f-element/crown ether complexes. 14. Synthesis and crystal structure of [Lu(OH2)8] [Na(12-crown-4)2]Cl4·2H2O

  • Rogers R
  • J. Voss E
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Abstract

[Lu(OH2)8] [Na(12-crown-4)2]Cl4·2H20 crystallizes at 5 °C from a reaction mixture of LuCl3·6H2O and 12-crown-4 (in a 1:3 solution of CH3OH: CH3CN) following the addition of NaCl. The crystal structure of this complex has been determined by single crystal X-ray diffraction techniques. The title complex is monoclinic, P21/c, with a=15.265(2), b=14.203(2), c=16.030(1) Å, β=94.570(9)°, and Dc=1.67 g cm-3for Z=4 formula units. Primarily organic and inorganic zones exist essentially in layers parallel to bc. The organic layers consist of [Na(12- crown-4)2]+cations with the oxygen atoms forming a square antiprism around Na+(NaO=2.49(3) Å average). The [Lu(OH2)8]3+cations (also essentially square antiprismatic, LuO=2.34(2) Å), the chloride ions, and the two uncoordinated water molecules are hydrogen bonded forming a network in the b and c directions. The two unique cations are packed linearly along a in a staggered square face to square face arrangement. © 1987.

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Authors

  • Robin D. Rogers

  • Eric J. Voss

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