Lanthanide(III) complexes of six-nitrogen-donor macrocyclic ligands with benzyl-type peripheral substituents, and crystal structure of [La(NO3)2(H2O)(C36H38N6)](NO3)(H2O)

Autor: Kristine M. Samaria, Adedoyı́n M. Adeyga, Gabriella Bombieri, Lidia M. Vallarino, Kathleen K. Fonda, Franco Benetollo, William A. Gootee
Rok vydání: 2002
Předmět:
Zdroj: Polyhedron. 21:425-433
ISSN: 0277-5387
DOI: 10.1016/s0277-5387(01)01008-7
Popis: Lanthanide(III) complexes of six-nitrogen-donor macrocyclic ligands carrying a benzyl-type group, CH2C6H4X (X=H, OH, or NH2), at each di-imine side chain were synthesized by the metal-templated, cyclic Schiff-base condensation of 2,6-diacetylpyridine with substituted S- or R,S-1,2-diaminopropanes. The complexes were obtained as mixtures of constitutional isomers and stereoisomers, which were identified by 1H NMR spectra and separated by fractional crystallization. The molecular structure of the 11-coordinate complex [La(NO3)2(H2O)(C36H38N6)](NO3)(H2O) was established by X-ray crystallography.
Databáze: OpenAIRE