Synthesis and characterization of Cu(II), Ni(II), and Fe(III) complexes of 5-(8-ethoxycarbonyl-1-
naphthyl)-10,15,20-triphenyl porphyrin 期刊名称: Journal of Coordination Chemistry
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作者: Zhang, Xiaolu,Jiang, Jiaxun,Fang, Weiguang,Hu, Chuanjiang
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年份: 2013年
期号: 第13期
陈旧反义词
关键词: Chiral porphyrin; Naphthyl; Spontaneous resolution; Crystal structure抽奖活动方案
摘要:We have synthesized three complexes of 5-(8-ethoxycarbonyl-1-naphthyl)-10,15,20-triphenyl porphyrin (ENTPP), [Cu(ENTPP)], [Ni(ENTPP), and
愚人节的由来[Fe(ENTPP)Cl]. X-ray crystallography reveals that copper and nickel species are
four-coordinate, while the iron complex is five-coordinate. The porphyrin in all the three species maintains similar conformations, in which rotational hindrance makes the ester group at the 8-position
of naphthyl lie above the porphyrin plane leading to axial chirality in the single molecule. However, only chiral crystals of [Cu(ENTPP)] were obtained by spontaneous resolution upon crystallization, while [Ni(ENTPP)
and [Fe(ENTPP)Cl] were obtained as achiral crystals of racemic compounds. CD spectra have also confirmed the chirality of the crystalline samples. The origin of CD signals has also been discusd.
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