Results 61 to 70 of about 95,990 (357)

Synthesis, Spectroscopic Characterization, and In Vitro Antimicrobial Studies of Pyridine-2-Carboxylic Acid N′-(4-Chloro-Benzoyl)-Hydrazide and Its Co(II), Ni(II), and Cu(II) Complexes

Bioinorganic Chemistry and Applications, 2012
N-substituted pyridine hydrazide (pyridine-2-carbonyl chloride and 4-chloro-benzoic acid hydrazide) undergoes hydrazide formation of the iminic carbon nitrogen double bond through its reaction with cobalt(II), nickel(II), and copper(II) metal salts in ...
Jagvir Singh, Prashant Singh
doaj   +1 more source

Synthesis, crystal structure and excellent photoluminescence properties of copper (II) and cobalt (II) complexes with Bis(1[(4-butylphenyl)imino]methyl naphthalen-2-ol) Schiff base

Journal of Science: Advanced Materials and Devices, 2018
Copper (II) and Cobalt (II) metal complexes (4a- and 4b-complexes) using Schiff base ligand 1-[(4-butylphenyl)imino]methyl naphthalen-2-ol (3) have been synthesized.
V.B. Nagaveni, K.M. Mahadevan, G.R. Vijayakumar, H. Nagabhushana, S. Naveen, N.K. Lokanath   +5 more
doaj   +1 more source

Cobalt(II) complexes with azole-pyridine type ligands for non-aqueous redox-flow batteries:tunable electrochemistry via structural modification [PDF]

, 2017
A single species redox flow battery employing a new class of cobalt(II) complexes with ‘tunable’ tridentate azole-pyridine type ligands is reported. Four structures were synthesised and their electrochemical, physical and battery characteristics were ...
Armstrong, Craig G., Toghill, Kathryn E.
core   +1 more source

Photoswitching Conduction in Framework Materials

Advanced Functional Materials, EarlyView.
This mini‐review summarizes recent advances in state‐of‐the‐art proton and electron conduction in framework materials that can be remotely and reversibly switched on and off by light. It discusses the various photoswitching conduction mechanisms and the strategies employed to enhance photoswitched conductivity.
Helmy Pacheco Hernandez, Stefan Hecht, Wolfgang Wenzel, Lars Heinke, Mariana Kozlowska   +4 more
wiley   +1 more source

Comparative electrochemical study of some cobalt(III) and cobalt(II) complexes with azamacrocycles and b-diketonato ligands [PDF]

Journal of the Serbian Chemical Society, 2003
The electrochemical properties of eight mixed-ligand cobalt(III) and cobalt(II) complexes of the general formulas [CoIII(Rac)cyclam](ClO4)2 (1)–(4) and [Co2II(Rac)tpmc](ClO4)3 (5)–(8) were studied.
K. BABIC-SAMARDZIJA, S. P. SOVILJ, V. M. JOVANOVIC   +2 more
doaj  

Spectrophotometric Determination of Iron(II) and Cobalt(II) by Direct, Derivative, and Simultaneous Methods Using 2-Hydroxy-1-Naphthaldehyde-p-Hydroxybenzoichydrazone

International Journal of Analytical Chemistry, 2012
Optimized and validated spectrophotometric methods have been proposed for the determination of iron and cobalt individually and simultaneously. 2-hydroxy-1-naphthaldehyde-p-hydroxybenzoichydrazone (HNAHBH) reacts with iron(II) and cobalt(II) to form ...
V. S. Anusuya Devi, V. Krishna Reddy
doaj   +1 more source

Synthesis, Spectroscopic and Computational Studies of Some Metals Chelates with Chromene-2-one and Pyrazine-Based Ligands

Indonesian Journal of Chemistry, 2019
The present paper deals with the synthesis of cobalt(II), nickel(II), copper(II) and cadmium(II) complexes with two bidentate ligands, L1 (3-(quinoxaline-2-yl)-coumarin) and L2 (2-methylene-2H-chromene-3-(methyl carbonimidic)thioanhydride). The L1 ligand
Taghreed Mohy Al-Deen Musa, Mahmoud Najim Abid Aljibouri, Bayader Fadhil Abbas, Nahid Hasani   +3 more
doaj   +1 more source

GeAl2‐2xFe2xO3(OH)4 Nanotubes: New Electrocatalyst for Oxygen Evolution Reaction

Advanced Functional Materials, EarlyView.
Fe‐doped imogolite nanotubes are synthesized via a one‐step hydrothermal method with varying Fe substitution ratios x. Structural and spectroscopic analyses confirm homogeneous Fe incorporation while preserving tubular shape. Optimal doping at x = 0.05 enhances optical absorption, narrows band gap, reduces charge transfer resistance, and significantly ...
Yassine Naciri, Jian Li, Wahid Ullah, Fabien Baron, Franck Bourdelle, Stéphan Rouzière, Claire Goldmann, Erik Elkaim, Thomas Bizien, Rachid Belkhou, Delphine Vantelon, Mohamed Nawfal Ghazzal, Erwan Paineau   +12 more
wiley   +1 more source

New cobalt(I) complexes derived from dicarbonyltricyanocobaltate(I) [PDF]

, 1971
The preparation and characterization of several series of mixed ligand cobalt(I) complexes of the types [Co(CN)_2(CO)_2(PR_3)]–, [Co(CN)_2(CO)(PR_3)_2]–, and [Co(CN)(CO)_2(PR_3)_2], prepared by the reactions of tertiary phosphines (PR_3) with [Co(CN)_3 ...
Bercaw, John, Guastalla, Giovanni, Halpern, Jack   +2 more
core   +1 more source

Tailoring the Properties of Functional Materials With N‐Oxides

Advanced Functional Materials, EarlyView.
The properties of materials bearing N‐oxide groups are often dominated by the polar N+─O− bond. It provides hydrophilicity, selective ion‐binding, electric conductivity, or antifouling properties. Many of the underlying mechanisms have only recently been discovered, and the interest in N‐oxide materials is rapidly growing.
Timo Friedrich, Michelle Kobus, Shirin Mesgarha, Erica Moretto, Laurens Grosche, Wolfgang Maison   +5 more
wiley   +1 more source