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Publication Detail
Molecular design using electrostatic interactions. Part 2: Synthesis and properties of flexible dipodand di- and tetra- cations with restricted conformations. Charge, shape and size in molecular complexation
  • Publication Type:
    Journal article
  • Publication Sub Type:
    Article
  • Authors:
    Garratt PJ, Ng YF, Steed JW
  • Publication date:
    2000
  • Pagination:
    4501, 4509
  • Journal:
    Tetrahedron
  • Volume:
    56
  • Issue:
    26
  • Print ISSN:
    0040-4020
  • Keywords:
    analysis, ANION COORDINATION CHEMISTRY, Association, BENZENE, BINDING, carboxylates, Cations, CHARGE, COMPLEX, COMPLEXATION, COMPLEXES, CONSTANTS, design, ELECTROSTATIC INTERACTIONS, INCLUSION COMPLEXES, interaction, ligands, membrane, model, Molecular, molecular recognition, NUMBER, OXIDATION, POLYAMMONIUM RECEPTOR, polycations, RAY, recognition, Science, size, STATE, Structure, SUBSTITUENT, synthesis, transport, Water, X-ray
  • Notes:
    Journal Article JUN 23 325UA Garratt PJ Univ London Univ Coll, Dept Chem, 20 Gordon St, London WC1H 0AJ, England TETRAHEDRON
Abstract
A number of dipodand dications and tetracations were synthesised with structures based on 1,2,4,5-, penta- and hexa- substituted benzene, DABCO substituents providing the positive charges. The binding of these polycations in water to a variety of polyanions was examined with respect to the effect of the 'spectator' counter cations on the observed association constants. The polycations precipitate ferri- and ferrocyanide, in some cases preferentially for one oxidation state, and an X- ray crystallographic analysis of the complex between the tetracation 5 and ferricyanide reveals the complexity involved even in the molecular recognition of small, charged compounds. (C) 2000 Elsevier Science Ltd. All rights reserved
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