Electronegativity Benson

Luo, Y.-R. and Benson, S.W. (1990). New Electronegativity Scale. 11. Comparison with Qther Scales in Correlating Heats of Formation. J.PhysChem., 94, 914-917. 

I Roy and Ghosh, 2003]. An extended review of electronegativity scales was published by Luo and Benson [Luo and Benson, 1990] and some of them are listed in Table E7. 

The premise that covalent bonds between atoms with different electronegativity values are stronger than the corresponding bonds between identical atoms is not always found to be true. Benson (reference 67) pointed out that the reaction of Hgz with CI2 to produce 2 HgCl, is endothermic by at least 10 kcal/mol. 

Table 1.12 compares the electronegativity values reported by Pauling (xp), Mulliken (%m)/ Allen ( (spec)/ Nagle (x ), and Benson The Pauling,... 

Y. R. Luo and S. W. Benson. The covalent potential A simple and useful measure of the valence-state electronegativity for correlating molecular energetics. Acc. Chem. Res. 25, 375 (1992). 

Apart from the importance of the individual data, increments which reveal aspects of bonding are particularly significant. We previously emphasized the importance of the methyl to ethyl increment of —17 kJmol , which was based on an earlier analysis of electronegativity trends and found to be consistent with the data of Voronkov and coworkers . Luo and Benson " suggest —13 kJmol from their own analysis on... 

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