Addendum Chapter 14
203
|(y + φ ab *)
α
(φ ab )
α
(φ ab )
β
|  |(φ ya )
α
(φ ab )
α
(φ ab )
β
| pertains
17b
, with  = kl/(1 + kk*).
The associated valence-bond structure for |(φ ya )
α
(φ ab )
α
(φ ab )
β
| is
17b Y A B.
3. Additional References on Valence
Additional publications on valence for a variety of types of “increased-valence”
and non-paired spatial orbital structures are those of Ref. 18.
13. K.B. Wiberg, Tetrahedron, 24, 1083 (1968).
14. R.D. Harcourt, (a) J. Mol. Struct. THEOCHEM 908, 125 (2009). (b) J. Phys. Chem. A,
114, 8573, 8932 (2010).
15. S. Shaik, D. Danovich, B. Silvi, D. Lauvergnat and P.C. Hiberty, Chem. Eur. J. 11,
6358 (2005).
16. S. Shaik, D. Danovich, W. Wu and P.C. Hiberty, Nature Chem. 1, 443 (2009).
17. R.D. Harcourt, (a) J. Phys. Chem. A, 103, 4293 (1999); Addition: 115, 11260 (2003).
(b) J. Phys. Chem. A, 114, 8573, 8932 (2010).
18. R.D. Harcourt, (a) J. Mol. Struct. THEOCHEM, 684, 167 (2004). (b) Aust. J. Chem.
58, 753 (2005). (c) J. Mol. Struct. THEOCHEM, 716, 99 (2005). (d) Aust. J. Chem. 60,
691 (2007).