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'Ligand Binding' in keywords Facet   Publication Year 1990  [X]
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1990[X]
1Author    JonathanM. Keske, J.Malcolm Bruce, P. Leslie, D. UttonRequires cookie*
 Title    A New Method of Solvation Analysis: Applications to Quinones  
 Abstract    A new method o f analysis o f the factor contributing to solvation o f small molecules is de­ scribed. A pproxim ations o f the energetic contributions to the entry o f a molecule into water have been derived from partition coefficient data o f solutes and selected derivatives from a multiplicity o f solvents. These include taking separate account energy o f the cost o f introduction o f a molecular cavity in water, the strength o f solute-water dipolar interactions, and the strengths o f hydrogen bond formation with water o f the lone pairs and hydroxylic hydrogens associated with the molecule. In this report the solvation-free energies o f benzoquinone and hydroquinone in water are described. We also consider the solvation o f the sem iquinone anion and show it to be fundamentally different from that o f either the quinone or hydroquinone; this is discussed as a potentiality for selective binding ("solvation") o f quinone, sem iquinone and hydroquinone in sites o f redox catalysis such as those found in the photosynthetic reaction center. 
  Reference    Z. Naturforsch. 45c, 430 (1990); received December 18 1989 
  Published    1990 
  Keywords    Quinone, Ligand Binding, Reaction Centers, Solvation 
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 TEI-XML for    default:Reihe_C/45/ZNC-1990-45c-0430.pdf 
 Identifier    ZNC-1990-45c-0430 
 Volume    45