Isolation of Enantiopure Crystals and Spectroscopic Properties of a Chiral Er-Containing Polyoxotungstate [Er(α2-P2W17O61)2]17−

DOI PDF 1 Citations 24 References
  • Jun Iijima
    Chemical Resources Laboratory, Tokyo Institute of Technology
  • Haruo Naruke
    Chemical Resources Laboratory, Tokyo Institute of Technology
  • Takanobu Sanji
    Chemical Resources Laboratory, Tokyo Institute of Technology

Abstract

<jats:title>Abstract</jats:title> <jats:p>Enantiopure crystals of chiral [l-/d-Er(α2-P2W17O61)2]17− polyanions were successfully resolved by using l-/d-proline (pro) as chiral auxiliaries. In both crystals, the chirality was stabilized by enantioselective interaction involving N–H···O hydrogen bonding between the polyanion and pro molecules. Circular dichroic spectroscopy in aqueous solutions revealed that partial racemization of the polyanions and the racemic equilibrium can be enantioselectively controlled by the amount of coexisting pro.</jats:p>

Journal

  • Chemistry Letters

    Chemistry Letters 41 (3), 295-297, 2012-02-25

    Oxford University Press (OUP)

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