Issue 7, 1989
From the journal:

Journal of the Chemical Society, Dalton Transactions

Heteroleptic poly(pyrazolyl)borate derivatives of the lanthanide ions. The synthesis of acetylacetonate complexes and the molecular structures of [Ln{HB(C3N2H3)3)2(MeC(O)CHC(O)Me}](Ln = Ce or Yb)

Michael A. J. Moss,   Christopher J. Jones  and  Anthony J. Edwards  

Abstract

The air- and moisture-stable complexes [Ln{HB(C3N2H3)3}2{MeC(O)CHC(O)Me}](Ln = La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Yb, Tm, Lu, or Y) have been prepared and characterised. Evidence was found that intramolecular ligand reorganisation processes were occurring on the n.m.r. time-scale down to –80 °C. The molecular structures of the compounds with Ln = Ce and Yb have been determined. Polytopal analysis of these structures reveals that a substantial distortion of the near bicapped trigonal prismatic co-ordination geometry, found for the cerium complex, towards square antiprismatic is necessary to allow the ligand set to accommodate the smaller Yb3+ ion.

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Article information

DOI
https://doi.org/10.1039/DT9890001393
Article type
Paper

J. Chem. Soc., Dalton Trans., 1989, 1393-1400

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Heteroleptic poly(pyrazolyl)borate derivatives of the lanthanide ions. The synthesis of acetylacetonate complexes and the molecular structures of [Ln{HB(C3N2H3)3)2(MeC(O)CHC(O)Me}](Ln = Ce or Yb)

M. A. J. Moss, C. J. Jones and A. J. Edwards, J. Chem. Soc., Dalton Trans., 1989, 1393 DOI: 10.1039/DT9890001393

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