To determine the oxidation state of nickel (Ni) in the complex (Ni(CO)4), we can follow these steps: 1. Identify the overall charge of the complex: The complex (Ni(CO)4) is neutral, meaning its overall charge is 0. 2. Determine the contribution of the ligands: In this complex,...
The presence of an electrophile achieved another stereoselective carbon-carbon bond formation via the nickel enolate intermediate.doi:10.1016/S0040-4039(01)80853-4Toshikazu HiraoShinichiro NagataYoshihiro YamanaToshio AgawaElsevier BVCheminformT. Hirao, S. Nagata, Y. Yamana, T. Agawa, Tetrahedron Lett....
The [Ni(CO)4]-mediated carbonylative cycloaddition of alkynes and allyl halides first reported by Chiusoli, has been reviewed, extended and optimized for application to cyclopentenone synthesis. An insight into the reaction mechanism is also given to explain the results obtained, in particular the ...
The geometry of Ni(CO)4 has been optimized with basis sets of varying size, the larger ones being of near-Hartree-Fock quality. The best basis sets give a metal-ligand bond distance 0.097 A longer than experiment. Relativistic corrections have been obtained at the level of first-order pertu...
图2 多孔Ni/Al2O3氨分解催化剂 自热催化剂是一类不需要外部能量输入即可实现氨分解过程的催化剂。其原理是利用氨氧化燃烧反应的放热过程为氨分解过程提供能量,按照反应循环过程的激活方式又可以分为吸附激发型和氧化激发型。 在实际生产过程中,热催化氨分解所使用的反应器对于整个反应过程具有重要的影响。研究表明,反...
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ChemInform Abstract: Ni(CO)4 and Fe(CO)5: Molecular Structures in the Solid Statestructure (organic substancesorgano‐iron compoundsorgano‐nickel compoundsChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To ...
L. Oxygen-atom transfer from nitrous oxide to a nickelmetallacycle. Synthesis, structure, and reactions of [cyclic] (2,2′-bipyridine)Ni(OCH2CH2CH2CH2). J. Am. Chem. Soc. 115, 2075–2077 (1993). Article CAS Google Scholar Matsunaga, P. T., Mavropoulos, J. C. & Hillhouse, G....
Among non-precious metals, nickel [3] and nickel-based [4] composites are regarded as the most promising catalysts for the EOR in alkaline electrolyte. However, there is still plenty of room, not only to enhance their catalytic performance but also to explore a simple and sophisticated ...
The iron and nickel salts with an assay of more than 98%, which were manufactured for laboratory uses, were purchased from LLC «ChemTrade» (Russia Federation). The catalytic aquathermolysis processes with water-soluble catalysts NiSO4 and FeSO4 are conducted in a high-pressure and high-temp...