Superfine interaction

Maximum value. Superfine interactions of neighbouring methyl ... 

A. G. Lundin, S. P. Gabuda, A. I. Livshits, Nuclear Magnetic Resonance and superfine interaction in crystals with tysonite structure, Fiz. Tverd. Tela (S.-Petersburg), 9, 707-710 (1967) (in Russian). 

If we consider a nucleus being not a point but a volumetric nucleus, additional effects in the electron-nucleus interaction appear. They play a very important role in the physical description of an atom. These additional effects are exceedingly small in comparison with the main Coulomb and even with fine interactions (refer to Section 7.5.4). So, they refer to the number of intraatomic superfine interactions. ... 

The first term in (8.2.4) (E in eq. (8.2.5)) describes the electrostatic interaction of an electron shell with the point nucleus charge at the origin (Figure 8.2a). This term corresponds fully to the Coulomb energy, which was discussed in Section 7.5 hence, the quantization of the energy is just the same as was accepted above. In other words, E is the energy that describes the electron shell state in the absence of superfine interactions. 

Intraatomic superfine interaction is described differently depending on the aggregative state of the substance investigated. In particular, it has the same nature in liquids as that described in Section 8.3 and is referred to as contact interaction it is described by the term ... 

The intensity of the EPR resonance absorption is a measure of the number of paramagnetic centres present [346], while the type of line observed and the measured g factor are indications of the interactions of the paramagnetic particles and of their distribution within the matrix. Such spectra are much more sensitive to changes in crystal field and atomic orientations than X-ray diffraction and are not dependent upon crystallinity [347]. The nature of the paramagnetic particles may be discerned from the superfine structure of the spectrum. 

Recently, we reported that an Fe supported zeolite (FeHY-1) shows high activity for acidic reactions such as toluene disproportionation and resid hydrocracking in the presence of H2S [1,2]. Investigations using electron spin resonance (ESR), Fourier transform infrared spectroscopy (FT-IR), MiJssbauer and transmission electron microscopy (TEM) revealed that superfine ferric oxide cluster interacts with the zeolite framework in the super-cage of Y-type zeolites [3,4]. Furthermore, we reported change in physicochemical properties and catalytic activities for toluene disproportionation during the sample preparation period[5]. It was revealed that the activation of the catalyst was closely related with interaction between the iron cluster and the zeolite framework. In this work, we will report the effect of preparation conditions on the physicochemical properties and activity for toluene disproportionation in the presence of 82. ... 

Huang JY, Superfine R, Shen YR (1990) Nonlinear spectroscopic study of coadsorbed liquid-crystal and surfactant monolayers Conformation and interaction. Phys Rev A 42 3660... 

Accordingly, fixation by tiiis fiber is likely due to static electric attraction. However, there are enzymes tiiat can be fixed more on dimethylaminated superfine fibers (SFF) tiian on trimethylaminated SFF. Thus, fixation using only static charge interaction is difficult to explain. 

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