Supramolecular polymerization of thiobarbituric acid naphthalene dye
Takumi Aizawa1, Maika Kawaura1, Takashi Kajitani2
1Division of Advanced Science and Engineering, Graduate School of Science and Engineering, Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba 263-85223, Japan.
None:
2-Thiobarbituric acid-functionalized naphthalene dye selectively self-assembles into crystalline fibers to show material properties that are different from those of a previously reported oxo-barbituric acid derivative affording curved supramolecular polymers via the formation of hydrogen-bonded rosettes. Detailed studies using 1H-NMR, DFT calculation and X-ray diffraction revealed that the crystalline fiber is formed through a tape-like hydrogen-bonding pattern due to the weaker hydrogen-bond-acceptor ability of the thiocarbonyl group.
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