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Complex complexation degree

Usually we are only interested in mutual intensity suitably normalised to account for the magnitude of the helds, which is called the complex degree of coherence 712 (r). This quantity is complex valued with a magnitude between 0 and 1, and describes the degree of likeness of two e. m. waves at positions ri and C2 in space separated by a time difference r. A value of 0 represents complete decorrelation ( incoherence ) and a value of 1 represents complete eorrelation ( perfect coherence ) while the complex argument represents a difference in optical phase of the helds. Special cases are the complex degree of self coherence 7n(r) where a held is compared with itself at the same position but different times, and the complex coherence factor pi2 = 712(0) which refers to the case where a held is correlated at two posihons at the same time. [Pg.279]

This theoretical model allows to predict the variation of complexation degree 6 and the molecular weight of the complex versus PAA concentration, molecular weight of the primary chains (PAA, polybase), concentration ratio r - [polybase]/[PAA], acrylate ratio p, and the minimvim chain length 1 (27). The theoretical predictions about the evolution of the system are confirmed by experimental results. For instance, in figure 12 (DP ). - which is the num-... [Pg.83]

Osada studied the enthalpy and entropy changes in the complex formation between PMAA and PEO by potentiometric titration471. The fraction of the binding groups of the complex (degree of conversion, ), the stability constant (K), and thermodynamic parameters (AF°, AH0 and AS0) are related with each other by the following equations ... [Pg.55]

TTie structural features are represented by molecular descriptors, which are numeric quantities related directly to the molecular structure rather than physicochemical properties. Examples of such descriptors include molecular weight, molecular connectivity indexes, molecular complexity (degree of substitution), atom counts and valencies, charge, molecular polarizability, moments of inertia, and surface area and volume. Once a set of descriptors has been developed and tested to remove interdependent/collinear variables, a linear regression equation is developed to correlate these variables with the retention parameter of interest, e.g., retention index, retention volume, or partition coefficient The final equation includes only those descriptors that ate statistically significant and provide the best fit to the data. For more details on QSRR and the development and use of molecular descriptors, the reader is referred to the literature [188,195,198,200-202 and references therein]. [Pg.300]

In this way, it is possible, if necessary, to let the mixture migrate over a long distance relative to the solvent and so to obtain a very high separation factor. In most cases, non-isotopic ions are separated in very high purity. In some rare cases, in which the relative difference of the mobility is less than 1% (e.g. Lanthanides and some actinides) pure components are only obtained if the mobility difference is increased by additional effects, such as different complexation degree of the components by means of a suitable ligand. [Pg.538]

He Liwen, Shi Shiliang, Song Yi, et al. Complexity and measurement of complex degree of gas emission in heading faces of coal mine [J]. Joimial of China Coal Society, 2008, 33 (5) 547-550. [Pg.97]

Supramolecule (complex). degree of order interactions between subunits symmetry of packing intermolecular interactions... [Pg.1402]

In the synthesis of supported platinum catalysts, chloride complexes of platinum (IV) are commonly used as precursors. Their sorption on the alumina surface occurs from aqueous solutions and implies the involvement of OH groups of the support surface. Therewith, two main mechanisms of the interaction between metal complex and support are considered, implementation of each mechanism depending both on the chemical composition of a complex (degree of hydrolysis) and the ratio of various OH groups (Belskaya et al., 2008, 2011 Bourikas, 2006 Lycourghiotis, 2009). The first mechanism consists in the formation of outer sphere complexes it implies electrostatic interaction between chloroplatinate and alumina surface, which is protonated and positively charged at low pH of the solution ... [Pg.153]

If weak complexes are rapidly formed, on-capillary partial complexation can be used. A ligand is added to the running electrolyte and a rapid equilibrium between the free metal ions and their complexes is established, with most of the ions present in the free form. Owing to different complexation degrees with various charges on the complexes, the ions have different migration rates. The capillary zone electrophoresis (CZE) mode and an indirect UV photometric detection method are usually employed in this case, as only a small fraction of the cations is complexed. [Pg.371]

Using chemical routes for the preparation of ceramic phases, it is possible to obtain materials with high purity and chemical homogeneity, single phase and greater complexity degrees. However, cost, complexity of the process and amount of produced material are considerable drawbacks. Among the chemical routes, the methods known by polyol, combustion reaction, Pechini, micelles and sol gel are most used. [Pg.462]

Classification of medical devices is related to the operational complexity degree of the equipment, the cost and time needed for training the health professional. According to Calil and Teixeira [5] this complexity can be (a) low-easy operation, no need for skilled human resource and training (b) medium-requires human resources with basic formation and equipment proper training and (c) high-demands qualified and specialized technicians and specific training. [Pg.737]

Mathematically, the most common approach is the use of correlation functions T, which are related to the complex degree of coherence y and... [Pg.27]

This is the general interference law for partially coherent light ynir) is called the complex degree of coherence. Its meaning will be illustrated by the following we express the complex quantity as... [Pg.50]

Supermolecule (complex) Degree of order Interactions between subunits Symmetry of packing Intermolecular interactions... [Pg.2]

The complexity degree increases whenever such matrices are used... [Pg.325]

Using as systemization criteria the complexity degree the following categories of ions in the solids structures there can be distinguished ... [Pg.426]

The performances of the converter. It includes the net value of ammonia, the pressure difference between inlet and outlet of the converter, the rate of utilizing the high-pressure space, distribution of temperature, the degree of the difficulty in reduction, the complex degree of the structure, operation flexibility and so on. [Pg.734]

The complexation degree O shows to what extent the solvate complex concentration decreases in the complex system ... [Pg.6]

Having used the expression of the complexation degree O, it follows from Eqs. (1.12) and (2.3) that... [Pg.15]

Figure 2.3 shows dependence on the dilution of solutions in the system Cu Cu(II), ethylenediamine. As this ligand has protonated forms, which do not form stronger complexes with Cu(II), the complexation degree O can be regulated... [Pg.16]

It is responsible to suppose that the regularities established for very simple model could serve as a guide to more complex cases. The results obtained for model system show that at least two parameters, namely the rate constant, k i, and the complexation degree, O (see Eq. (1.12)), are responsible for deviations from the equiUbrium distribution. This effect is most pronounced at low concentrations of electrically active complexes that are generated by the preceding reaction. Of course, any preliminary premise on system lability should be validated or disproved by the respective simulations. [Pg.57]


See other pages where Complex complexation degree is mentioned: [Pg.352]    [Pg.13]    [Pg.456]    [Pg.131]    [Pg.73]    [Pg.456]    [Pg.63]    [Pg.369]    [Pg.31]    [Pg.424]    [Pg.202]    [Pg.26]    [Pg.47]    [Pg.164]    [Pg.27]    [Pg.513]    [Pg.8]    [Pg.22]    [Pg.29]    [Pg.68]    [Pg.73]    [Pg.117]   
See also in sourсe #XX -- [ Pg.6 ]




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