Open AccessSynthesis, identification, antibacterial, and dyeing applications of complexes of hexadentate (N4O2 donor) Schiff base ligands derived from curcumin with some transition and non–transition metal cations
Author(s) -
Afsar Ali,
Taghreed H. AlNoor
Publication year - 2021
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/1046/1/012005
Subject(s) - chemistry , schiff base , transition metal , medicinal chemistry , molar conductivity , ligand (biochemistry) , stereochemistry , metal , polymer chemistry , nuclear chemistry , organic chemistry , biochemistry , receptor , catalysis
Schiff base ligand (H 2 CANPT) was prepared by two steps: first, by the condensation of curcumin with 4-amino antipyrin produces4,4′-(((1E,3Z,5Z,6E)-1,7-bis(4-hydroxy-3-methoxyphenyl)hepta-1,6-diene-3,5-diylidene)bis(azanylylidene))bis(1,5-dimethyl-2-phenyl-1,2-dihydro-3H-pyrazol-3-one) (CANP). Second, by the condensation of (CANP) with L-tyrosine produces2,2′-(((3Z,3′Z)-(((1E,3Z,5Z,6E)-1,7-bis(4-hydroxy-3-methoxyphenyl)hepta 1,6-diene-3,5-diylidene)bis(azanylylidene))bis(1,5-dimethyl-2-phenyl-1,2-dihydro-3-H-pyra-zole-4-yl-3-ylidene))bis(azanylylidene))bis(3-(4-hydroxyphenyl)propanoic acid) (H 2 CANPT). The resulted Schiff comported as hexadentate coordinated with (N 4 O 2 ) atoms, then it was treated with some transition and non-transaction metal ions, such as (Mn(II), Fe(III), Co(II), Ni(II), Cu(II), Cd(II), Hg(II) chloride and Ag(I) as nitrate to synthesize complexes. All the prepared compounds were identified using FT-IR, UV-visible, elemental analysis (C.H.N), 1 H and 13 C-NMR, molar conductivity and magnetic susceptibility. Schiff base and its complexes were tested against two types of bacteria ( Staphylococcus aureus and Escherichia Coli ). Besides, they were tested as dyes on cotton fibres.