Results 21 to 30 of about 119,324 (295)

Monitoring of nickel(II) in biological samples using 4-(2-hydroxy-phenylethamino)benzene-1,3-diol by extractive differential pulse polarography

Journal of Electrochemical Science and Engineering, 2017
A novel analytical reagent, 4-(2-hydroxyphenylethamino)benzene-1,3-diol was synthesized for determination of nickel(II) in biological samples and plant materials by extractive differential pulse polarography. The analysis of nickel(II) was carried out by
Dasari Rekha, Puthalapattu Reddy Prasad, Neelam Yughandhar Sreedhar   +2 more
doaj   +1 more source

Syntheses and Spectroscopic Characterization on New [O–3-phenyl-1-propyl-(4-methoxyphenyl)dithiophosphonato] Ni(II), Cd(II) and Hg(II) Complexes

Journal of the Turkish Chemical Society, Section A: Chemistry, 2018
In this study, four new dithiophosphonic acid complexes, namely, trans-bis-[O–3-phenyl-1-propyl-(4-methoxyphenyl) dithiophosphonato] nickel (II), {Bis-pyridine-bis-(O–3–phenylpropyl (4-methoxyphenyl) dithiophosphonato]} nickel (II), bis-{bis-( O–3-phenyl-
Ertuğrul Gazi Sağlam, Ahmet EBİNÇ
doaj   +1 more source

Electrochemical oxidation of binary copper-nickel alloys in cryolite melts [PDF]

, 2007
Anodic oxidation of copper, nickel and two copper-nickel alloys was studied in cryolite melts at 1000°C. In an oxide-free melt, anodic dissolution of each material was observed, and the dissolution potential increases with the content of copper.
Palau, Patrice, Arurault, Laurent, Cassayre, Laurent, Massot, Laurent, Taxil, Pierre, Chamelot, Pierre   +5 more
core   +1 more source

Nickel-Catalyzed Enantioselective Hydrothiocarbonylation of Cyclopropenes

, 2023
Hydrothiocarbonylation of olefins using carbon monoxide and thiols is a powerful method to synthesize thioesters from simple building blocks. Owing to the intrinsic challenges of catalyst poisoning, transition-metal-catalyzed asymmetric thiocarbonylation,
Bill Morandi (1368567), Xichang Dong (1789246), Juntao Ye (1964032), Song-Zhou Cai (16501396), Rongrong Yu (3876775), Can Li (31070), Xianjie Fang (1602598), Hongyu Zhong (2933082)   +7 more
core   +1 more source

Colorimetric Estimation of Ni(II) Ions in Aqueous Solution

E-Journal of Chemistry, 2009
A rapid and accurate colorimetric method has been proposed for the estimation of nickel(II) in aqueous solution. It is found that nickel(II) ions have maximum absorbance at 393 nm in distilled water and in aqueous sucrose solution (0.3 mol dm-3). In both
S. Mathpal, N. D. Kandpal
doaj   +1 more source

Synthesis and Theoretical Study of Zinc(II) and Nickel(II)-Complexes of 5-Methoxyisatin 3-[N-(4-chlorophenyl)thiosemicarbazone]

Journal of Mathematical and Fundamental Sciences, 2013
Zinc(II) and nickel(II)-complexes of 5-methoxyisatin 3-[N-(4-chlorophenyl) thiosemicarbazone] (H2MICP) were synthesized and characterized by infrared, ultraviolet and 1H-NMR spectroscopies as well as elemental analysis.
Fatma Kandermirli, Murat Saracoglu, Gamze Bulut, Eno Ebenso, Taner Arslan, Asgar Kayan   +5 more
doaj   +1 more source

Hydrothermal synthesis of copper (II) and Nickel (II) nano complexes with unsymmetric tetradentate Schiff base ligand. New precursors for preparation of copper (II) and nickel (II) oxides nano-particles [PDF]

Nanochemistry Research, 2018
Two new nano particles of copper (II) and nickel (II) complexes, [Cu(cd5Clsalen)] (1) and [Ni(cd5Clsalen)] (2) with unsymmetrical tetradentate Schiff base ligand cd5Clsalen={methyl-2-[N-[2-(2-hydroxy-5-choloro-2phenyl) methylidynetrilo]ethyl}amino-1 ...
Mohammad Jaafar Soltanianfard, Sheida Esmaielzadeh, Saied Parsam, Ayoub Rahmani Nejad   +3 more
doaj   +1 more source

Nickel-Catalyzed Amination of Aryl Thioethers: A Combined Synthetic and Mechanistic Study

, 2020
Herein, we report a nickel–1,2-bis­(dicyclohexylphosphino)­ethane (dcype) complex for the catalytic Buchwald–Hartwig amination of aryl thioethers. The protocol shows broad applicability with a variety of different functional groups tolerated under the ...
Patrick Müller (1455301), Bill Morandi (1368567), Tristan Delcaillau (8648163), Alessandro Bismuto (2600398)   +3 more
core   +5 more sources

Acute Toxicity and Gastroprotective Effect of the Schiff Base Ligand 1H-Indole-3-ethylene-5-nitrosalicylaldimine and Its Nickel (II) Complex on Ethanol Induced Gastric Lesions in Rats

Molecules, 2012
The present study was performed to evaluate the gastroprotective activity of Schiff base ligand derived from the condensation reaction of tryptamine (an indole derivative) and 5-nitrosalicylaldehyde (TNS) and its nickel (II) complex against ethanol ...
Pouya Hassandarvish, Hapipah Mohd Ali, Mohamed Mustafa Ibrahim, Mahmood Ameen Abdullah   +3 more
doaj   +1 more source

Cis versus trans arrangement of dithiocarbazate ligands in bis-chelated Ni and Cu complexes

Acta Crystallographica Section E: Crystallographic Communications, 2020
The structures are described of two bis-chelated metal complexes of nickel(II) and copper(II) with S-n-hexyl 3-(1-phenylethylidene)dithiocarbazate Schiff bases in a cis configuration, namely, bis[S-n-hexyl 3-(1-phenylethylidene)dithiocarbazato-κ2N3,S ...
Khurshida Begum, Sabina Begum, Chanmiya Sheikh, Ryuta Miyatake, Ennio Zangrando   +4 more
doaj   +1 more source