Página Inicial CNEA Laboratorio TANDAR Página Inicial TANDAR Historia del acelerador TANDAR Web interno Web mail
Inicio » Actividades I+D > Publicaciones 2011 > Di-μ-but-2-enoato-bis[diaquabis(but-2-en...
artículo con referato
"Di-μ-but-2-enoato-bis[diaquabis(but-2-enoato)neodymium(III)] 2,6-diaminopurine disolvate"
A.T. Atria, A. Astete, M.T. Garland and R. Baggio
Acta Cryst. E 67(9) (2011) m1191-m1192
The title Nd complex [Nd2(C4H5O2)6(H2O)4]·2C5H6N6 is isotypic with two previously reported Dy and Ho isologues. It is composed of [Nd(crot)3(H2O)2]2 dimers [crot(onate) = but-2-enoate = C4H5O2], built up around symmetry centres and completed by 2,6-diaminepurine molecules acting as solvates. The neodymium cations are coordinated by three chelating crotonato units and two water molecules. One of the chelating carboxylates acts also in a bridging mode, sharing one oxygen with both cations, and the final result is a pair of NdO9 tricapped prismatic polyhedra linked to each other through a central (Nd-O)2 loop. A most attractive aspect of the structures resides in the existence of a complex intermolecular hydrogen-bonding interaction scheme involving two sets of tightly interlinked, non-intersecting one-dimensional structures, one of them formed by the [Nd(crot)3(H2O)2]2 dimers running along [100] and the second by the solvate molecules evolving along [010].
Av. Gral Paz y Constituyentes, San Martín, Pcia. de Buenos Aires, Argentina
Tel: (54-11) 6772-7007 - Fax: (54-11) 6772-7121