Nishat, Metal-based Schiff base
polymers: preparation, spectral, thermal and their in vitro biological investigation, Designed Monomers and Polymers, 17, 217 (2014).
The Schiff base
ligand and its metal (III) complexes showed antibacterial activity against E.
compounds are able to form stable complexes with several transition metal ions .
Physical characteristics and elemental analysis of Schiff base
1H NMR spectra of the products showed doublet signals at 5.68 and 5.71 ppm (P-12, in CD[Cl.sub.3] and in DMSO-[d.sub.6], respectively) and 5.69 ppm (P-13, in CD[Cl.sub.3]) with [sup.2]JPH about 23 Hz which can be assigned to the CHP proton from their units formed by addition reaction between the polymeric H-phosphonate and the Schiff base
. The NH proton signal is masked in the spectra taken in CD[Cl.sub.3] solution.
In Figure S2, a very strong band is below 400 nm for Schiff base
(303 nm) and at 344 nm for complexes, due to ligand-centered [pi] [right arrow] [[pi].sup.*]/[pi] [right arrow] [[pi].sup.*] (most probably from phenolate oxygen donor atom) transitions (LLCT).
Recently, Al-Shemary and Zaidan  reported the successful synthesis and characterization of a new tetradented Schiff base
ligand known as 2,2'(1E,1'E)-(ethane-1,2-diylbis (azan-1-yl-1-ylidene))bis(phenylmethan-1-yl-1-ylidene)dibenzoic acid (EDA2Bb) and its [Cu.sup.II], [Ni.sup.II], [Mn.sup.II], [Co.sup.II], and [Hg.sup.II] complexes.
Mass spectrum of the furan Schiff base
ligand (H-MFMAQ) (Figure 1(a)) has final peak at 268 amu corresponding to the furan Schiff base
ligand moiety [[C.sub.15][H.sub.12][N.sub.2][O.sub.3]] (atomic mass 268 amu) (Scheme 2).
Cobalt complexes with Schiff bases
have received considerable attention in the fields of coordination chemistry and biological chemistry (6).
Salicylaldehyde-hydrazine hydrate Schiff base
(la) showed the better inhibition to the growth of S.
In addition, the antibacterial activities of both hydrazone Schiff base
L1 and Zn(II) complex have also been examined.
Lei, "Surface-confined synthesis of one-dimensional schiff base
polymers investigated by scanning tunneling microscopy," Journal of Physical Chemistry C, vol.