artículo con referato
"Three isotypic polymeric complexes with rare earth cations, but-2-enoate anions and 4,4′-(ethane-1,2-diyl)dipyridine and 4,4′-(ethene-1,2-diyl)dipyridine bridging ligands"
A.M. Atria, M.T. Garland and R. Baggio
Acta Cryst. C 71(4) (2015) 301-305
Abstract
Three isotypic rare earth complexes,
catena-poly[[aquabis(but-2-enoato-
κ2O,
O′)yttrium(III)]-bis(
μ-but-2-enoato)-
κ3O,
O′:
O;
κ3O:
O,
O′-[aquabis(but-2-enoato-
κ2O,
O′)yttrium(III)]-
μ-4,4′-(ethane-1,2-diyl)dipyridine-
κ2N:
N′], [Y
2(C
4H
5O
2)
6(C
12H
12N
2)(H
2O)
2], the gadolinium(III) analogue, [Gd
2(C
4H
5O
2)
6(C
12H
12N
2)(H
2O)
2], and the gadolinium(III) analogue with a 4,4′-(ethene-1,2-diyl)dipyridine bridging ligand, [Gd
2(C
4H
5O
2)
6(C
12H
10N
2)(H
2O)
2], are one-dimensional coordination polymers made up of centrosymmetric dinuclear [
M(but-2-enoato)
3(H
2O)]
2 units (
M = rare earth), further bridged by centrosymmetric 4,4′-(ethane-1,2-diyl)dipyridine or 4,4′-(ethene-1,2-diyl)dipyridine spacers into sets of chains parallel to the [20
] direction. There are intra-chain and inter-chain hydrogen bonds in the structures, the former providing cohesion of the linear arrays and the latter promoting the formation of broad planes parallel to (010).
DEPARTAMENTO FISICA DE LA MATERIA CONDENSADA
