Issue 8, 2002

Syntheses, crystal structures and properties of two novel lanthanide–carboxylate polymeric complexes

Abstract

Two novel lanthanide–carboxylate polymeric complexes containing nine-coordinate lanthanide metal centers, [Nd(H2btec)1/2(btec)1/2(H2O)]n (1), [Gd(Hbtec)]n (2), have been prepared by hydrothermal reaction of NdCl3·6H2O or Gd(NO3)3·6H2O with 1,2,4,5-benzenetetracarboxylic dianhydride. Complex 1 crystallizes in triclinic space group P[1 with combining macron], with a = 6.3822(5), b = 9.3323(7), c = 9.5201(7) Å, α = 88.422(2), β = 74.446(2), γ = 76.647(10)°, V = 531.13(7) Å3 and Z = 2. Complex 2 crystallizes in triclinic space group P[1 with combining macron], with a = 7.2325(7), b = 7.9946(8), c = 8.7833(9) Å, α = 65.4120(10), β = 86.272(2), γ = 84.377(2)°; V = 459.42(8) Å3 and Z = 2. The two complexes have high thermal stability and are stable up to 400 °C. Magnetic susceptibility measurements for 1 and 2 are consistent with the occurrence of antiferromagnetic interactions through carboxylate bridges.

Graphical abstract: Syntheses, crystal structures and properties of two novel lanthanide–carboxylate polymeric complexes

Supplementary files

Article information

Article type
Paper
Submitted
01 Nov 2001
Accepted
04 Feb 2002
First published
19 Mar 2002

J. Chem. Soc., Dalton Trans., 2002, 1847-1851

Syntheses, crystal structures and properties of two novel lanthanide–carboxylate polymeric complexes

D. Sun, R. Cao, Y. Liang, Q. Shi and M. Hong, J. Chem. Soc., Dalton Trans., 2002, 1847 DOI: 10.1039/B109985J

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