title: Experimental and theoretical study of lanthanide complexes based on linear and macrocyclic polyaminopolycarboxylic acids containing pyrazolylethyl arms.
abstract: We report the synthesis of two novel Gd(III)-complexes derived from linear and macrocyclic polyaminopolycarboxylic acids 1 and 2, which contain a 3,5- dimethylpyrazolyl-ethyl arm, and a study of their relaxivity properties. The relationships between the experimental and theoretical results have provided interesting information about the kinetic and thermodynamic stability of these complexes.
authors.affiliation: Laboratorio de Síntesis Orgánica e Imagen Molecular por Resonancia Magnética, Instituto Universitario de Investigación, UNED, Facultad de Ciencias, UNED, Paseo Senda del Rey 9, E-28040 Madrid, Spain.
authors.forename: Elena
authors.initials: E
authors.lastname: Pérez-Mayoral
authors.forename: Elena
authors.initials: E
authors.lastname: Soriano
authors.forename: Sebastián
authors.initials: S
authors.lastname: Cerdán
authors.forename: Paloma
authors.initials: P
authors.lastname: Ballesteros
mesh_terms: D002264:Carboxylic Acids / Q000737:chemistry*; D028581:Lanthanoid Series Elements / Q000737:chemistry*; D011720:Pyrazoles / Q000737:chemistry*; D021241:Spectrometry, Mass, Electrospray Ionization
chemical_list: D002264:Carboxylic Acids; D028581:Lanthanoid Series Elements; D011720:Pyrazoles