نتایج جستجو برای: ni p c

تعداد نتایج: 2184242  

2012
Masoud Rafizadeh Hamid Reza Saadati Moshtaghin Vahid Amani

In the title compound, [Ni(C(2)H(8)N(2))(3)][O(2)P(OCH(3))(2)](2), the Ni(II) atom is six-coordinated in a distorted octa-hedral geometry by six N atoms from three ethyl-enediamine ligands. The P atoms of the anions adopt a distorted tetra-hedral geometry. In the crystal, inter-molecular N-H⋯O and C-H⋯O hydrogen bonds link the cations and anions into a three-dimensional network.

2017
Lin Chen Lilin Lu Hengli Zhu Yueguang Chen Yu Huang Yadong Li Leyu Wang

Incorporating oxophilic metals into noble metal-based catalysts represents an emerging strategy to improve the catalytic performance of electrocatalysts in fuel cells. However, effects of the distance between the noble metal and oxophilic metal active sites on the catalytic performance have rarely been investigated. Herein, we report on ultrasmall (∼5 nm) Pd-Ni-P ternary nanoparticles for ethan...

2011
Ni-Ya Li

In the title compound, {[Ni(C(10)H(8)N(2))(H(2)O)(4)](C(12)H(8)O(4))}(n), the Ni(II), 4,4'-bipyridyl (bipy) and 3,3'-(p-phenyl-ene)diacrylate (L(2-)) moieties are situated on inversion centres. The bipy ligands bridge Ni(II) ions into positively charged polymeric chains along [101]. The Ni(II) atom is coordinated by two N atoms from two bipy ligands and four water mol-ecules in a distorted octa...

2007
Leandro M. G. Cunha Mayura M. M. Rubinger Marcelo R. L. Oliveira Jose R. Sabino

The Ni atom in the title complex, (C(24)H(20)P)(2)[Ni(C(9)H(17)NO(2)S(3))(2)], lies on a twofold axis within a square-planar geometry defined by four S atoms derived from two dithio-carbimate dianions, each forming a four-membered chelate ring. A small distortion, described by a deviation of the Ni(II) atom by 0.083 (1) Å from the plane through the four S atoms, and also by the torsion angles a...

2007
Joseph I. Goldstein

The effect of the minor elements P, S and C on the distribution coefficients of It, Ge, Ga, Au, Cu, and Cr between the solid and liquid phases in Fe-Ni alloys was measured experimentally. Distribution coefficients for It, Ga, and Au increase with increasing P content while the distribution coefficients for It, Ge, and Ni increase with increasing C and S contents. For Ge, the distribution coeffi...

2017
Peer Schrapers Julia Ilina Christina M. Gregg Stefan Mebs Jae-Hun Jeoung Holger Dau Holger Dobbek Michael Haumann

Bacteria integrate CO2 reduction and acetyl coenzyme-A (CoA) synthesis in the Wood-Ljungdal pathway. The acetyl-CoA synthase (ACS) active site is a [4Fe4S]-[NiNi] complex (A-cluster). The dinickel site structure (with proximal, p, and distal, d, ions) was studied by X-ray absorption spectroscopy in ACS variants comprising all three protein domains or only the C-terminal domain with the A-cluste...

2014
Weiming Yang Haishun Liu Yucheng Zhao Akihisa Inoue Kemin Jiang Juntao Huo Haibo Ling Qiang Li Baolong Shen

Fe-based bulk metallic glasses (BMGs) have attracted great attention due to their unique magnetic and mechanical properties, but few applications have been materialized because of their brittleness at room temperature. Here we report a new Fe(50)Ni(30)P(13)C(7) BMG which exhibits unprecedented compressive plasticity (>20%) at room temperature without final fracture. The mechanism of unprecedent...

Journal: :Dalton transactions 2011
Mariusz Molon Timo Bollermann Christian Gemel Julian Schaumann Roland A Fischer

Treatment of [Mo(N(2))(PMe(3))(5)] with two equivalents GaCp* (Cp* = η(5)-C(5)(CH(3))(5)) leads to the formation of cis-[Mo(GaCp*)(2)(PMe(3))(4)] (1), while AlCp* did not react with this precursor. In addition, [Ni(GaCp*)(2)(PPh(3))(2)] (2a), [Ni(AlCp*)(2)(PPh(3))(2)] (2b), [Ni(GaCp*)(2)(PCy(3))(2)] (3a), [Ni(GaCp*)(2)(PMe(3))(2)] (3b), [Ni(GaCp*)(3)(PCy(3))] (4) and [Ni(GaCp*)(PMe(3))(3)] (5) ...

Journal: :Dalton transactions 2011
Andrea Rossin Maurizio Peruzzini Fabrizio Zanobini

Reaction of the pincer hydride complex ((tBu)PCP)Ni(H) [(tBu)PCP = 2,6-C(6)H(3)(CH(2)P(t)Bu(2))(2)] with BH(3)·thf in THF at 190 K generates the corresponding borohydride complex ((tBu)PCP)Ni(BH(4)). The kinetically stable (but thermodynamically unstable) species undergoes reversible borane loss. The related fluoride complex ((tBu)PCP)Ni(F) shows the same reactivity towards BF(3)·Et(2)O, produc...

2009
Adriana Cláudia Lapria Faria Renata Cristina Silveira Rodrigues Rossana Pereira de Almeida Antunes Maria da Gloria Chiarello de Mattos Adalberto Luiz Rosa Ricardo Faria Ribeiro

UNLABELLED Cell culture system has been used to evaluate alloy cytotoxicity under different environments, testing the extracts, but the effect of temperature variation on the cytotoxicity of dental alloys has not been analyzed. OBJECTIVE The aim of the present study was to investigate if temperature variation could affect dental alloy cytotoxicity, testing alloy extracts in an epithelial cell...

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