Methane as a Selectivity Booster in the Arc-Discharge Synthesis of Endohedral Fullerenes: Selective Synthesis of the Single-Molecule Magnet Dy2TiC@C80 and Its Congener Dy2TiC2@C80

Katrin Junghans, Christin Schlesier, Aram Kostanyan, Nataliya A. Samoylova, Qingming Deng, Marco Rosenkranz, Sandra Schiemenz, Rasmus Westerstroem, Thomas Greber, Bernd Buechner, Alexey A. Popov

Research output: Contribution to journalJournal articleResearchpeer-review

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.
Original languageEnglish
JournalAngewandte chemie-international edition
Volume54
Issue number45
Pages (from-to)13411-13415
Number of pages5
ISSN1433-7851
DOIs
Publication statusPublished - 2015
Externally publishedYes

Keywords

  • Acetylides
  • Carbides
  • Endohedral Fullerenes
  • Lanthanides
  • Single-Molecule Magnets

Cite this

Junghans, K., Schlesier, C., Kostanyan, A., Samoylova, N. A., Deng, Q., Rosenkranz, M., Schiemenz, S., Westerstroem, R., Greber, T., Buechner, B., & Popov, A. A. (2015). Methane as a Selectivity Booster in the Arc-Discharge Synthesis of Endohedral Fullerenes: Selective Synthesis of the Single-Molecule Magnet Dy2TiC@C80 and Its Congener Dy2TiC2@C80. Angewandte chemie-international edition, 54(45), 13411-13415. https://doi.org/10.1002/anie.201505870