A. Arancibia et al., Electronic effects of donor and acceptor substituents on dipyrido(3,2-a : 2 ',3 '-c)phenazine (dppz), J COORD CH, 54(3-4), 2001, pp. 323-336
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) complex
es were synthesized and characterized by conventional techniques. The influ
ence of the donor and acceptor properties of the R substituents on the liga
nd properties were studied by spectroscopic techniques such as H-1-NMR and
UV-Vis. Theoretical calculations were also achieved, mainly to interpret an
d understand the experimental spectra.