Methane as a selectivity booster in the arc-discharge synthesis of endohedral fullerenes: Selective synthesis of the single-molecule magnet Dy2TiC@C80and Its Congener Dy2TiC2@C80
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Date
2015
Volume
54
Issue
45
Journal
Angewandte Chemie
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Publisher
Hoboken, NJ : Wiley
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Abstract
The use of methane as a reactive gas dramatically increases the selectivity of the arc‐discharge synthesis of M‐Ti‐carbide clusterfullerenes (M=Y, Nd, Gd, Dy, Er, Lu). Optimization of the process parameters allows the synthesis of Dy2TiC@C80‐I and its facile isolation in a single chromatographic step. A new type of cluster with an endohedral acetylide unit, M2TiC2@C80, is discovered along with the second isomer of M2TiC@C80. Dy2TiC@C80‐(I,II) and Dy2TiC2@C80‐I are shown to be single‐molecule magnets (SMM), but the presence of the second carbon atom in the cluster Dy2TiC2@C80 leads to substantially poorer SMM properties.
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Junghans, K., Schlesier, C., Kostanyan, A., Samoylova, N. A., Deng, Q., Rosenkranz, M., et al. (2015). Methane as a selectivity booster in the arc-discharge synthesis of
endohedral fullerenes: Selective synthesis of the single-molecule
magnet Dy2TiC@C80and Its Congener Dy2TiC2@C80 (Hoboken, NJ : Wiley). Hoboken, NJ : Wiley. https://doi.org//10.1002/anie.201505870
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CC BY-NC-ND 4.0 Unported