A new approach to the relationship between bond energy and electronegativity |
| |
Authors: | Derek W. Smith |
| |
Affiliation: | Department of Chemistry, University of Waikato, Hillcrest Road, Hamilton, New Zealand |
| |
Abstract: | The familiar equation whereby Pauling related heteronuclear bond energies DA–B to the electronegativity difference Δχ (=∣χA − χB∣) and the homonuclear bond energies DA–A and DB–B has been the subject of critical scrutiny for at least half a century. A modification to this equation that combines the concepts of electronegativity and hardness/softness can be rewritten in terms of two quantities x and y, both having absolute significance. Both homo- and heteronuclear bond energies can be rationalised from these new equations. The quantities x are linearly related to Pauling electronegativities, while y appears to be a measure of an atom’s intrinsic bonding potential, related to size and availability of valence orbitals. |
| |
Keywords: | Bond energy Bonding theory Electronegativity Hard&ndash soft interactions |
本文献已被 ScienceDirect 等数据库收录! |
|