Synthesis of a Neo-Confused Octaphyrin and the Formation of Its Mononuclear Complexes

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• 作者：Kai Zhang ; Junda Zhang ; Xin Li ; Rui Guo ; Hans 脜gren ; Zhongping Ou ; Masatoshi Ishida ; Hiroyuki Furuta ; Yongshu Xie
• 刊名：Organic Letters
• 出版年：2015
• 出版时间：October 2, 2015
• 年：2015
• 卷：17
• 期：19
• 页码：4806-4809
• 全文大小：322K
• ISSN：1523-7052

文摘

Novel neo-confused octaphyrin(1.1.1.1.1.1.1.0) (1) was synthesized by oxidative ring closure of an octapyrrane bearing two terminal 鈥渃onfused鈥?pyrroles. Crystal structures of its Zn(II) and Cu(II) complexes (2 and 3) show a figure-of-eight conformation with unique mononuclear coordination structures. Photophysical data and theoretical calculations suggest that the neo-confused octaphyrin 1 is a 34蟺 electron conjugated species showing nonaromaticity. Coordination of copper and zinc ions results in the further narrowing of the HOMO鈥揕UMO gaps.