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Complexation of lanthanum(III) nitrate by N,N′,N,N′-tetraethylmalonamide: Crystal structure of three polymorphic forms |
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| Authors: | Pierre Thu ry, Martine Nierlich, Marie-Christine Charbonnel, Christophe Den Auwer,Jean-Pierre Dognon |
| Affiliation: | a CEA/Saclay, DSM/DRECAM/SCM (CNRS URA 331), Bât. 125, 91191 Gif-sur-Yvette, France b CEA/Marcoule, DCC/DRRV/SEMP, B.P. 171, 30207 Bagnols-sur-Cèze, France |
| Abstract: | A monoclinic form of the complex between lanthanum(III) nitrate and tetraethylmalonamide (TEMA), La(NO3)3(TEMA)2, 1, differing from the triclinic form 2 previously reported, is described. 1 undergoes an evolution with time which leads to the form 2, which in its turn undergoes a temperature-driven phase transition previously unreported, leading to the formation of 3. |
| Keywords: | Lanthanum(III) Tetraethylmalonamide Crystal structure Phase transition Ion extraction Nuclear reprocessing |
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