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Paulings Rules

According to the first Pauling rule the cation/anion radii ratio, allowed for octahedral coordination (C ,) has to be in the range of 0.41 - 0.73. For tetrahedral co-ordination this ratio (f,a) has to be within the range of 0.22-0.41. To estimate the above ratios for the cations used a value of 1.4 A is taken for the O anion radius value [14]. Results are presented in the Tab 3... [Pg.178]

Mineral structures are composed in an prdered fashion from silica and alumina .etrahedra (MO4), octahedra of Al, Fe, and Mg (MOg), and various other polyhedra w hQxe M symbolizes the metal cation). They form according to certain rules, deduced by Pauling, that minimize electrostatic repulsion forces and maximize attractive forces. These Pauling rules have been stated as follows ... [Pg.37]

Apply Pauling rules to the structure of gibbsite, Al(OH)3. Are all of these rules obeyed by this structure ... [Pg.61]

Crystalline solids that contain only silica tetrahedral sheets do not exist in soils, but carbonate, oxide, oxyhydroxide, and hydroxide solids that have metal cations in octahedral coordination are widespread. The ratio of the radius of the common metal cations in soil clays to that of bivalent oxygen usually ranges between 0.4 and 0.7 (Tabl 1.1), which means that, according to the Pauling Rules, octahedral coordination of the metal cations with O(-II) is preferred. Because of their great abundance in the lithosphere and their low solubility in the normal range of soil pH values, aluminum, iron, and manganese form the most important oxide,... [Pg.3]

In calcite (CaCOs) the Ca ion has a CN 6. Using the appropriate Pauling rule determine the ion environment around each ion. [Pg.86]

Table 2.1. The Observed Structures of Ionic Compounds, the Ratio of the Ion Radii, and the Prediction According to the Pauling Rules ... Table 2.1. The Observed Structures of Ionic Compounds, the Ratio of the Ion Radii, and the Prediction According to the Pauling Rules ...
Derive the Pauling rule for the relative ion-size dependence of the structure of salts. [Pg.84]

Lindeman-Adams [54] and Grant-Paul [55,56] models. In both, the effects of various a, p, y, and 5 substituents on the chemical shielding of a particular carbon are summed. The Lindeman-Adams scheme focuses on saturated hydrocarbons and is therefore most applicable to polyolefins. The Grant-Paul rules apply to saturated carbons, but include corrections for other functional groups. Models which approximate chemical shifts for substituted aromatic [16] and olefinic [57] carbons have also been developed. An example of the use of these calculational schemes is given in Sec. III.B.l. [Pg.448]

As diseussed in Sec. II.G.l, there are several calculational schemes which can be used to estimate chemieal shifts, particularly for The following example demonstrates the use of the Grant-Paul rules, to approx-... [Pg.467]

Now arises the question does the 1 Pauling rule also an energetic correspondent Yes, it has and consists, by the aid of Coulombian electrostatic potential. [Pg.453]

TABLE 4.15 The Pauling Rule No. 1 As Applied to the Silicates Compounds ... [Pg.454]

TABLE 4.18 The Pauling Rule No.5 Apphed for the Garnet Mineral Here Treated As Ionic Crystal in the Context of the Formal Ions Paradigm, With the Associate Strengths of Electrons in Bonding (SEB)... [Pg.461]

FIGURE 4.74 Assessing the structure of Garnet crystal based on the Pauling rule no. 5 after (Borg Diens, 1992 Heyes, 1999). [Pg.461]


See other pages where Paulings Rules is mentioned: [Pg.71]    [Pg.292]    [Pg.470]    [Pg.255]    [Pg.640]    [Pg.643]    [Pg.653]    [Pg.680]    [Pg.146]    [Pg.4589]    [Pg.160]    [Pg.579]    [Pg.49]    [Pg.123]    [Pg.146]    [Pg.3]    [Pg.4588]    [Pg.134]    [Pg.135]    [Pg.445]    [Pg.35]    [Pg.11]    [Pg.57]    [Pg.212]    [Pg.430]    [Pg.461]    [Pg.486]    [Pg.215]    [Pg.356]   
See also in sourсe #XX -- [ Pg.58 ]

See also in sourсe #XX -- [ Pg.58 ]

See also in sourсe #XX -- [ Pg.37 , Pg.123 ]

See also in sourсe #XX -- [ Pg.33 ]

See also in sourсe #XX -- [ Pg.5 , Pg.387 ]

See also in sourсe #XX -- [ Pg.21 , Pg.135 ]




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Electroneutrality rule, Pauling

Grant-Paul rule

Ionic Radii and Paulings Rules

Pauling s fifth rule

Pauling third rule

Paulings rules reinterpreted

Pauling’s electroneutrality rule

Pauling’s first rule

Pauling’s rule

Pauling’s second rule

Pauling’s third rule

The Rules of Pauling and Baur

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