Title: An oxacalix[2]arene[2]pyrimidine-bis(Zn-porphyrin) tweezer as a selective receptor towards fullerene C-70
Authors: Van Rossom, Wim
Kundrat, Ondrej
Ngo, Thien Huynh
Lhotak, Pavel
Dehaen, Wim ×
Maes, Wouter #
Issue Date: May-2010
Publisher: Pergamon-elsevier science ltd
Series Title: Tetrahedron letters vol:51 issue:18 pages:2423-2426
Abstract: An oxacalix[2]arene[2]pyrimidine-bis(Zn-II-porphyrin) conjugate was readily prepared via nucleophilic aromatic substitution of a phenolic AB(3)-Zn-porphyrin on the upper rim of a (1,3-alternate) 5,17-bis(methylsulfonyl)oxacalix[4]arene precursor. Efficient 1:1 complex formation between the 'jaws' bisporphyrin tweezer and fullerene C-70 was evidenced by H-1 NMR titrations (K = 3.0 x 10(4) M-1), while no detectable complexation could be observed with C-60. On the other hand, an analogous oxacalix[4]arene-bis(Cu-corrole) conjugate did not show any measurable (C-60 or C-70) fullerene binding. (C) 2010 Elsevier Ltd. All rights reserved.
ISSN: 0040-4039
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Molecular Design and Synthesis
× corresponding author
# (joint) last author

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