Sm(III) and nd(iii) cyanoacetates: synthesis and structure

Lazaresku Ana; Ferbinteanu  Marilena; Shova Sergiu; Turta Constantin

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LAZARESKU, Ana, FERBINTEANU, Marilena, SHOVA, Sergiu, TURTA, Constantin. Sm(III) and nd(iii) cyanoacetates: synthesis and structure. In: Чугаевская конференция по координационной химии, 20-24 iunie 2005, Chişinău. Chișinău, Republica Moldova: Tipografia Academiei de Ştiinţe a Moldovei, 2005, Ed.22, p. 243.

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Чугаевская конференция по координационной химии
Ed.22, 2005

Conferința "Чугаевская конференция по координационной химии"
Chişinău, Moldova, 20-24 iunie 2005

Sm(III) and nd(iii) cyanoacetates: synthesis and structure

Pag. 243-243

Lazaresku Ana¹, Ferbinteanu Marilena², Shova Sergiu³, Turta Constantin¹

¹ Institute of Chemistry of the Academy of Sciences of Moldova,
² University of Bucharest,
³ Moldova State University

Disponibil în IBN: 28 mai 2020

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Teza

The study of rare earth carboxylates is an area of continuous interest due
to peculiar physicochemical properties of the various 4f ions and to their use as
essential components in the production of new optical and magnetic materials
[1]. Herein we present the synthesis and single-crystal X-ray study of two
polymeric SmIII and NdIII cyanoacetates with the following composition:
{Sm(CNCH2COO)3(CNCH2COOH)(H2O)5}n (1),
{[Nd(CNCH2COO)3(H2O)2]⋅H2O} (2).
Compounds 1 and 2 were obtained by the reaction of lanthanide salts with
cyanoacetic acid in aqueous solution. Both crystals are built from the coordination
polymeric chains, sustained by polydentate-bridge carboxylate ligands in a large
variety of structural functions. Crystal 1 are monoclinic and crystallizes in P21/c
sp. gr.: a = 8.840(5) Å, b =18.309 (10) Å, c = 12.03(6) Å, β = 94.799(5)o; crystal
2 is triclinic, sp. gr. P 1 with a = 9.020(2)Å, b =9.166(2) Å, c = 9.746(2) Å, β =
83.69(3)o.

References
1. J.P.Costes, J.M.Clemente-Juan, F.Dahan and F.Nicodeme, Dalton Trans.,
2003, 1272-1275, and references therein.