LANTHANIDE ION COMPLEXES OF CALIXARENES .8. BIMETALLIC LANTHANIDE COMPLEXES OF PARA-TERT-BUTYLCALIX[8]ARENE FROM DIMETHYLFORMAMIDE SOLUTIONS

被引:47
作者
HARROWFIELD, JM
OGDEN, MI
WHITE, AH
机构
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D O I
10.1071/CH9911249
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Reaction of lanthanide(III) ion p-toluenesulfonates with a warm p-t-butylcalix[8]arene (L) solution in dmf/triethylamine (dmf denotes N,N-dimethylformamide), yields crystalline 2:1 Ln/ligand adducts, as dmf solvates: [Ln2(L-6H)(dmf)5].xdmf, Ln = La, Pr, Lu and Eu (previously recorded; 2 phases) have been characterized by single-crystal X-ray studies; all phases are triclinic but only the praseodymium and alpha-form of the europium derivative are isostructural: Ln = La, Pr, alpha-Eu have Z = 2 formula units, while Ln = beta-Eu, Lu have Z = 4. In all cases, the stoichiometry of the complex molecule is the same and the same as that of the dmso adducts recorded in the previous paper, with similar ligand dispositions.
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页码:1249 / 1262
页数:14
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