A precise low-temperature crystal structure of Bis(cyclopentadienyl)beryllium

  title={A precise low-temperature crystal structure of Bis(cyclopentadienyl)beryllium},
  author={K. Nugent and J. Beattie and T. Hambley},
  journal={Australian Journal of Chemistry},
The crystal structure of bis(cyclopentadienyl)beryllium has been redetermined at 128(3) K. The crystals are monoclinic, space group P21/n, with unit cell a 5.993(5), b 7.478(4), c 8.978(5)A, β 85.94(6)o, and Z 2. The essential 'slip-sandwich' structure previously reported is confirmed. The beryllium is disordered between two equivalent sites. In each site it is centrally bonded to one ring and peripherally bonded to the other. There is a small alternation in the C-C distances in the… Expand

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