The polynuclear nickel complexes exhibit antiferromagnetic exchange through combinations of diazine (N–N) and water and hydroxide bridges ((Ni)=4.9, 5.25 cm; (Ni)=15.7 cm). The Co(III) complex is diamagnetic.The potentially bis-bidentate ligand 1,4-di-2-pyridylaminophthalazine (pap), forms ...
Compared with the examples of iron-catalyzed asymmetric reduction, cobalt- and nickel-catalyzed ATH and AH of ketones are even seldom reported. In early 2004, we reported the first ATH of ketones with catalysts generated in situ from iron cluster complex and chiral PNNP ligand. Since then, we...
Moreover, the alloy composition comprises both a (Co, Ni)-gamma phase and an L1 2 -structured (gamma prime) phase. Various components made from the cobalt-nickel alloy composition are also described. Examples include high-temperature machinery and devices, e.g., components of gas turbine ...
Although cobalt is an essential element for life in trace amounts, at higher levels cobalt shows mutagenic and carcinogenic effects similar to those of nickel. Occupational exposure to cobalt has been linked to various lung diseases, such as pneumonitis, fibrosis, and asthma. Cobalt has been ...
The meaning of COBALT is a magnetic metallic element that is used especially in alloys, in batteries, and as a pigment in paint and glass. Did you know?
of the total weight of the composition. Moreover, the alloy composition comprises both a (Co, Ni)-gamma phase and an L12-structured (gamma prime) phase. Various components made from the cobalt-nickel alloy composition are also described. Examples include high-temperature machinery and devices, ...
Cobalt is a lustrous, silver-blue metal known for its strength, corrosion resistance, and high melting point. It is primarily sourced from copper and nickel mining operations. The leading producers of cobalt are the Democratic Republic of Congo, Russia, and Australia. Cobalt is used in rechargeab...
The meaning of COBALTITE is a grayish to silver-white mineral consisting of a sulfur arsenide of cobalt also containing iron and sometimes nickel and used in pigments.
Negative D values are preferable for the formation of an energy barrier between two states with S = ±3/2 and the relaxation of magnetization [5]. There are some examples of mononuclear octahedral cobalt(II) complexes with easy plane magnetic anisotropy that exhibit field-induced slow magnetic ...
A joint venture between Canadian miner Sherritt International and General Nickel Company of Cuba produces the metal via open pit mining at deposits in the the Moa region, which are transported to Canada to be refined at a facility in Fort Saskatchewan, Alberta. ...