim o n y T ric h lo rid e C a u s e d by B o n d F lu c tu a tio n Vibration spectra of solid and molten antimony trichloride were recorded. In the solid state, vibration frequencies in addition to those of the SbCl3 molecules with their C3v symmetry indicate bond fluctuations according to 2 SbCl3 Sb++ SbClg. 
  Reference    Z. Naturforsch. 46a, 595—598 (1991); received April 27 1991 
  Published    1991 
  Keywords    SbCl3, Vibration spectrum Bond fluctuation, Electron transfer 
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 TEI-XML for    default:Reihe_A/46/ZNA-1991-46a-0595.pdf 
 Identifier    ZNA-1991-46a-0595 
 Volume    46 
2Author    Naoki Toshima, Yumi Yamaji, Toshiharu Teranishi, Tetsu YonezawaRequires cookie*
 Abstract    h o to s e n s itiz e d R e d u c tio n o f C a r b o n D io x id e in S o lu tio n U s in g N o b le -M e ta l C lu s te rs f o r E le c tr o n T r a n s f e r Dedicated to Prof. Hitoshi Ohtaki on the occasion of his 60th birthday Carbon dioxide was reduced to methane by visible-light irradiation of a solution composed of tris(bipyridine)ruthenium(III) as photosensitizer, ethylenediaminetetraacetic acid disodium salt as sacrificial reagent, methyl viologen as electron relay, and a colloidal dispersion of polymer-protected noble-metal clusters, prepared by alcohol-reduction, as catalyst. Among the noble-metal clusters examined, Pt clusters showed the highest activity for the formation of methane as well as hydrogen. In order to improve the activity, oxidized clusters and bimetallic clusters were also applied. For example, the CH4 yield in 3-h irradiation increased from 51 x 10"3 |xmol with unoxidized Pt clusters to 72 x 10" 3 pmol with partially oxidized ones. In the case of Pt/Ru bimetalic systems, the improve­ ment of the catalytic activity by air treatment was much greater than in case of monometallic clusters. 
  Reference    Z. Naturforsch. 50a, 283—291 (1995); received October 4 1994 
  Published    1995 
  Keywords    Carbon dioxide, Photosensitized reduction, Electron transfer, Metal cluster, Colloidal catalyst 
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 TEI-XML for    default:Reihe_A/50/ZNA-1995-50a-0283.pdf 
 Identifier    ZNA-1995-50a-0283 
 Volume    50