- 作者: Takumi Konno,* Atsushi Toyota and Asako Igashira-Kamiyama
- 作者服務機構: Department of Chemistry, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
- 中文摘要: Treatment of (NH4)[Au(D-Hpen-S)2] (D-H2pen = D-penicillamine) with CoCl2·6H2O in an acetate buffer solution, followed by air oxidation, gave neutral AuI3CoIII3 and anionic AuI3CoIII2 polynuclear complexes, [Au3Co3(D-pen-N,O,S)6] ([1]) and [Au3Co2(D-pen-N,S)6]3– ([2]3–), which were separated by anion-exchange column chromatography. Complexes [1] and [2]3– each formed a single isomer, and their structures were determined by single-crystal X-ray crystallography. In [1], each of three [Au(D-pen-S)2]3– metalloligands coordinates to two CoIII ions in a bis-tridentate-N,O,S mode to form a cyclic AuI3CoIII3 hexanuclear structure, in which three [Co(D-pen-N,O,S)2]– octahedral units and six bridging S atoms adopt trans(O) geometrical and R chiral configurations, respectively. In [2]3–, each of three [Au(D-pen-S)2]3– metalloligands coordinates to two CoIII ions in a bis-bidentate-N,S mode to form a AuI3CoIII2 pentanuclear structure, in which two [Co(D-pen-N,S)3]3– units and six bridging S atoms adopt L and R chiral configurations, respectively.
- 英文摘要: --
- 中文關鍵字: Chiral metalloaggregates; S-donating metalloligand; Polynuclear complex.
- 英文關鍵字: --