期刊
RSC ADVANCES
卷 10, 期 39, 页码 23372-23378出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/d0ra03642k
关键词
-
资金
- National Natural Science Foundation of China [21471017]
Acylhydrazone Schiff bases are rich in N and O atoms to coordinate with metal ions to form multidentate complexes. In this study, a novel diacylhydrazone Schiff base (N ' E-1,N ' E-4)-N '(1),N '(4)-bis(2-hydroxy-5-nitrobenzylidene)succinohydrazide (H4L) was synthesized from the condensation of nitrosalicylaldehyde and succinic dihydrazide. The interactions ofH(4)Lwith common monovalent, divalent and trivalent metal ions were investigated by ultraviolet spectroscopy and fluorescence spectroscopy. The results showed thatH(4)Lhad no obvious effect on the monovalent metal ions (Li+, Na+, K+), but reacted with most divalent and trivalent metal ions, and showed single selectivity in the fluorescence recognition of Fe(3+)ions. More importantly, three kinds of binuclear molecular structures, [Zn-2(H2L)(2)]center dot 5DMF (Zn-L), [Cd-2(H2L)(2)]center dot DMF center dot H2O (Cd-L) and [Eu-2(H2L)(3)]center dot 6DMSO (Eu-L), have been studied to further illustrate the interaction mode of diacylhydrazone Schiff base and metal ions. In addition, the optical properties of these crystallized complexes have been studied in DMF solution.
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