TY - JOUR
T1 - Novel o-Phenylenediseleno Bridged Bis(β-cyclodextrin)s Complexes with Platinum(IV) and Palladium(II) Ions
AU - Liu, Yu
AU - Li, Bin
AU - Wada, Takehiko
AU - Inoue, Yoshihisa
N1 - Funding Information:
This work was supported by National Outstanding Youth Fund (Grant No. 29625203) and Natural Science Foundation (Grant No. 29676021) of China, Trans-Century Training Programme Foundation for the Talents of the State Education Commission of China, and Natural Science Fund of Tianjin Municipality, which are gratefully acknowledged.
PY - 1999
Y1 - 1999
N2 - The novel o-phenylenediseleno bridged bis(cyclodextrin)s and its complexes with platinum(IV) and palladium(II) ions have been synthesized and characterized by elemental analyses, 1H NMR, infrared, and thermal analysis. Fluorescence spectrophotometric titrations have been performed in aqueous buffer solution (pH 7.20) at 25.0°C to give the complex stability constants (Ks) and Gibbs free energy change (-ΔG°) for the 1:1 inclusion complexation of natural β-cyclodextrin, the o-phenylenediseleno bridged bis(cyclodextrin)s 1 and its platinum(IV) complex 2 with 8-Anilino-1-naphthalenesulfonic Acid Ammonium Salt (ANS ammonium). The molecular inclusion ability of ANS ammonium by the three host compounds are discussed from the viewpoints of size/shape-fit concept and the multipoint recognition mechanism.
AB - The novel o-phenylenediseleno bridged bis(cyclodextrin)s and its complexes with platinum(IV) and palladium(II) ions have been synthesized and characterized by elemental analyses, 1H NMR, infrared, and thermal analysis. Fluorescence spectrophotometric titrations have been performed in aqueous buffer solution (pH 7.20) at 25.0°C to give the complex stability constants (Ks) and Gibbs free energy change (-ΔG°) for the 1:1 inclusion complexation of natural β-cyclodextrin, the o-phenylenediseleno bridged bis(cyclodextrin)s 1 and its platinum(IV) complex 2 with 8-Anilino-1-naphthalenesulfonic Acid Ammonium Salt (ANS ammonium). The molecular inclusion ability of ANS ammonium by the three host compounds are discussed from the viewpoints of size/shape-fit concept and the multipoint recognition mechanism.
KW - ANS ammonium
KW - Bridged bis(cyclodextrin)s
KW - Inclusion complexation
KW - Organoselenium
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U2 - 10.1080/10610279908054511
DO - 10.1080/10610279908054511
M3 - Article
AN - SCOPUS:0001566634
SN - 1061-0278
VL - 10
SP - 279
EP - 285
JO - Supramolecular Chemistry
JF - Supramolecular Chemistry
IS - 4
ER -