Synthesis and Characterization of Phosphonate Ester/Phosphonic Acid Grafted Styrene−Divinylbenzene Copolymer Microbeads and Their Utility in Adsorption of Divalent Metal Ions in Aqueous Solutions

2008 ◽  
Vol 47 (6) ◽  
pp. 2010-2017 ◽  
Author(s):  
Adriana Popa ◽  
Corneliu-Mircea Davidescu ◽  
Petru Negrea ◽  
Gheorghe Ilia ◽  
Antonis Katsaros ◽  
...  
Keyword(s):  
Aqueous Solutions ◽  
Metal Ions ◽  
Phosphonic Acid ◽  
Divalent Metal ◽  
Synthesis And Characterization ◽  
Divalent Metal Ions ◽  
Styrene Divinylbenzene

Synthesis and characterization of bis(imino)pyridine complexes of divalent Mg and Zn

2016 ◽  
Vol 45 (14) ◽  
pp. 5989-5998 ◽  
Author(s):  
Thomas W. Myers ◽  
Tobias J. Sherbow ◽  
James C. Fettinger ◽  
Louise A. Berben
Keyword(s):  
Electronic Structure ◽  
Metal Ions ◽  
Torsion Angle ◽  
Divalent Metal ◽  
Synthesis And Characterization ◽  
Divalent Metal Ions ◽  
Structural Comparison ◽  
Bond Lengths ◽  
Pyridine Complexes

The synthesis and electronic structure of bis(imino)pyridine (I2P) complexes of the divalent metal ions, Zn(ii) and Mg(ii) are reported, and a correlation between the ligand Cim–Cpy bond lengths with the ligand torsion angle is described. Structural comparison with a new complex of Al(iii) and previously reported Al(iii) complexes is included.

scholarly journals Synthesis and characterization of ligands derived 2-hydroxy-1- naphthaldehyde and their complexes with divalent metal ions (Mn+2, Fe+2, Ni +2)

2018 ◽  
Vol 16 (37) ◽  
pp. 79-87
Author(s):  
Shahinaz A. Hamad Al-Dabbagh
Keyword(s):  
Metal Ions ◽  
Condensation Reaction ◽  
Divalent Metal ◽  
Octahedral Geometry ◽  
Synthesis And Characterization ◽  
Divalent Metal Ions ◽  
Schiff Base Ligands ◽  
Tetrahedral Geometry ◽  
Ft Ir

In this work, Schiff base ligands L1: N, N-bis (2-hydroxy-1-naphthaldehyde) hydrazine, L2: N, N-bis (salicylidene) hydrazine, and L3:N –salicylidene- hydrazine were synthesized by condensation reaction. The prepared ligands were reacted with specific divalent metal ions such as (Mn2+, Fe2+, Ni2+) to prepare their complexes. The ligands and complexes were characterized by C.H.N, FT-IR, UV-Vis, solubility, melting point and magnetic susceptibility measurements. The results show that the ligands of complexes (Mn2+, Fe2+) have octahedral geometry while the ligands of complexes (Ni2+) have tetrahedral geometry.

scholarly journals Synthesis and Characterization of a NewN"-[(1Z,2E)-2- (Hydroxyimino)-1-phenylpropylidene]-N"'-[(1E)-phenylmethylene]thiocarbonohydrazide and its Complexes with Co(II), Ni(II) and Cu(II)

2010 ◽  
Vol 7 (2) ◽  
pp. 409-418
Author(s):  
Dilip C. Sawant ◽  
A. Venkatchallam ◽  
R. G. Deshmukh
Keyword(s):  
Electrical Conductivity ◽  
Metal Ions ◽  
Metal Complexes ◽  
Magnetic Measurements ◽  
Divalent Metal ◽  
Synthesis And Characterization ◽  
Conductivity Measurements ◽  
Divalent Metal Ions ◽  
First Time

Synthesis and characterization of a newN"-[(1Z,2E)-2- (Hydroxyimino)-1-phenylpropylidene]-N"'-[(1E)-phenylmethylene]thiocarbonohydrazide and its metal complexes with Co(II), Ni(II) and Cu(II) metal ions. The ligand synthesis and characterization is reported for first time. The complexes of divalent metal ions were synthesized in 1:2 molar proportion using ethanol as solvent. The ligands as well as its metal complexes were characterized using various physicochemical techniques such as elemental analysis, spectral and magnetic measurements and electrical conductivity measurements in case of the metal complexes only. The data for the metal complexes reveals that they may be represented by ML2. The metal complexes show interesting features of coordination structure.

Luminescent Ruthenium(II) Bipyridyl−Phosphonic Acid Complexes:  pH Dependent Photophysical Behavior and Quenching with Divalent Metal Ions

2000 ◽  
Vol 39 (1) ◽  
pp. 76-84 ◽  
Author(s):  
Marco Montalti ◽  
Seema Wadhwa ◽  
Won Y. Kim ◽  
Rachael A. Kipp ◽  
Russell H. Schmehl
Keyword(s):  
Metal Ions ◽  
Phosphonic Acid ◽  
Divalent Metal ◽  
Divalent Metal Ions ◽  
Photophysical Behavior ◽  
Ph Dependent

scholarly journals Plasmonic Sensing of Aqueous-Divalent Metal Ions by Biogenic Gold Nanoparticles

2019 ◽  
Vol 2019 ◽  
pp. 1-11 ◽  
Author(s):  
Luisa E. Silva-De Hoyos ◽  
Victor Sánchez-Mendieta ◽  
Alfredo R. Vilchis-Nestor ◽  
Miguel A. Camacho-López ◽  
Jésica Trujillo-Reyes ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Aqueous Solutions ◽  
Metal Ions ◽  
Plasmon Resonance ◽  
Chemical Interaction ◽  
Divalent Metal ◽  
Divalent Metal Ions ◽  
Colloidal Solutions ◽  
Transmission Electron ◽  
Vis Spectroscopy

The chemical interaction between biogenic gold nanoparticles (AuNPs) and several metal (II) ions can be regarded as a practical, twofold, colorimetric, and plasmon resonance sensing method for the recognition of some divalent metal ions in aqueous solutions. The green synthesized AuNPs, using Camellia sinensis as a reducing agent, were characterized by a surface plasmon resonance (SPR) using UV-Vis spectroscopy, infrared spectroscopy, and transmission electron microscopy. The AuNP colloidal solutions obtained have a pink-reddish color with SPRs centered between 529 and 536 nm. AuNPs with spherical, triangular, and hexagonal shapes were found by TEM analyses. Despite their divergent morphologies, these AuNPs can be employed as colorimetric and plasmon resonance sensors for detection of Ca2+, Sr2+, Cu2+, and Zn2+, primarily, in aqueous solutions. Sensibility studies based on molar concentrations were also performed for these metal ions. Furthermore, solid biogenic AuNPs/cellulosic biocomposites were prepared with the aim of developing portable, fast, and dependable colorimetric sensors; nevertheless, these biocomposites resulted to be good adsorbent materials of metal ions.

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