Selective Synthesis of Co8S15 Cluster in Bowl-Shaped Template of the Pentaaryl[60]fullerene Ligand

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• 作者：Masashi Maruyama ; Kenta Imoto ; Matthias K枚nig ; Dirk M. Guldi ; Shin-ichi Ohkoshi ; Eiichi Nakamura ; Yutaka Matsuo
• 刊名：The Journal of the American Chemical Society
• 出版年：2013
• 出版时间：July 31, 2013
• 年：2013
• 卷：135
• 期：30
• 页码：10914-10917
• 全文大小：297K
• 年卷期：v.135,no.30(July 31, 2013)
• ISSN：1520-5126

文摘

A cobalt鈥搒ulfur cluster Co₈S₁₅ with molecular formula of (C₆₀Ar₅)-Co₈S₁₅ⁿBu₂-(C₆₀Ar₅) (Ar = 4-^tBuC₆H₄) was selectively synthesized from a pentaaryl[60]fullerene cobalt trisulfide complex, (畏⁵-C₆₀Ar₅)CoS₃. The bowl-shaped steric templating fullerene ligand, as well as the metastable cobalt trisulfide moiety, played important roles in the exclusive cluster formation. X-ray crystallography, as well as electrochemical, time-resolved photophysical, and magnetic, measurements revealed a mixed-valence cluster with six cobalt(III) and two high-spin cobalt(II) centers showing reversible redox behavior and photoinduced charge separation.