UV-visible spectroscopic study of the salicyladehyde benzoylhydrazone and its cobalt complexes

作者：Lu, Yi-Heng; Lu, Yu-Wei^*; Wu, Cheng-Li; Shao, Qun; Chen, Xiao-Ling; Bimbong, Rosa Ngo Biboum

来源：Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy , 2006, 65(3-4): 695-701.

DOI：10.1016/j.saa.2005.12.032

• Gaussian deconvolution
• UV-vis spectra
• hydrogen bond
• ligand
• salicyladehyde benzoylhydrazone

Salicyladehyde benzoylhydrazone (SBH) has three groups suitable for forming coordination bond with transition metal. The UV-vis absorption spectra of SBH and its Co(II) complexes in various media were studied by using the deconvolution method. It is found that the structure of complex in solution is different from those in solid crystals. The nature of complexes in solution depends on acidity of the phenolic proton of SBH and on the medium. In neutral or slightly acid medium, the SBH is a non-charged bidentate ligand. And the "free" hydroxyl group on the SBH molecule makes it possible to form hydrogen bonds in solution. In basic medium, the SBH is a mono, negatively charged tridentates ligand.

• 出版日期2006-11
• 单位安徽理工大学