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

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

A cobalt–sulfur cluster Co8S15 with molecular formula of (C60Ar5)-Co8S15 n Bu2-(C60Ar5) (Ar = 4- t BuC6H4) was selectively synthesized from a pentaaryl[60]fullerene cobalt trisulfide complex, (η5-C60Ar5)CoS3. The bowl-shaped steric templating fullerene ligand, as well as the metastable cobalt trisul...

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Veröffentlicht in:Journal of the American Chemical Society 2013-07, Vol.135 (30), p.10914-10917
Hauptverfasser: Maruyama, Masashi, Imoto, Kenta, König, Matthias, Guldi, Dirk M, Ohkoshi, Shin-ichi, Nakamura, Eiichi, Matsuo, Yutaka
Format: Artikel
Sprache:eng
Schlagworte:
Chemistry Techniques, Synthetic
Cobalt - chemistry
Electrochemistry
Fullerenes - chemistry
Ligands
Magnetic Phenomena
Models, Molecular
Molecular Conformation
Sulfur - chemistry
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Zusammenfassung:A cobalt–sulfur cluster Co8S15 with molecular formula of (C60Ar5)-Co8S15 n Bu2-(C60Ar5) (Ar = 4- t BuC6H4) was selectively synthesized from a pentaaryl[60]fullerene cobalt trisulfide complex, (η5-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.
ISSN:0002-7863
1520-5126
DOI:10.1021/ja405045t