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CHCl3) were relatively small, implying that the Cotton effect
of the p-conjugated unit in the polymer arises from the
chirality around the metal-complex moiety and the conforma-
tional change does not induce the chiral higher-ordered struc-
ture of the whole polymer chain due to the free rotation of the
triazolyl-fluorenylene-triazolyl unit.
In summary, we synthesized optically active polymers con-
taining P-stereogenic bisphosphine and 1,2,3-triazole moieties
in the repeating unit by Huisgen cycloaddition polymerization.
We demonstrated the drastic conformational change in the
polymer via bidentate and tetradentate coordination to
Pt(II) and Cu(I), respectively. Further investigations on the
higher-ordered-structure changes of P-stereogenic polymers by
the metal coordination that give rise to the colorimetric and/or
fluorometric detection of metal ions are currently underway.
This work was supported by Grant-in-Aid for Science Research
on Priority Areas (No. 20036027, Synergy of Elements) from
Ministry of Education, Culture, Sports, Science and Technology,
Japan. H.I. appreciates Research Fellowships from the Japan
Society for the Promotion of Science for Young Scientists.
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employed for NMR solvent; therefore, the solvent peak appeared
at around 8.0 ppm in the 1H NMR spectrum.
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a
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c
7544 Chem. Commun., 2010, 46, 7542–7544
This journal is The Royal Society of Chemistry 2010