TY - JOUR
T1 - Fluorescence color modulation by intramolecular and intermolecular π-π interactions in a helical zinc(II) complex
AU - Mizukami, Shin
AU - Houjou, Hirohiko
AU - Sugaya, Kenta
AU - Koyama, Emiko
AU - Tokuhisa, Hideo
AU - Sasaki, Takeshi
AU - Kanesato, Masatoshi
PY - 2005/1/11
Y1 - 2005/1/11
N2 - When a fluorescent compound shows unique optical properties, an elucidation of the mechanism may lead to an important development of novel sensing strategies. A helical 3,3′-di-tert-butylsalen-zinc(II) complex, [Zn 2L12], has a red-shifted fluorescence as compared to that of [ZnL22], a half-structured mononuclear complex of [Zn2L12]; in addition, [Zn 2L12] exhibits a fluorescence color change from green to light blue under external stimulations. We investigated the origins of these phenomena by spectroscopy, fluorescence lifetime measurement, fluorescence microscopy, X-ray powder diffraction, and X-ray single-crystal analysis. From the experimental data, we concluded that intramolecular and intermolecular π-π interactions are critical elements that determine the shifts of the fluorescence to a longer wavelength.
AB - When a fluorescent compound shows unique optical properties, an elucidation of the mechanism may lead to an important development of novel sensing strategies. A helical 3,3′-di-tert-butylsalen-zinc(II) complex, [Zn 2L12], has a red-shifted fluorescence as compared to that of [ZnL22], a half-structured mononuclear complex of [Zn2L12]; in addition, [Zn 2L12] exhibits a fluorescence color change from green to light blue under external stimulations. We investigated the origins of these phenomena by spectroscopy, fluorescence lifetime measurement, fluorescence microscopy, X-ray powder diffraction, and X-ray single-crystal analysis. From the experimental data, we concluded that intramolecular and intermolecular π-π interactions are critical elements that determine the shifts of the fluorescence to a longer wavelength.
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U2 - 10.1021/cm049744s
DO - 10.1021/cm049744s
M3 - Article
AN - SCOPUS:11844253777
SN - 0897-4756
VL - 17
SP - 50
EP - 56
JO - Chemistry of Materials
JF - Chemistry of Materials
IS - 1
ER -