Electronic effects of donor and acceptor substituents on dipyrido(3,2-a : 2 ',3 '-c)phenazine (dppz)
Electronic effects of donor and acceptor substituents on dipyrido(3,2-a : 2 ',3 '-c)phenazine (dppz)
Authors
Arancibia, A
Concepcion, J
Daire, N
Leiva, G
Leiva, AM
Loeb, B
Del Rio, R
Diaz, R
Francois, A
Saldivia, M
Concepcion, J
Daire, N
Leiva, G
Leiva, AM
Loeb, B
Del Rio, R
Diaz, R
Francois, A
Saldivia, M
Authors
Date
Datos de publicaciĆ³n:
JOURNAL OF COORDINATION CHEMISTRY,Vol.54,323-336,2001
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Abstract
The chelate ligands 11-R-dipyrido[3,2-a:2,3'-c]phenazine, dppz-R (R = NH2, CH3, H, COOH, NO2) and the Re(dppz-R)(CO)(3)Cl (R = NH2, COOH, NO2) complexes were synthesized and characterized by conventional techniques. The influence of the donor and acceptor properties of the R substituents on the ligand properties were studied by spectroscopic techniques such as H-1-NMR and UV-Vis. Theoretical calculations were also achieved, mainly to interpret and understand the experimental spectra.