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Linear Polymeric C702- Ions.

Holger Brumm1, Eva Peters1, Martin Jansen1

  • 1Max-Planck-Institut für Festkörperforschung Heisenbergstrasse 1, 70569 Stuttgart (Germany) Fax: (+49) 711-689-1502.

Angewandte Chemie (International Ed. in English)
|May 2, 2018
PubMed
Summary
This summary is machine-generated.

Researchers synthesized single crystals of linear polymeric C70 fulleride, enabling the first complete structural analysis of such polymers. This study reveals how C70 fulleride cage geometry is affected by linkage, showing bond length alternation decreases along the unit.

Keywords:
anionsbariumfullerenespolymerssolid-state chemistry

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Area of Science:

  • Materials Science
  • Solid-State Chemistry
  • Polymer Chemistry

Background:

  • Polymeric fullerides are advanced materials with unique electronic and structural properties.
  • Understanding the precise structure of polymeric fullerides is crucial for tailoring their applications.
  • Previous studies have faced challenges in obtaining detailed structural information on these complex polymers.

Purpose of the Study:

  • To synthesize single crystals of a linear polymeric C70 fulleride.
  • To perform a complete structural analysis of the synthesized polymeric fulleride.
  • To investigate the impact of polymerization on the C70 fulleride cage geometry.

Main Methods:

  • Synthesis of linear polymeric (C70^2-)n fulleride under mild conditions.
  • Single crystal X-ray diffraction for complete structural determination.
  • Analysis of bond length alternations within the C70 units.

Main Results:

  • Successful synthesis of single crystals of linear polymeric C70 fulleride.
  • First complete structural analysis of a polymeric fulleride achieved.
  • Observed a decrease in bond length alternation from linkage sites towards the center of the C70 units.
  • Detailed characterization of the C70^2- building block geometry.

Conclusions:

  • The synthesis of single crystals facilitates unprecedented structural insights into polymeric fullerides.
  • Polymerization significantly influences the C70 cage geometry, with effects diminishing along the molecule.
  • This work provides a foundational understanding for designing and utilizing polymeric fullerides.