American Chemical Society

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Double Helices of a Pyridine-Appended Zinc Chlorophyll Derivative

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posted on 2013-04-10, 00:00 authored by Yoshinao Shinozaki, Gary Richards, Keizo Ogawa, Akihito Yamano, Kazuaki Ohara, Kentaro Yamaguchi, Shin-ichiro Kawano, Kentaro Tanaka, Yasuyuki Araki, Takehiko Wada, Joe Otsuki
Self-assembled structures formed from a pyridine-appended zinc chlorophyll derivative are reported. While the zinc complex forms cyclic oligomers in chloroform solution, as indicated by 1H NMR studies (including diffusion-ordered spectroscopy), vapor pressure osmometry, and cold-spray ionization mass spectrometry, it forms double-stranded helical coordination polymers in the solid state, as revealed by single-crystal X-ray analysis.