Y. Sugita, A. Ouchi
1987
Citations
0
Influential Citations
20
Citations
Journal
Bulletin of the Chemical Society of Japan
Abstract
The crystal and molecular structures of the chloroacetato complexes of gadolinium(III), erbium(III), and ytterbium(III) indicated in the title were determined by the single-crystal X-ray diffraction method. In addition to these three complexes, the isomorphous dysprosium(III) salt was also obtained. Their chemical composition, M3L9·5H2O (where M=Gd, Dy, Er, or Yb; HL=chloroacetic acid), is the same as that of the light lanthanoid(III) (La–Eu) chloroacetates, though the latter crystals are monoclinic. The cell constants of the ytterbium(III) salt, for example, are: triclinic, space group P\bar1, a=13.278(10), b=13.624(6), c=12.067(4) A α=96.62(3), β=100.68(5), γ=67.40(4)°, Z=2 (including 6 metal atoms). There are three kinds of crystallographically independent metal atoms; Yb(1), Yb(2), and Yb(3): Yb(1) and Yb(2) are octa-coordinated (square-antiprism geometry) and Yb(3) is ennea-coordinated (monocapped square-antiprism geometry). Two oxygen atoms around the last type of the metal atom are the more separat...