title: The supramolecular structure of a cadmium complex with the new functionalized terpyridine ligand 4'-[4-(pyrimidin-5-yl)phenyl]-2,2':6',2''-terpyridine (L1): aqua(L1-κ³N,N',N'')(nitrato-κ²O,O')(nitrato-κO)cadmium(II) dihydrate.
abstract: The monomeric title compound, aqua(nitrato-κ²O,O')(nitrato-κO){4'-[4-(pyrimidin-5-yl)phenyl]-2,2':6',2''-terpyridine-κ³N,N',N''}cadmium(II) dihydrate, [Cd(NO₃)₂(C₂₅H₁₇N₅)(H₂O)]·2H₂O, consists of a seven-coordinated CdII centre bound to the novel 4'-[4-(pyrimidin-5-yl)phenyl]-2,2':6',2''-terpyridine (L1) ligand (behaving as a tridentate chelate), two nitrate anions (as chelating-bidentate and monodentate ligands) and a water O atom. Both chelating groups define the base of a slightly deformed pentagonal bipyramid, while the monocoordinated ligands occupy the apices. The four heterocycles in L1 form a planar skeleton, while the central benzene ring is rotated from this planar geometry by more than 30°, probably because of packing effects. Noncovalent interactions lead to the formation of columnar arrays parallel to [100].
authors.affiliation: Departamento de Ciencias Químicas y Recursos Naturales, Facultad de Ingeniería, Ciencias y Administración, Universidad de La Frontera, Casilla 54-D, Temuco, Chile. juan.granifo@ufrontera.cl
authors.forename: Juan
authors.initials: J
authors.lastname: Granifo
authors.forename: Rubén
authors.initials: R
authors.lastname: Gaviño
authors.forename: Eleonora
authors.initials: E
authors.lastname: Freire
authors.forename: Ricardo
authors.initials: R
authors.lastname: Baggio
keywords: cadmium complexes; crystal structure; hydrogen bonding; supramolecular structure