Mono and binuclear Ag(I), Cu(II), Zn(II) and Hg(II) complexes of a new azo-azomethine as ligand: Synthesis, potentiometric, spectral and thermal studies
作者:Ibrahim S. Ahmed、Moustafa M. Moustafa、Mohamed. M. Abd El Aziz
DOI:10.1016/j.saa.2011.01.022
日期:2011.5
UV-Vis-spectra. The proton dissociation constants of the ligands and the stability constant of their complexes have been determined potentiometrically in 40% (v/v) alcohol-water medium as well as the stoichiometry of complexes were determined conductometrically. The data reveal that the stoichiometries for all complexes were prepared in molar ratios (1:1) and (1:2) (M:L). The electrolytic and nonelectrolytic
Nano-Azo Ligand and Its Superhydrophobic Complexes: Synthesis, Characterization, DFT, Contact Angle, Molecular Docking, and Antimicrobial Studies
作者:Gehad G. Mohamed、Walaa H. Mahmoud、Ahmed M. Refaat
DOI:10.1155/2020/6382037
日期:2020.10.16
measurements. The IRspectra revealed the binding of the azo ligand to the metal ions via two azo nitrogen atoms and protonated carboxylate O in a neutral tetradentate manner. Both IR and 1H NMR spectra documented the involvement of the carboxylate group without proton displacement. The thermal studies pointed out that the complexes had higher thermal stability comparable with that of the free ligand. SEM images
Thermal decomposition of carbonates, carboxylates, oxalates, acetates, formates, and hydroxides
作者:Jacob Mu、D.D. Perlmutter
DOI:10.1016/0040-6031(81)80175-x
日期:1981.11
Abstract A study is reported of the controlled decomposition of various metal carbonates, carboxylates, oxalates, acetates, formates and hydroxides and their common hydrates, carried out in a thermogravimetric analyzer, a differential scanning calorimeter, and a differential thermal analyzer. Various sample sizes, heating rates, and ambient atmospheres were used to demonstrate their influence on the
Developing Intense Blue and Magenta Colors in α-LiZnBO<sub>3</sub>: The Role of 3d-Metal Substitution and Coordination
作者:S. Tamilarasan、M. L. P. Reddy、S. Natarajan、J. Gopalakrishnan
DOI:10.1002/asia.201601124
日期:2016.11.22
We describe the synthesis, crystal structures, and optical absorption spectra/colors of 3d‐transition‐metal‐substituted α‐LiZnBO3 derivatives: α‐LiZn1−xMIIxBO3 (MII=CoII (0
我们描述的合成,晶体结构和光学吸收光谱/ 3d过渡金属取代的α-LiZnBO颜色3个衍生物:α-LiZn 1- X中号II X BO 3(M II = CO II(0 < X < 0.50),镍II(0 < X ≤0.05),铜II(0 < X ≤0.10))和α-栗1+ X锌1-2 X中号III X BO 3(M III =锰III(0 < X ≤0.10),Fe III(0