نتایج جستجو برای: ni equivalent

تعداد نتایج: 190370  

2008
Ruixia Cao Qibao Wang Hongjian Sun

The title compound, [NiCl(2)(C(3)H(9)P)(3)], was obtained as a product of the reaction of [NiCl(2)(PMe(3))(2)] with an equivalent trimethyl-phosphine in diethyl ether. It easily loses trimethyl-phosphine at room temperature to give NiCl(2)(PMe(3))(2). There are two independent mol-ecules in the asymmetric unit, and their bond lengths and angles are similar. The Ni environment is trigonal bipyra...

2015
Matthew R. Shaner James R. McKone Harry B. Gray Nathan S. Lewis

An np-Si microwire array coupled with a two-layer catalyst film consisting of Ni–Mo nanopowder and TiO2 light-scattering nanoparticles has been used to simultaneously achieve high fill factors and lightlimited photocurrent densities from photocathodes that produce H2(g) directly from sunlight and water. The TiO2 layer scattered light back into the Si microwire array, while optically obscuring t...

Journal: :Journal of the American Chemical Society 2009
Jorge Torres-Nieto William W Brennessel William D Jones Juventino J García

The reactivity of the nickel(I) dimer [(dippe)Ni(mu-H)](2) (1) with biphenyl-2-thiol was explored with the aim of clarifying the key step of sulfur extrusion during the hydrodesulfurization process using dibenzothiophene (DBT). These reactions were monitored by variable temperature NMR experiments which allowed the complete characterization and isolation of [(dippe)(2)Ni(2)(mu-H)(mu-S-2-bipheny...

2014
Robert E. Kopp Solomon M. Hsiang

Note that, when η = 0, ci is simply the expected income of i. We then calculate the inequality-neutral certainty-equivalent income loss. To do this, we find the equalpercentage loss that, if forfeited by all agents with certainty, yields the same welfare as the actual crosssectional distribution of certainty equivalent losses ci . Denoting the inequality-neutral certainty-equivalent income loss...

2014
Andrew P. Purdy Ray J. Butcher

In the title complex, [Ni(C6H9N2O3S)2(H2O)2]·2H2O, the Ni(II) atom lies on an inversion center and is chelated by N and O atoms of two symmetry-equivalent imidazole-sulfonate ligands in the basal plane, and two water O atoms in axial positions in an overall octa-hedral configuration. The crystal structure displays O-H⋯O and N-H⋯O hydrogen bonds, which connect the components into an extended thr...

Journal: :Biochemistry 1999
G J Colpas T G Brayman L J Ming R P Hausinger

The urease accessory protein encoded by ureE from Klebsiella aerogenes is proposed to bind intracellular Ni(II) for transfer to urease apoprotein. While native UreE possesses a histidine-rich region at its carboxyl terminus that binds several equivalents of Ni, the Ni-binding sites associated with urease activation are internal to the protein as shown by studies involving truncated H144UreE [Br...

Ali Asghar Mowlavi, Mehdi Ghorbani Mona Azizi Zeinab Mohammadpoory

Introduction: One of scientific concern is increasing of unwanted neutron dose to the patient, in head and neck radiation therapy due to the presence of some isotopes in dental restorations and head of medical linac. The aim of this study is to measure the equivalent dose of thermal and fast neutron due to head of Siemens Primus Linac and a healthy tooth, Amalgam, Ni-Cr alloy a...

Journal: :J. Symb. Log. 2004
Juliette Kennedy Saharon Shelah

The authors show, by means of a finitary version ¤ λ,D of the combinatorial principle ¤ ∗ λ of [7], the consistency of the failure, relative to the consistency of supercompact cardinals, of the following: for all regular filters D on a cardinal λ, if Mi and Ni are elementarily equivalent models of a language of size ≤ λ, then the second player has a winning strategy in the Ehrenfeucht-Fräıssé g...

2000
K. N. Altmann D. Y. Petrovykh G. J. Mankey R. F. Willis F. J. Himpsel

The spin-split Fermi-level crossings of the conduction band in Ni are mapped out by high-resolution photoemission and compared to the equivalent crossing in Cu. The area of the quasiparticle peak decreases rapidly below EF in Ni, but not in Cu. Majority spins have larger spectral weight at EF than minority spins, thereby enhancing the spin polarization beyond that expected from the density-of-s...

Journal: :Physical chemistry chemical physics : PCCP 2015
Fernando Cárdenas-Lizana Mark A Keane

The chemoselective continuous gas phase (T = 573 K; P = 1 atm) hydrogenation of nitroarenes (p-chloronitrobenzene (p-CNB) and m-dinitrobenzene (m-DNB)) has been investigated over a series of oxide (Al2O3 and TiO2) supported Au and Ni-Au (1 : 10 mol ratio; 0.1-1 mol% Au) catalysts. Monometallic supported Au with mean particle size 3-9 nm promoted exclusive formation of p-chloroaniline (p-CAN) an...

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