Pauling’s electronegativity values

Titanium dioxide differs from silica mainly in two respects (1) the Ti + ions are octahedrally coordinated in all three modifications of TiOji (2) the Ti—0 bond is more pronouncedly ionic than the Si—O bond. Using Pauling s electronegativity values (297), one calculates a 63% ionic character for the Ti—0 single bond versus 50% for Si—O. In SiOj, there is certainly some double bond character involving 3d orbitals of the Si atom, causing lowered ionic character. Therefore, characteristic differences should be expected regarding the surface chemistry. 

Ab initio calculations were carried out on both the ni-6 and ni-6 configurations of mdo-B6H64 and fourteen other mono- and di-heteroatom substituted analogs (see Figure 4). The heteroatoms (followed by Pauling s electronegativity values in brackets, ) included C 2.5, N 3.1, S 2.4, and 0 3.5], to be compared withB 2.0. ... 

The most commonly used electronegativity scale was devised by Linus Pauling. Table 1.3 keys Pauling s electronegativity values to the periodic table. 

Table 1.12. Pauling s electronegativity values of the elements in (eV.molecule...

Pauling s electronegativity values for many of the elements. The values are unitless. Fluorine, the most electronegative element, has an electronegativity of 4.0. The least electronegative element, cesium, has an electronegativity of 0.7. The values for all other elements lie between these two extremes. 

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