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Schiff base functionalized magnetic nano-cores for the fast uptake of copper ions have been developed by one pot synthesis.

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Three novel atrane-like pentacoordinate silicon and hexa-and mixed penta-and hexacoordinate tin compounds containing [4.4.3.0]tridecane cages have been synthesized. In the present work, the bis-phenol amine tetradentate ligand, N,N-bis(2-hydroxy-3,5-dimethylbenzyl)-2-aminoethanol (H 3 L), was treated with phenyltrichlorosilane, butyltrichlorostannane and phenyltrichlorostannane to give the mononuclear pseudosilatrane 1, dinuclear pseudo-stannatrane 2 and tetranuclear pseudo-stannatrane 3, respectively. These compounds were characterized by spectroscopic techniques ( 1 H,

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Diazo‐azomethine coated silica sorbent for the adsorption of Pb2+ ions has been fabricated. The sorbent was obtained by one‐pot synthesis of silica nanoparticles in the presence of diazo‐azomethine molecules possessing silatranyl side chains for grafting via covalent bond formation. The functionalized silica nanoparticles exhibited characteristic physicochemical properties of diazo‐azomethine scaffolds as determined using Fourier transform infrared spectroscopy, scanning and transmission electron microscopies and thermogravimetric analysis. Various adsorption parameters such as pH, weight of adsorbent, time taken for equilibration and recovery of lead ions were optimized using a batch method. The sorbent showed high adsorption capacity for lead ions of 460.4 mg g−1 at pH = 4. The effect of various competing ions on the adsorption of lead ions was studied and interference was removed by using a masking agent. The sorbent can be regenerated and reused, and is compatible for the adsorption of Pb2+ ions from green leafy vegetables. Copyright © 2016 John Wiley & Sons, Ltd.

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