Crystal structure and thermal vibrations of cholesteryl acetate from neutron diffraction at 123 and 20 K.

@article{Weber1991CrystalSA,
  title={Crystal structure and thermal vibrations of cholesteryl acetate from neutron diffraction at 123 and 20 K.},
  author={Hans Weber and B. M. Craven and P J Sawzik and Richard K. McMullan},
  journal={Acta crystallographica. Section B, Structural science},
  year={1991},
  volume={47 ( Pt 1)},
  pages={116-27}
}
Cholesteryl acetate (C29H48O2) at 20 K is monoclinic, space group P2(1) with a = 16,521 (4), b = 9,220 (2), c = 17,620 (5) A, beta = 107.18 (2) degrees and Z = 4 (two molecules in the asymmetric unit). The crystal structure, earlier determined by X-ray diffraction at 123 K, has been redetermined at 123 and 20 K by neutron diffraction (7447 reflections at 123 K, 7281 at 20 K; sin theta/lambda less than 0.69 A-1) and refined by full-matrix least squares with 1423 variables to give R(F2) = 0.10 at… CONTINUE READING