Synthesis and characterization of water-soluble zinc(II) Schiff-base complexes derived from amino acids and 3-formyl-4-hydroxybenzyl-triphenylphosphonium chloride

One-step formation of three-dimensional macroporous bacterial sponges as a novel approach for the preparation of bioreactors for bioremediation and green treatment of water

“…The proton of Schiff's base in the 1 H-NMR spectrum of PEI-al appeared at 8.36 ppm. [24][25][26] PVA-al has two additional signals at 7.7 and 6.3 ppm which are attributed to the presence of protons of the cyclic acetal form and multiples at 2.23 ppm related to glutaraldehyde moieties (CH 2 (4H)) and the singlets at 2.1 ppm attributed to an ethyl groups (CH 3 ) of PVA ( Fig. S1c †).…”

Zinc, copper and nickel derivatives of 2-[2-bromoethyliminomethyl]phenol as topoisomerase inhibitors exhibiting anti-proliferative and anti-metastatic properties

“…The coordination of azomethine nitrogen to metal ion was supported by upeld shiing of CH]N peak from 8.58 ppm in L1 to 8.30 ppm in the spectrum of complex 1. 23,24 In addition, the disappearance of the phenolic proton in the spectrum of complex 1 suggested the complexation of the ligand to metal ion via phenolate oxygen.…”