Organoelement Compounds
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ChemInform Abstract: f-Element/Crown Ether Complexes. Part 4. Synthesis and Crystal and Molecular Structures of (MCl(OH2)2(18-crown-6))Cl2·2 H2O (M: Sm, Gd, Tb).
First published: September 22, 1987
Abstract
The reaction of the metal trichloride hexahydrates with 18-crown-6 in methanol/acetonitrile (1:3) at 60 °C yields the isostructural complexes (I) (no yields given).
ChemInform Abstract
The reaction of the metal trichloride hexahydrates with 18-crown-6 in methanol/acetonitrile (1:3) at 60 °C yields the isostructural complexes (I) (no yields given). All three crystallize in the space group P212121 with Z=4. The coordinated Cl atom lies above the crownether and the two water molecules lie below. The remaining Cl ions and water molecules are hydrogen-bonded, forming a polymeric network. The Sm analogue studied has an absolute configuration opposite to that for M: Gd and Tb.
