Origin of chirality in charge transfer bands of CuII acidatesReport as inadecuate




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Complexes of CuII with L-aminoacids have positive charge transfer bands in their CD spectra at ca.230 nm and negative at ca. 270 nm. Examination of complexes with L-1,2-diamino propane shows that the positive band is due to charge transfer from nitrogen and the negative from oxygen to copper. This sign difference is consistent with a theoretical model. The effects of added nonchiral ligands on the CD spectra in the charge transfer region are analyzed.



Author: Ibarra, Carmen; - Rodríguez, M.; - Urbina, A.; - Bunel Torrealba, Sergio; -

Source: http://repositorio.uchile.cl/



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