Spontaneous ligand nitrosation and self-assembly into a pentacopper metallacrown complex.
Joe OtsukiTatsuki SekineYuki KidaYoshinao ShinozakiSayaka KobayashiTakahiro TamuraKosuke SugawaIsao YoshikawaHirohiko HoujouHiroki YoshikawaArata TsukamotoPublished in: Dalton transactions (Cambridge, England : 2003) (2018)
Upon mixing acetylacetonedioxime and copper(ii) nitrate in water, the acetylacetonedioxime is spontaneously nitrosated at the central α-carbon and four of the nitrosated ligand molecules and five Cu ions self-assemble into a pentanuclear metallacrown complex, whose structure has been revealed by single crystal X-ray analysis and magnetic interactions between the Cu ions in the complex have been probed. The lability of the core Cu ion in the complex is suggested.