These radicals form complexes with transition metals (chromium, manganese, iron and nickel) and lanthanoids (lanthanum, samarium and dysprosium), and are useful precursors for the preparation of 1,5-dithia-2,4,6,8-tetraazocines. 1... A Payne - 《Reference Module in Chemistry Molecular Scie...
We foundthat the valence charge of transition metals dramatically influencesthe reaction pathways. Catalytic reactions involving lower-oxidation-statetransition metals (M I /M III , M = Co and Rh) generallyfavor a [3 + 2] cyclization pathway, whereas those involving higheroxidation states (M III...
Non-local Coulomb correlations in metals close to a charge order insulator transition J Merino - American Physical Society 被引量: 0发表: 2008年 Extraordinary pressure dependence of the metal-to-insulator transition in the charge-transfer compounds NdNiO3and PrNiO3 The pressure dependence of the ...
Polarizable Lennard–Jones model for gold.aExtension of the simple Lennard–Jones model with dummy electrons to add features of the free electron gas. The virtual electrons rest at the atom core and carry a mass of 1 au.bVisualization of the dummy electrons on the Au (111) surface in th...
Non-local Coulomb correlations in metals close to a charge order insulator transitionJaime MerinoAmerican Physical Society
For example, hydrogen can carry a charge of -1 or +1. Also, the octet rule, which states that atoms tend to gain or lose electrons to achieve a stable configuration of eight valence electrons, doesn't always apply to ionic charges. In some cases, the charge can even exceed +8 or -...
This gets dressed up in a lot of procedures, because it would be bad if JPMorgan got the math wrong or if it moved money from one account to another without getting the proper authorizations, but as a matter of, like, computer science, it is dead easy. JPMorgan keeps...
Thetypeofdefectincrystals 缺陷:在晶中的三维尺寸都比较:孔洞、夹杂物、沉淀物或第二相团等 bodydefect:incrystal3dimensionalsizeisbigger:holes、dopingimpurities、precipitationorsecondphasegroupsetc. 微缺陷:若干点缺陷在晶中的聚集形成的缺陷,尺寸比点缺陷比缺陷小:在无位错单晶中广泛存在的一类缺陷,其几何尺寸多...
Figure 4 depicts the phase evolution of the unpromoted, K-promoted, and Ba-promoted samples as a function of the temperature and testing conditions. The phase transition from Fe2O3 to Fe3O4 was observed in all samples during temperature ramping under He-diluted, 5% CO. The addition of pot...
J., Validity of double-layer charge- corrected voltammetry for assaying carbon monoxide coverages on ordered transition metals: comparisons with adlayer structures in electrochemical and ultrahigh vacuum environments. Surf. Sci. 1998, 410, 48-61....