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Synthesis, characterization, and bonding properties of polymeric fullerides AC70·nNH3 (A = Ca, Sr, Ba, Eu, Yb)

MPS-Authors
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Wedig,  U.
Department Quantum Materials (Hidenori Takagi), Max Planck Institute for Solid State Research, Max Planck Society;
Abteilung Jansen, Former Departments, Max Planck Institute for Solid State Research, Max Planck Society;

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Brumm,  H.
Abteilung Jansen, Former Departments, Max Planck Institute for Solid State Research, Max Planck Society;

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Jansen,  M.
Abteilung Jansen, Former Departments, Max Planck Institute for Solid State Research, Max Planck Society;

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Citation

Wedig, U., Brumm, H., & Jansen, M. (2002). Synthesis, characterization, and bonding properties of polymeric fullerides AC70·nNH3 (A = Ca, Sr, Ba, Eu, Yb). Chemistry - A European Journal, 8(12), 2769-2774.


Cite as: https://hdl.handle.net/21.11116/0000-000E-EEEF-A
Abstract
Reduction of C-70 with alkaline earth and rare earth metals
dissolved in liquid ammonia results in metal fulleride solvates
AC(70).nNH(3) (A = Ca, Sr, Ba, Eu, Yb) containing linear
polymeric, anionic chains (1)(infinity)[C-70(2-)] The compounds
were characterised by means of Raman spectroscopy and single-
crystal structure determination. The accurate crystal structure
of [Sr(NH3)(8)]C-70.3NH(3), determined with atomic resolution,
allowed for a comparison with results of quantum chemical
calculations. The nature of the C-C bonds in the fulleride is
analysed in detail leading to a model explaining the unexpected
polymerisation of C-70(2-).