Preparation,crystal structures and NMR characterization of substituted-benzoate complexes Nickel(II)-N3-macrocycles |
| |
| Authors: | M. Dolores Santana,Gabriel Garcí a,Gregorio Ló pez,Abel Lozano,Consuelo Vicente,Luí s Garcí a,José Pé rez |
| |
| Affiliation: | 1. Departamento de Química Inorgánica, Universidad de Murcia, 30071 Murcia, Spain;2. Departamento de Ingeniería Minera, Geológica y Cartográfica, Área de Química Inorgánica, Universidad Politécnica de Cartagena, E-30203 Cartagena, Spain |
| |
| Abstract: | Substituted-benzoate complexes of nickel(II) of the types bidentate [Ni(mcN3)(Bz)](PF6) and monodentate [Ni(mcN3)(Bz)(H2O)](PF6) have been prepared by acid-base reaction between the hydroxo complexes [Ni(mcN3)(μ-OH)]2(PF6)2 (mcN3 = 2,4,4-trimethyl-1,5,9-triazacyclododec-1-ene (Me3-mcN3) or its 9-methyl derivative (Me4-mcN3)) and the corresponding benzoic acid. The paramagnetic nickel(II) complexes have been characterized in solution by NMR spectroscopy. The influence of the substituents on the hyperfine shift patterns for substituted-benzoate complexes of nickel(II) has been studied. The substituent effects upon the coordination mode of substituted benzoates have been established by X-ray diffraction. |
| |
| Keywords: | Nickel Carboxylate ligands Macrocyclic ligands Substituent effects Solid-state structures NMR |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
