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   sci.optics      Discussion relating to the science of op      12,750 messages   

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   Message 11,194 of 12,750   
   Timothy Sutter to Timothy Sutter   
   Re: Analogy between chromophore and auxo   
   01 Oct 12 00:00:45   
   
   XPost: sci.chem   
   From: a202010@lycos.com-   
      
   Timothy Sutter wrote:   
      
   > Salmon Egg wrote:   
      
   > > Can a dopant be considered to be an auxochrome?   
      
   > if you were to say that a 'sensitizer' heightens   
   > the luminosity of the 'activator,' then you could   
   > say it was 'like' an auxochrome which may heighten   
   > the intensity of the chromophore's color,   
      
   > is it -possible- to make a useful analogy?   
      
   > maybe sort of...   
      
      
   it's sort of like, you'd be saying the -cloth-   
    was the host lattice for the dye   
      
   in the same way as CaF2 is the host lattice   
   for Eu3+ ions.   
      
   but in this respect, Eu3+ would -be- the 'dye'   
      
   but then you'd be saying that it was something   
   about the CaF2 lattice that set up an energetic   
   situation in the europium that resulted   
   in the fluorescence,   
      
   whereas, you wouldn't say that there was anything   
   about the -cloth- that comntributed to the color   
   of the dye, at all.   
      
   so, any analogy would probably be centered around   
   the case of a sensitizer/activator where the sensitizer   
   could be said to be behaving somewhat like an auxochrome   
   in the overall crystal system.   
      
      
   if you just have an activator and no sensitizer,   
   there doesn't seem to be any real similarity at all.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)   

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