Pauling electronegativity scale

Electron-donor end group, 20 504 Electron donors, in Ziegler-Natta polymerization, 26 518-521 Electron effective mass, in direct gap semiconductors, 22 143—144 Electronegativities, Pauling scale of,... 

There is a linear correlation between the empirical electronegativity (Pauling scale) and hardness and the absolute electronegativity (Mulliken electronegativity) for the nontransition metals ... 

Halogen Electronegativity (Pauling scale) First electron affinity/kj moh ... 

Hydrogen is unusual because it can form both a cation (1I+) and ail anion (11 ). Moreover, its intermediate electronegativity (2.2 on the Pauling scale) means that it can also form covalent bonds with all the nonmetals and metalloids. Because hydrogen forms compounds with so many elements (Table 14.2 also see Section 14.2), we shall meet more of its compounds when we study the other elements. 

Electronegativity values, on the Pauling scale, of some elements are listed in the table. 

A simple linear shift of the entire electronegativity scale by —0.56 (i.e., shifting F downward from its arbitrarily chosen value 4.0 on the Pauling scale to new value 3.44) would make xnb(N) = 0, the more obvious electronegativity of a nonexistent ligand. 

Figure 2.6. The approximate linear relationship between (Miedema 1973) and the electronegativity r) (Pauling scale) as illustrated by de Boer et al. (1988).

Pauling scale phys chem A numerical scale of electronegativities based on bond-energy calculations for different elements joined by covalent bonds. pol-iri Skal Pavy s solution analychem Laboratory reagent used to determine the concentration of sugars in solution by color titration contains copper sulfate, sodium potassium tartrate, sodium hydroxide, and ammonia in water solution. pa-vez S3,lu-sh3n Pb See lead. 

The electronegativity difference between boron and nitrogen (2.0 and 3.0, respectively, on the Pauling scale) results in a polar B-N bond. The regio-selectivity of the reactions of borazines with electrophiles and nucleophiles can be understood in this context. Thus the reaction of borazine with three equivalents of HCl produces (C1HBNH2)3 in which the proton seeks out the nitrogen centres and the chloride ions become attached to boron. ... 

Allen, L. C.J.Arn. Chem. Stic. 1989. 111,9003-9014, Acc. Client. Res. IWO,23, 173-176 A Am. Chem. Stic. 1992.114,1510-1511 Can. J. Chem. 1992,70.631-635. Note that Allen s spectroscopic electronegativity, like Mulliken s. will normally be expressed in terms of electron volts, but can he converted to the Pauling scale if desired. 

Electronegativity and other properties from DFT calculations have been discussed by Zhan et al. [5], and an electronegativity scale based on the energies of neutrals and cations which correlates well with the Pauling scale has been proposed by Noorizadeh and Shakerzadeh [6]. 

---