Results 61 to 70 of about 251,192 (298)

Mixed valence η6-arene cobalt(i) and cobalt(ii) compound [PDF]

Dalton Transactions, 2013
The first carbonyl free mixed valence cobalt(I)/cobalt(II) compound [2{L2Co(I)(η(6)-C7H8)}](2+) [Co(II)2Cl6](2-) (1) [L = PhC(N(t)Bu)2SiCl] was obtained by the reaction of four equivalents of anhydrous CoCl2 with five equivalents of N-heterocyclic chlorosilylene L. In contrast, the reaction of L with CoBr2 yielded [L2CoBr2] (2).
Azhakar, Ramachandran, Ghadwal, Rajendra, Roesky, Herbert W., Hey, Jakob, Krause, Lennard, Stalke, Dietmar   +5 more
openaire   +4 more sources

Time‐Dependent Oxidation and Scale Evolution of a Wrought Co/Ni‐Based Superalloy

Advanced Engineering Materials, EarlyView.
This study shows how a new wrought Co/Ni‐based superalloy resists oxidation at 800 ∘$^\circ$C. The oxide scale changes from rough, fast‐growing spinel to a dense, protective chromia–alumina layer. Atom probe analysis reveals tiny refractory‐rich bubbles at the interface that mark the transition to long‐term, diffusion‐controlled protection ...
Cameron Crabb, Zachary T. Kloenne, Samuel R. Rogers, Chi Hang Dominik Kwok, Mark C. Hardy, Michele S. Conroy, David Dye   +6 more
wiley   +1 more source

STUDIUL SPECTROFOTOMETRIC AL COMPUŞILOR COORDINATIVI AI COBALTULUI(II), NICHELULUI(II) ŞI CUPRULUI(II) CU TIOSEMICARBAZONA ALDEHIDEI 5-(METILENTRIMETILAMONIU)SALICILICE

Studia Universitatis Moldaviae: Stiinte reale si ale naturii, 2016
Tiosemicarbazona aldehidei 5-(metilentrimetilamoniu)salicilice ([H2L]Cl) are structură ionică, este solubilă în apă şi formează cu ionii de cobalt(II), nichel(II) şi cupru(II) compuşi coloraţi caracterizaţi spestral prin maximum de absorbţie la 390 nm ...
Angela SÎRBU
doaj   +2 more sources

Dynamics of ligand substitution in labile cobalt complexes resolved by ultrafast T-jump [PDF]

, 2008
Ligand exchange of hydrated metal complexes is common in chemical and biological systems. Using the ultrafast T-jump, we examined this process, specifically the transformation of aqua cobalt (II) complexes to their fully halogenated species.
A. H. Zewail, Brink, C. Wan, H. Ma, Ma, Osinsky, Richens, Roth, Snee, Wolynes   +9 more
core   +2 more sources

Parameter Variation in Planetary Ball Milling of Titanium Aluminide Powder in XHV‐Adequate Atmosphere

Advanced Engineering Materials, EarlyView.
This study investigates the effects of milling parameters, including rotational speed, milling duration, and ball‐to‐powder ratio, on TiAl particle size and morphology in an XHV‐equivalent atmosphere. The creation of oxide‐free surfaces enhances the mechanical properties of green bodies.
Jytte Möckelmann, Armin Piwek, Julius Peddinghaus, Kai Brunotte, Bernd-Arno Behrens   +4 more
wiley   +1 more source

The crystal structures of iron and cobalt pyridine (py)–sulfates, [Fe(SO4)(py)4]n and [Co3(SO4)3(py)11]n

Acta Crystallographica Section E: Crystallographic Communications, 2018
The solid-state structures of two metal–pyridine–sulfate compounds, namely catena-poly[[tetrakis(pyridine-κN)iron(II)]-μ-sulfato-κ2O:O′], [Fe(SO4)(C5H5N)4]n, (1), and catena-poly[[tetrakis(pyridine-κN)cobalt(II)]-μ-sulfato-κ2O:O′-[tetrakis(pyridine-κN ...
Duyen N. K. Pham, Mrittika Roy, Ava Kreider-Mueller, James A. Golen, David R. Manke   +4 more
doaj   +1 more source

Studi Pemisahan Co(ii), Cu(ii), Fe(iii) Dan Ni(ii) Secara Ekstraksi Pelarut Dengan Zat Pengkompleks Natrium Dietilditiokarbamat [PDF]

, 1993
Sodium diethyldithiocarbamate (NaDDC) as a chelating agent reacts unselectively with cobalt(II), copper(II), iron(III) and nickel(II). Their maximum wavelengths are very similar in carbon tetrachloride solution and hence these complexes could not be ...
Buchari, B. (Buchari), Tsauri, S. (Soefjan), W, K. A. (K)   +2 more
core  

Dependence of transport coefficients of Yb(Rh$_{1-x}$Co$_x$)$_2$Si$_2$ intermetallics on temperature and cobalt concentration

, 2020
Dependence of transport coefficients of the Yb(Rh$_{1-x}$Co$_x$)$_2$Si$_2$ series of alloys on temperature and cobalt concentration is explained by an asymmetric Anderson model which takes into account the exchange scattering of conduction electrons on ...
Stockert, U., Zlatić, V.
core   +1 more source

Synthesis of CoAl2O4 by double decomposition reaction between LiAlO2 and molten KCoCl3 [PDF]

, 2008
Submicronic CoAl2O4 powders were prepared by double decomposition reaction between solid LiAlO2 and molten KCoCl3 at 500 ◦C for 24 h. The reaction mechanism involves the dissolution of LiAlO2 shifted by the precipitation of CoAl2O4 until complete ...
Durand, Bernard, Er-Rakho, Lahcen, Guillemet, Sophie, Moussa, R., Ouahdi, Noura, Ouatib, Rachida El, Samdi, Azzeddine   +6 more
core   +2 more sources

In Situ Constructed Magnetic Core‐Shell Hydrogen‐Bonded Organic Framework‐on‐Metal–Organic Framework Structure: an Efficient Catalyst for Peroxymonosulfate Activation

Advanced Functional Materials, EarlyView.
In this work, a magnetic core‐shell catalyst (HOF‐on‐Fe3O4/ZIF‐67) is successfully synthesized, consisting of a metal–organic framework (ZIF‐67) with magnetic Fe3O4 as the core and a porous hydrogen‐bonded organic framework (HOF) as the shell. The catalyst efficiently activated peroxymonosulfate, resulting in rapid and effective removal of water ...
Yingying Du, Chenhui Ding, Chao Deng, Susanta Banerjee, Seema Agarwal   +4 more
wiley   +1 more source