Another major factor affecting the growth of hydrotreating is the future of the synthetic fuels industry, particularly the upgrading of liquids from coal, shale, and tar sands, where the levels of oxygen and nitrogen are much higher than those of conventional crude oils; consequently, relatively ...
clearer picture of the oxygen activation processes by manganese(II) co-ordination complexes begins to emerge, we are more likely to understand the biological significance of the Mn-O2 interaction in various enzymes and to use the activated oxygen molecule for the catalytic oxidation of organic ...
Chenyi,Wang - 《Synthesis & Reactivity in Inorganic Metal Organic & Nano Metal Chemistry》 被引量: 2发表: 2007年 Progress in the chemistry of nitrogen-, oxygen- and sulfur-containing heterocyclic systems The review is devoted to modern trends in the chemistry of nitrogen-, oxygen-and sulfur-co...
Strong stabilization of the peroxo moiety precluded oxygen transfer from 1 to organic substrates. On the other hand, pyrazine- and pyridine-2,5-dicarboxylic acids yielded polymeric compounds 2–4 where both carboxylate groups of the ligands are deprotonated. Complexes 2–4 epoxidize tetramethyl...
A strategy to accelerate the polym... C Liang,S Dai,X Wang - 《Langmuir the Acs Journal of Surfaces & Colloids》 被引量: 447发表: 2008年 The intrinsic reactivity of carbons to oxygen The intrinsic reactivities, that is the reaction rates per unit area of pore surface in the absence of...
The cytochrome P450-catalyzed insertion of an oxygen into a substrate culminates a process that reduces molecular oxygen to a species equivalent, in terms of formal electron count and reactivity, to an oxygen atom.1–6 The cytochrome P450 catalytic cycle traverses the following steps (Fig. 1):...
the simulation of multiphase materials such as oxides in contact with water and oxygen-containing polymers requires multiple oxygen types. Therefore, different ReaxFF ‘branches’ have been developed, such as the combustion and the aqueous phase branches42. ReaxFF also does not cover complex polymers...
Comparative analysis of crystal structures of E,E-configured para-substituted acetophenone azines with halogen, oxygen, nitrogen and carbon functional groups substituent in a series of closely related azines and to assess and distinguish between intrinsic electronic and steric effects and consequences of...
Oxidation of a thf suspension of [{Mo(CO)2(η-C5Me5)(OMe)}n] by oxygen gives the MoVI derivative [{Mo(η-C5Me5)(O)2}2(µ-O)](6), together with unidentified products. The X-ray crystal structure of (6) has been established: (6) is monoclinic, space group P21/a, a= ...
Process and catalyst for the preparation of aldonic acids This invention relates to a process for the preparation of aldonic acids (in particular gluconic acid) by oxidation of aldoses with oxygen or with a gas containing oxygen, in the presence of supported bimetallic catalysts based on gold ...