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  • Title: Vibrational spectra of palladium 5-nitrofuryl thiosemicarbazone complexes: experimental and theoretical study.
    Author: Gambino D, Otero L, Vieites M, Boiani M, González M, Baran EJ, Cerecetto H.
    Journal: Spectrochim Acta A Mol Biomol Spectrosc; 2007 Oct; 68(2):341-8. PubMed ID: 17321785.
    Abstract:
    The vibrational spectroscopic behavior of a series of 16 palladium(II) complexes with 8 bioactive nitrofuran containing thiosemicarbazones as ligands has been studied in the solid state. The IR and Raman spectra of these complexes and the free nitrofuran thiosemicarbazone ligands were recorded and analyzed. Experimental spectra were satisfactorily described by density functional theory (DFT) calculations. The combination of experimental and theoretical methods allowed us to perform the characterization of the main vibrations that show the mode of coordination of the thiosemicarbazone moiety to palladium even though these vibration bands are located in spectral regions showing a complicated pattern due to the presence of vibrations of the nitrofuran moiety and combination modes involving furan vibrations. A characteristic vibrational spectroscopic pattern has been defined for Pd(II) 5-nitrofuryl thiosemicarbazone complexes. This systematic knowledge may be useful for the analysis of the spectroscopic behavior of other coordination compounds holding the 5-nitrofuran thiosemicarbazone moiety.
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