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Spontaneous ligand nitrosation and self-assembly into a pentacopper metallacrown complex.

Joe OtsukiTatsuki SekineYuki KidaYoshinao ShinozakiSayaka KobayashiTakahiro TamuraKosuke SugawaIsao YoshikawaHirohiko HoujouHiroki YoshikawaArata Tsukamoto
Published 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.
Keyphrases
  • aqueous solution
  • high resolution
  • nitric oxide
  • magnetic resonance
  • drinking water
  • magnetic resonance imaging
  • mass spectrometry
  • tandem mass spectrometry
  • contrast enhanced